Articles

Exploration rigs and electronic controls

May 31, 2024

by Peter Kuusimaa, Owner of Comet Tech I have decided to write this article since electric control in drilling rigs and particularly in exploration rigs is often regarded as unreliable and too complicated. However, more manufacturers already have electrical control options as well as HMI (human-machine interface = display) in their fleets to give more […]

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The big history of mining in Serbia and the bigger challenges of today

May 30, 2024

by Dragan Dragić, Exploration Manager at Konstantin Resources Recently, I’ve participated at the 13th International Conference titled ‘Mineral Resources in Serbia – Sustainable Growth Through Responsible Mining’ as a panelist in the discussion ‘Challenges and Issues in Mineral Exploration’. In preparation for this event, I have asked myself, ‘What is the rate of big discoveries […]

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BlastGyro®: Born in the oil field, matured underground

May 29, 2024

by Dag Billger, Owner & Business Manager and Duncan McLeod, Owner & Product Manager at Inertial Sensing Of late, there has been increasing interest in surveying production blast holes using gyro survey technology. With the growing realization that even holes of only 20 m (66 ft) depth can deviate by a large degree, this interest […]

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The dilemma of geological control for underground ore development

May 28, 2024

by Steve Rose, Principal Mining Geologist at Rose Mining Geology Consultants From the beginning of underground mining, it has been the practice to develop ore drives along the mineralized structure with decisions on the direction of that development made by the miner (pre-19th Century; see Agricola, 1556), the engineer or the surveyor (19th Century). Once […]

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Unveiling hidden treasures

May 28, 2024

The fascinating process of gemstone and mineral specimen exploration and exploitation in Pakistan by Noor Ullah, Business Owner at Gandhara Gemstones Pakistan, a land with a vast history and diverse landscapes, has long been a treasure trove of precious gemstones waiting to be discovered. The process of exploring these hidden riches is a meticulous and […]

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In conversation with Dr Sally Goodman

May 28, 2024

Sally Goodman is Head, Global Discovery for Newmont, spearheading the drive to discovery across the company’s global portfolio of early-stage exploration projects. Newmont is the world’s leading gold company and a producer of copper, silver, zinc and lead. The company was founded in 1921 and has been publicly traded since 1925. With its head office […]

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Exploring the future of Snow Lake with Rodren Drilling

May 28, 2024

by Derek Anderson, Health & Safety Manager and Denis Desrosiers, General Manager at Rodren Drilling As the temperatures began to drop outside in December, the heat was on in the Rodren Drilling (Rodren) shop as the team was in its final stage of preparation and planning for an extensive eight-drill winter program in Snow Lake, […]

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Ausdrill: 37 years of innovation in safety, sustainability, and productivity

May 28, 2024

by Mary Jane Rowan, Marketing & Communications Specialist at Ausdrill Ausdrill was founded in 1987 by Goldfield’s legend and pioneer of the Australian drilling industry, Ron Sayers, who started the company with one second-hand rig at the Super Pit, where Ausdrill remains in action 37 years later. Partnering with Golden Shamrock in 1991, Ausdrill expanded […]

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Exclusive interview with Viktor Tokle

May 28, 2024

Viktor Tokle began his career at the research institute SINTEF after getting a mechanical engineering degree from Trondheim Technical College. His work took him to numerous construction sites and mines across Europe. It was during a rock mechanics assignment in 1986 that Viktor got the idea for a steerable drill. He took a leap of […]

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Drill core scanning techniques: A review of the three main types

February 19, 2024

by Rowena Duckworth, Founder & Petrographer at Mintex Petrological Solutions Exploration drilling plays a fundamental role in identifying and evaluating potential mineral deposits. It follows that analysis of drill core samples from exploration projects provides valuable insights into the geological composition and potential economic viability of mineral resources. This article delves into the various scanning […]

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Exploration in remote Tanzania: A multi-faceted approach to tackling terrain & formation challenges

February 19, 2024

by William Ward, Operations Manager – East Africa at Capital Limited Capital Limited was initially awarded an exploration drilling contract with Tembo Nickel Corporation Limited (Tembo), a subsidiary of Lifezone Metals Ltd. (NYSE:LZM), at the Kabanga Nickel Project, Tanzania in late 2021. The Project hosts one of the world’s largest and highest-grade nickel sulphide deposits. […]

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Nearly 50 years of learning on the job, mostly with drillers

February 19, 2024

by John Anderson, Formerly: Regional Exploration Manager at Aberfoyle Resources; General Manager Exploration Australia and Africa – MIM Exploration; Inaugural Managing Director – Investigator Resources Often the drill is the ‘Truth Machine’ in mineral exploration I was 19 when I first engaged with drillers on a vacation job near Cobar, Australia. I was hired to […]

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Unbeatable innovation in Blast Hole Quality Control: Precision Mining

February 16, 2024

by Orlando Ramirez, CEO and Founder of Stockholm Precision Tools Beyond the explosion, have you ever stopped to think about the impact of blasting on the mining production process? Blast hole quality control is a common challenge for even the most experienced miners in the mining industry. It is not simply a matter of a […]

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In conversation with Dr Frank Bierlein

February 16, 2024

Frank Bierlein has about 35 years of experience as a geologist, including his three years as a field geologist for the Swedish Geological Survey prior and in parallel to completing his MSc degree at the University of Heidelberg (1989-1991). During that time, he almost drowned on a couple of occasions, broke through the surface of […]

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CCT: Continuous Coring Tool from BG Drilling

February 16, 2024

BG Drilling launches its latest development to compete with Norwegian technology by Kiril Apostolov, MSc, General Manager at BG Drilling Solutions Fifteen years ago, leveraging their background from the industry leader Devico, Norway (now part of Imdex), the founders of BG Drilling, Associate Prof. Shteryo Lyomov, PhD and Grigor Topev, MSc set out to make […]

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DrillGeo: Maximum quality, efficiency & sustainability for the Brazilian diamond drilling market

February 16, 2024

by Francisco Sampaio, Director at DrillGeo Founded in 2000 in Brazil, DrillGeo is a company specializing in the full range of drilling services applied to geological research and geotechnical works. Both founders of DrillGeo, Mr Gilberto Pedreira, current CEO, and Mr João Paulo Franco, current Vice President, had the dream of building a modern company, […]

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The Champion Project: A tale of awe and ore

February 16, 2024

by Dr Kris Butera, Managing Director of Plutonic Limited I sit perched in the northeastern corner of the Simpson Desert in the Australian Northern Territory, overlooking a landscape carved by extreme elements. The fiery hell of scorched desert winds has carved out a terrain that is as unforgiving as it is beautiful. Sand dunes, like […]

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Exclusive interview with Pierre Alexandre

February 16, 2024

Pierre Alexandre began his career as a surface driller for various drilling companies, working from 1974 to 1983 across Canada. Then, along with his brother, he became the Founder, President and CEO of Orbit Drilling (1986), a company specializing in surface and underground diamond drilling. Over the following decade, the company expanded its fleet and […]

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A short explanation why optical petrography knowledge is the key to preliminary identify hydrothermal magmatic processes

November 28, 2023

by Paula Montoya-Lopera, Postdoctoral Research Fellow in Economic Geology at CODES, University of Tasmania Ore deposits are developed on specific magmato-tectonic environments, on this subject exploration geologists should identify features that help to elucidate those specific zones. This short article describes the importance of understanding textural and mineralogical associations as a key exploration tool. Most […]

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Directional core drilling: San Miguel Infill Program

November 28, 2023

by Nils Ivar Iversen, Chief Executive Officer, and Daniel Popescu, Office Manager at Aziwell and David DuCote, Operations Manager at IDS de Mexico A uniquely challenging gold exploration project About 260 km (162 mi) southwest of Mexico City, on the southern bank of the Balsas River in Guerrero state, Torex Gold planned an intense infill […]

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HTM-2500TA equipped with a CyborgTM automated rod handler in South America

Marcotte’s commitment to reliability, innovation and automation

November 28, 2023

by Mathieu Audet, Mechanical Engineer at Marcotte Marcotte has been manufacturing drill components since 1992. Starting from a simple parts manufacturer, it reached the status of a complete drill manufacturer within a decade. From the notorious HTM-2500 to the versatile Mancore 900, Marcotte has since then developed a full array of robust and innovative drill […]

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Exclusive interview with Colin Rice

November 28, 2023

Colin Rice is the owner of Colin Rice Exploration Drilling Advisory, a company that provides consulting and training services to the exploration drilling sector. In the early years, Colin was one of the founding partners of SAMCHEM (Pty) Ltd; Professional Diamond Drilling Equipment (Pty) Ltd; and Borehole Survey (Pty) Ltd, which was the first company […]

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In conversation with Nick Tate

November 28, 2023

Nick Tate graduated with a BSc in Geology from James Cook University. In the 40 years since, he has worked on dozens of contracts worldwide, becoming a specialist consultant mapper of geology, alteration, and mineralization systems. His expertise has led to multiple notable discoveries in Laos, Mongolia, and Argentina, as well as an excellent reputation […]

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The airborne geophysics power for mineral exploration: An Amazonian Craton case study

November 28, 2023

by Bruna de Freitas, Independent Exploration Expert Geologist and MSc in Mineral Resources The fast improvement of geophysical tools in recent decades has transformed mineral research at the same rate, allowing prospective ore deposits to be identified without the lengthy and expensive on-site exploration procedure. Many geophysical methods are available for surveys and quick estimating […]

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RJLL Drilling: More than 100 years of experience combined

November 28, 2023

by David Bradley, Co-Owner at RJLL Drilling RJLL Drilling (RJLL) was founded in 2014 by Réal Lemoine and Jérôme Lefebvre. They both started working for Bradley Brothers at the age of 16, climbing the ladder from helpers to drill rig operators to supervisors. In the last years of Bradley Brothers, Réal was the Canadian Operations […]

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Harris Drilling: Safety is our core

August 22, 2023

by Garth Patterson, Director of U.S. Operations at Harris Exploration Drilling Our company, Harris Drilling, was awarded the contract for exploration drilling for Lithium Americas. Lithium Americas Thacker Pass is the largest known measured and indicated Lithium resource in the US and we are excited to be working with them. We started this project in […]

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The importance of instrument calibration: Scale factor error – Part 2

August 22, 2023

by Dag Billger, Owner & Business Manager and Duncan McLeod, Owner & Product Manager at Inertial Sensing One AB In Part I of this article series, we showed how important it is to have a sophisticated calibration scheme to achieve high-accuracy results when using compact MEMS gyro and inclinometer packages. Without high-end temperature calibration and […]

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The CS1000 traversing a river bed

A blitz drill venture deep into Namibia’s Kaokoland

August 22, 2023

by Kirsten Günzel, Manager at Günzel Drilling When a very perplexed geologist could not wrap his mind around a theoretical conundrum involving two nondescript outcrops showing some slight hint of faded oxidized copper, he did not rest until his associates agreed to fund the drilling of a few diamond core holes. After spending two years […]

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Nexus students

The future of Geoscience education and the National Exploration Undercover School (NExUS)

August 22, 2023

by Richard Lilly, Program Leader at the University of Adelaide Australia produces world-class geoscientists, but there is a growing skills gap between what students are taught at university and what the industry requires. How do we ensure student engagement and sustainable employment? The minerals industry is changing fast and is facing a prolonged period of […]

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Vektore logo

Vektore’s new AR tool brings speed, accuracy, precision and universal reading of structures to the core shack

August 22, 2023

by R.N. Monteiro, P.Geo., M.Sc., FSEG, Ph.D., President and Chief Structural Geologist at Vektore Exploration Consulting Corporation Why are we still struggling to apply structural geology in target exploration and development? Aren’t the tools and required skills currently available in the industry sufficient for such an application? In 2023, we still see mineral exploration ventures […]

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A sump at the bottom of the open-cut

The importance of groundwater in mining and how drillers and hydrogeologists work together to achieve the best results

August 22, 2023

by Mariajose Romero-Segura, Freelance Project Hydrogeologist and Technical Translator Groundwater, the big unknown Groundwater is an invisible natural resource. It is available in different proportions, in different rock types, and at different depths, in the Earth’s surface layer. I cannot remember how many times I have heard people saying that there is water everywhere. This […]

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Rock Drill: Expertos en perforación (ES)

August 22, 2023

by Herbert Vilcapoma Lopez, CEO & Director Ejecutivo en Rock Drill Group Rock Drill es una empresa peruana fundada en el año 2000 por Herbert Vilcapoma y Elizabeth Bravo. Con más de 23 años de experiencia, la compañía se ha especializado en brindar soluciones para el sector minero, principalmente en los mercados peruano y mexicano. […]

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Rock Drill: Experts in drilling (EN)

August 22, 2023

by Herbert Vilcapoma Lopez, CEO & Executive Director at Rock Drill Group This article is also available in Spanish: click here Rock Drill is a Peruvian company founded in 2000 by Herbert Vilcapoma and Elizabeth Bravo. With more than 23 years of experience, the company has specialized in providing solutions for the mining sector, mainly […]

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Greg Hall in the field

In conversation with Greg Hall

August 22, 2023

My professional career has involved three employers, CSR Ltd (1968-88), Placer Dome (1988-2006) and Golden Phoenix International (2006-Present). I studied chemistry and geology at the University of New South Wales (1968-72), completing the first two years part-time while working as a junior chemist at Central Laboratory in Pyrmont. I graduated in 1973 with Bachelor of […]

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AI miners

Will AI take geologists jobs?

August 22, 2023

by Nick Tate, Specialist Consultant Mapper of Geology, Alteration and Mineralization Systems Discussion on whether AI is a threat or a boon to humanity For a long time, ‘AI’ was just another set of algorithms and most people thought that it would take decades to reach a level that approached ‘HI’ (human intelligence). Then the […]

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Scratch Testing

Scratch testing applications with Boart Longyear

August 22, 2023

by Jon Peterson, Product Manager – Diamond Products at Boart Longyear     Selecting the right diamond coring bit for the ground you are drilling can be challenging – especially when navigating the product selection from different manufacturers. From crown height to material hardness, coring bits represent a refined and complex technology designed to produce […]

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Exclusive interview with Dave Harper

August 22, 2023

Dave Harper is the President, Chief Executive Officer and Director of Geodrill. With over 35 years of experience in the drilling industry, 30 of those years in management and 28 of those in West Africa, he is passionate about the future of drilling on the continent. Dave’s goal to establish a leading international drilling company […]

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40 years of Alton Drilling: Setting records while adhering to strict environmental regulations

May 22, 2023

by Cory Ibbotson, Director at Alton Drilling Alton Drilling (Alton) is a New Zealand-based drilling company, and we are making a name for ourselves by embracing innovation and versatility in our approach to drilling and rig manufacturing. We are committed to delivering customized solutions for clients with complex drilling needs, including heli-portable rigs for remote […]

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The traps and pitfalls to be aware of when releasing exploration results

May 22, 2023

by Ivy Chen, Director and Principal, GeoReg Mining & Compliance A company has spent thousands of dollars on mapping, sampling, and drilling and now has some exciting results it would like to share. How might the company go about achieving this, maintaining the momentum and excitement of the discovery, without falling foul of the regulators? […]

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Outcrop sampling along an old lumberjack track before lunch

The call of the wild

May 17, 2023

by Hugo Serra, Project Geologist In order to keep improving the geoscientific knowledge of Quebec, the Ministry of Energy and Natural Resources (MERN) of Canada deploys mapping teams throughout the territory during the summer period, since the weather and temperatures permit it from early June. The acquisition of this field data is primarily aimed at […]

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Drilling under the northern lights: The steep learning curve associated with swapping exploration in the Western Australian outback for interior Alaska

May 17, 2023

by Ashleigh Ball In 2020, I was given the opportunity to swap exploration in Western Australia’s Goldfields for exploration in interior Alaska. I encountered immediate differences. The obvious ones were a mountainous landscape, the need for helicopters, hazardous wildlife and extreme weather. But there were also the less obvious ones that took time to understand […]

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Ranger's automated drill rig

Ranger Exploration Drilling develops an automated RC drill rig

May 17, 2023

by Stuart Baird, General Manager at Ranger Exploration Drilling Pty Ltd Our company, Ranger Exploration Drilling (Ranger), partnered with two Western Australian businesses to innovate on drill rig design and manufacture through the inclusion of technologies being applied across the mining industry. Our company holds progressive attitudes and values to improvement on work practices, and equipment […]

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The importance of instrument calibration – Part 1

May 17, 2023

by Dag Billger, Owner & Business Manager and Duncan McLeod, Owner & Product Manager at Inertial Sensing Downhole survey instruments rely on a range of sensors to produce data that gives position information about a borehole. One class of sensors that has undergone rapid change over recent years are MEMS gyros and inclinometers. In the […]

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Figure 1 - Typical materials used for petrographic and mineralogical examination: A) drill core, B) mine samples, C) regolith (gossan), D) RC drill chips, E) mineral concentrate.

Power of the microscope: Petrographic analysis and mineralogy in the exploration and mining industry

May 17, 2023

by Paul Ashley, Principal at Paul Ashley Petrographic and Geological Services Most minerals industry geologists, after their initial university training, leave behind skills that they learned about the use of the petrographic microscope, much of which at university is aligned towards academic pursuits and not necessarily economic geology. In part, this situation arises due to […]

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MBI Global unveils autonomous drill rig and a partnership with ASDR Canada

May 17, 2023

MBI Global unveiled its VersaDrill autonomous drill rig to the world during PDAC 2023. The KmN autonomous drill is the product of years of research and development, testing, and perfecting. The technology of tomorrow, available today The mining industry is beset by challenges. Labor shortages, skyrocketing operating and material costs, and safety requirements demand constant […]

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Ignus Storm

Exclusive interview with Ignus Storm

May 17, 2023

Ignus Storm dreamt of studying medicine, yet circumstances led him into the world of geology. Ignus holds a Bachelor’s degree in Geology, followed by an Honors degree in Soil Chemistry & Mining Rehabilitation, both from the University of Pretoria. After finishing his Honors degree in 2014, he started working at RHC Mining. He was a […]

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David Rhys in the field

In conversation with David Rhys

May 17, 2023

David Rhys is a Consulting Geologist based in Vancouver, Canada, who applies geological studies with a structural focus to exploration, development and mining. Dave has extensive experience in many deposit types, and especially gold deposits, having worked globally for a variety of clients including both major and junior companies. His focus is on advanced projects […]

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HELM’s drill site in the Golden Triangle

Exploration drilling industry results for 2022: early snapshot

March 15, 2023

With the conclusion of 2022, the performance of exploration drilling companies has begun trickling through the results of publicly listed companies. The annual reports of Geodrill, Major Drilling, and Boart Longyear provide an insight into the state of the industry in preparation for the Coring Magazine annual statistics. Geodrill marks an impressive 2022 fourth quarter […]

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PDAC issues social impact report of mining with focus on indigenous communities and women

March 8, 2023

PDAC recently published its social impact report entitled ‘Studying the social impacts of mineral development projects on indigenous communities.’ PDAC used literature review, a case study, and interviews to analyze the effects of mining on the social infrastructure of the host Indigenous communities. Using a gendered lens, the study established a set of practical strategies for […]

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eGEO 405

We welcome a new idea of the future

February 11, 2023

by the Comacchio team On the path towards a cleaner and smarter future for mining, Comacchio is taking a major step by introducing the first battery-powered drill rig for mining exploration operations. As the world faces a climate crisis, creating a sustainable future for mining is rapidly becoming a priority for the industry. As part […]

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Richard in the field

What makes a geologist? Thoughts on declining discovery rates, and other strange animals – a practising Ni-PGEsulphide geologist’s (heretical) viewpoint

February 11, 2023

by Richard A. Hornsey, Consulting Geologist, Ni-PGE Specialist at Richard Hornsey Consulting (Pty) Ltd I was asked to write a contribution to Coring Magazine by Brett Davis, whom I met on a few occasions during the period at which I was employed by MMG Ltd as Global Ni Project Generation Team Leader. Brett was undertaking […]

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Figure 8

A few structural geology concepts for sediment-hosted Copper exploration A case study from the Cashin Mine in the US

February 11, 2023

by Dr Molly Turko, Structural Geology Expert & Dr Ali Jaffri, CEO at Applied Stratigraphix Sedimentary rocks host approximately 25% of the world’s Copper. Sediment-hosted stratiform Copper deposits were a key target for exploration in the United States that peaked during the 1940-1970s. During these times, explorers were primarily focused on understanding concepts of geochemistry […]

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Helm Drilling

HELM Diamond Drilling: Tackling the harsh northern terrain

February 11, 2023

by Alan McPherson, Owner of HELM Diamond Drilling Breaking into the drilling sector HELM Diamond Drilling (HELM) is bringing highly skilled, new competition to one of Canada’s largest, and most competitive drilling sectors. This prospect would seem to be a difficult task for a new drilling company, but HELM is successfully doing exactly that. Being […]

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DiscovOre Prime

How Fordia Powered by Epiroc and Major Drilling created a faster head assembly

February 11, 2023

by Michelle White, Business Development and Key Account Manager at Fordia Powered by Epiroc Early beginnings: safer, faster and better productivity with DiscovOre Improving drilling performance has always been a priority on mineral exploration sites, so manufacturers have been focusing on ways to do that while still maintaining the safety of drillers. In 2016, Epiroc […]

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Brucejack Mine

Exclusive interview with Harvey Tremblay

February 11, 2023

Harvey Tremblay started his career doing carpentry. He then climbed his way up from service work at drill sites, to exploration services, to working as both a driller and a foreman. He bought an off-the-shelf JKS-300 drill rig from his old boss and launched Hy-Tech Drilling from his home in 1991. After a couple of […]

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Rodren Drilling

Rodren Drilling: Looking to the future

February 11, 2023

by Kevin Norberg, President at Rodren Drilling Ltd. Rodren Drilling (Rodren) was founded by Rod Cyr on June 23, 1977, in Canada with one drill rig and one crew. The mission was to provide the best diamond drilling contractor service in North America. Over the 45 years since, Rodren Drilling has continuously strived to upgrade […]

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Dr Richard Tosdal at Galore Creek

Q&A from the experts: In conversation with Dr Richard Tosdal

February 11, 2023

Richard M. Tosdal received a bachelor’s degree from the University of California at Santa Barbara (USCB) in 1974, an MSc from Queen’s University (1978) and a PhD from the USCB (1988). He has been a Research Scientist at the U.S. Geological Survey or USGS (1978-1999), and the Director of the internationally recognized Mineral Deposit Research […]

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Rig 740-7 in action at Valeriano

Recon Drilling: Breaking records. Again.

February 11, 2023

by Mark Scoles, General Manager LATAM at Recon Drilling SAC Recon Drilling (Recon) recently expanded into the Chilean market and landed at Atex Resources’ flagship Copper-Gold Valeriano project. The Project is located approximately 125 km (78 mi) to the southeast of the city of Vallenar, Atacama Region, Chile and 27 km (17 mi) northeast of […]

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IPI Packers CNC machine

IPI Packers – Three new locations operational in 2022

December 3, 2022

In 2022, IPI Packers (IPI) is swinging back into growth mode following the impacts of COVID-19.  For most of the business, it was a period of more than two years of challenges including static sales, coping with changed and new business environments, lockdowns, travel restrictions and other uncertainties that continued well into 2022. Despite this, […]

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Another day on the rig

October 20, 2022

by Mike Junkins, Core Drill Operator I woke up at 4:11 P.M. on this frigid afternoon in February. The location was West Forks, Maine, US. I was getting ready for a 12-hour night shift on Alder Pond. Yes, we had the rig set up on the ice to hit a specific target. This job was […]

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Devigyro

A thousand reasons why DeviGyro has changed the game

October 20, 2022

by Alex Butler, International Sales Manager at Devico AS In December 2019, Devico released its first downhole gyro system. Less than three years later, an astonishing 1000 DeviGyro units have been produced, far exceeding Devico’s expectations, and clearly documenting how the industry was ready for a new and innovative gyro system. In this article, Alex Butler from […]

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A drill pad with space for a driller's shack

Everything you wanted to know about pad building, but were afraid to ask

October 20, 2022

by Brian Doubt, Owner at Skookum Exploration Services Inc. In today’s exploration industry, heli-portable drills are becoming more common. Governments and stakeholders are looking for ways to cause less disturbance, as we explore for deposits. Drill pads have become an essential part of the exploration process, not only in mountainous terrain but also in remote […]

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Lake Hillier turns pink

Economic potential of salt lakes

October 20, 2022

by Roland Gotthard, Director of Playa One Pty Ltd For geological units that amount to little more than muddy ponds, salt lakes are perhaps some of the most economically important geomorphological features on the planet. This is because of the presence in the Andean Cordillera, of brines containing lithium within some salt lake systems. Some […]

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Gülay in the field

Becoming a female economic geologist in Turkey

October 20, 2022

by Gülay Sezerer K. MScEng, CPG, EurGeol, UmrekCP, Economic Geologist & General Manager at GSK Geology Consulting If I am going to express the relationship between me and the earth sciences as an aphorism, I would call it a butterfly effect. When I was a child, a man brought a chalcopyrite-galena-pyrite-bornite to my father’s shop. […]

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Ortadoğu Drilling: Turkey’s leading diamond drilling contractor

October 20, 2022

by Ahmet Zeki Topdemir, Co-Founder, Mehmet Ruhi Akçıl, Co-Founder, and Sarp Ayken, Drilling Manager at Ortadoğu Drilling History Ortadoğu Drilling was established in 1995 with only two drill rigs and the sole purpose of drilling the deep mineral zones of the Anatolian Peninsula in Turkey, exploring the metallic minerals and coal beds of the country, and […]

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Kelly Johnson at PDAC 2014

21 Questions: Exclusive interview with Kelly Johnson

October 20, 2022

Kelly Johnson has 44 years of experience in the drilling industry, but that almost didn’t happen. His life looked set for a career in banking before a summer job with Midwest Drilling (Midwest) made him change course. Kelly remained with Midwest working in their warehouse for the next 20 years until Major Drilling purchased the company in 1998. Then everything changed. Only several years later, […]

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Dr Sarah Jones in the field

Q&A from the experts: In conversation with Dr Sarah Jones

October 20, 2022

After 23 years of living and working in Australia, I moved back to New Zealand in late 2019 to start my own consultancy business (SJGeology Ltd). I now reside in Cromwell, Central Otago and luckily can do the work from home without the need to travel constantly. I started my working career as an exploration geologist at the Darlot […]

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A bar of silver

Silver is money

October 20, 2022

 by James M. Wise, Shareholder at Pan American Silver Corp., First Majestic Silver Corp. & Newmont Corporation   Silver is money. It has been for thousands of years. The white metal was first widely, or most famously, distributed in the Roman coin called the Denarii. Subsequently, the Spanish empire had for centuries a currency based on […]

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Aurora drill site

Drilling in Kazakhstan: Aurora Quest Services and Nova Drilling complete a successful core drilling project in the Pavlodar region

July 8, 2022

by Doskhan Zhumakhanov, Project Manager at Aurora Minerals Group LLP  In one month (February – March 2022), the drilling Division of Aurora Minerals Group (Aurora Quest Services, together with Nova Drilling) completed a core drilling project for geotechnical and hydrogeological studies without a single LTI and in accordance with the quality requirements. The work was […]

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TactEx facility

TactEx Industries X-10 surface diamond drill

July 8, 2022

by James Patterson, Co-Founder at TactEx Industries Vancouver Island may not be the first place that comes to mind when you hear about exploration mining equipment. The four founders of TactEx Industries (short for tactical exploration) call this place home for its diversity of recreational activities and easy climate. It never hurts when you can […]

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SPT Gyro Master

Smart mining vs. quality control – Relationship between the deviation of boreholes and investment in mining projects

July 8, 2022

by Orlando Ramirez, Founder & CEO, Stockholm Precision Tools AB – Sweden (SPT) When it comes to the exploitation of ore bodies, the accurate measurement of trajectories (borehole surveys) – both in the exploration and production phases – is a factor that those responsible for geology, drilling and planning departments must consider. The main factors […]

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Kasi in the field

Q&A from the experts: In conversation with Dr Addepalli Kasiviswanadham

July 8, 2022

Dr Addepalli Kasiviswanadham (Kasi) is an Associate General Manager of the exploration department of Vedanta Exploration Global Company (VedEx) based in India. He has over 21 years of experience in mineral exploration, focused on mine- to regional-scale geology, including three years of research experience.  Prior to VedEx, he was working for Geomysore Services India Pvt. […]

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Top exploration drilling contractors for 2021 – Statistics of diamond drilled meters

July 8, 2022

  Disclaimer Coring Magazine is proud to present brand new ‘Top mineral exploration drilling contractors’ statistics for 2021 and 2020, classifying the leading diamond drilling contractors in the industry according to the number of meters drilled by them. Unlike the previous Coring statistics that contained total number of drilled meters, this time Coring Magazine filtered […]

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Darren in the field

21 Questions: Exclusive interview with Darren Thomson

July 8, 2022

Darren Thomson was born in Australia and after a stint at a butcher’s shop during his teenage years, he found himself in Boart Longyear in 1988. He began his career as an offsider and rose through the ranks becoming driller, supervisor and eventually manager. Necessity forced Darren to learn more about drilling fluid additives and […]

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Strike Drilling Site

DDH1: Australia’s largest mineral exploration drilling contractor

July 8, 2022

by Sy Van Dyk, CEO and Murray Pollock, Co-founder and Non Executive Director at DDH1 Limited  Based in Perth, Western Australia, DDH1 Limited (DDH1) commenced operations in July 2006 with one drill rig. Today, just sixteen years later, DDH1 is by any metric Australia’s largest drilling contractor by number of operating rigs, meters drilled, revenue, […]

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Digitization of the mining sector: major challenges and drivers 

June 1, 2022

By Orlando Ramirez, Founder & CEO of Stockholm Precision Tools AB Visit Stockholm Precision Tools AB on PDAC2022 at Booth 905 in the South Hall 44% of companies in the sector are looking to increase their investment in digitization in the coming years   In 2021 SPT launched SmartCloud™ which allows the mining industry to synchronize its mining […]

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Multistage open hole piezometers in one or multiple boreholes

The use of mineral exploration drilling to kickstart hydrogeology data collection for Pre-Feasibility mining studies and beyond

April 17, 2022

by Kym L Morton, CEO and Consulting Hydrogeologist at KLM Consulting Services Pty Ltd Valuable groundwater information becomes available as soon as drilling starts, particularly during early mineral exploration campaigns. Often groundwater information is not collected because its value does not become evident until the exploration sites become under scrutiny for mine development. Drilling and […]

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Fig. 2

Six concepts to keep in mind when exploring structurally controlled mineralizations

April 17, 2022

by Luca Smeraglia, PhD, independent structural geology consultant and structural geologist at the National Research Council of Italy As a structural geologist born and raised in Italy, most consulting and research projects associated to structural geology are supplied by the oil and gas industry. With only a few economic geology courses taught in Italian universities […]

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Mike in South Carolina

A day in the life of a driller

April 17, 2022

by Mike Junkins, Core Drill Operator Stepping outside the motel’s squeaky door I breathed in the twenty-degree Fahrenheit air (- 6.7ºC) and became fully awake. My Matterhorn boots made a crunching sound in the three inches (7.6 cm) of fresh snow. I made my way across the parking lot to the Dodge crew cab. The […]

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Azidrill  N-BTK, N-size Directional Core Barrel collects BTK-size core samples

AZIWELL’s AZIDRILL N-BTK consolidates the company’s position as a world leader of directional core drilling tools

April 17, 2022

by Nils Ivar Iversen, Managing Director of AZIWELL AS, Norway AZIWELL is pleased to introduce the AZIDRILL N-BTK Directional Core Barrel (DCB). This innovative new design allows for the collection of a core sample closer to the industry standards in conventional diamond drilling and brings directional core drilling to exciting new heights.   AZIWELL is a […]

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21 Questions: Exclusive interview with Tony Graham

April 17, 2022

Anthony ‘Tony’ Graham is an expert in drill bits with over 60 years of industry experience. He was born in South Africa in 1940. He graduated the University of Natal with a BSc Hons in Geology. Tony then began working as a field geologist with Chartered Exploration (a division of Anglo American) in Lusaka, Northern […]

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Geosol drill site

68 Years of GEOSOL

April 17, 2022

by Geosol Team With benchmark drilling services in Latin America, Geosol seeks excellence in mineral exploration in Brazil and overseas.  Rich history  In 1953, foreign capital was once again allowed in Brazil, and a new constitutional order of the national mineral sector would also make it the year GEOSOL was founded by Civil and Mining […]

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The Diafor drill site

Drilling through hostile grounds

April 17, 2022

by Mathieu Dionne, President and CEO at Diafor Diafor Inc. (Diafor) is a diamond drilling company specializing in surface operations and based on the world-class Cadillac Break in the Abitibi region in Quebec, Canada. The company is new, but it is very well organized, has experienced employees and is building a great reputation.   In the […]

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Mine site

Tect Geological Consulting: An industry-leading specialist in Structural-Economic Geology

April 17, 2022

by Dr Ian Basson and Dr Corné Koegelenberg, Principal Members and Michael McCall, Senior Geoscientist Tect Geological Consulting (Tect) is an industry-leading specialist in Structural- Economic Geology with well-established experience across the world, and a particular focus on Africa and the Middle East. Over the last 22 years, Tect has addressed over 180 projects in […]

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Beau in 2005

Q&A from the experts: In conversation with Beau Nicholls

April 17, 2022

Beau is a geologist with over 28 years of experience. Beau started from a remote farm in the Wheatbelt of Western Australia and completed a Geology degree at Western Australian School of Mines (WASM) in Kalgoorlie in 1994.  He then spent over five years at the Telfer gold mine, before starting an expatriate career working […]

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MK-2 Rod Feeder

MK-2 Rod Feeder (patent pending): The independent rod handling system that eliminates all hands-on steel operations for diamond drilling

January 23, 2022

by Quentin Dulake, Global Sales Executive at Exploration Drill Masters Chile S.A. Exploration Drill Masters (EDM) MK-2 Rod Feeder is the latest release in rod handling technology for surface diamond drilling. The MK-2 follows on from the original MK-1 Rod Feeder, which has been immensely popular with well over 120 units sold since its release […]

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Explomin drill rig

Explomin’s global expansion plan

January 19, 2022

by Peggy Silva Mayser, Commercial Manager at Explomin Perforaciones Throughout the 20 years of its existence, Explomin has proven that business know-how is not enough to achieve success. Although the most important ingredients are the commitment and shared vision of people, their energy made a winning formula in order for Explomin to have a remarkable […]

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HC5000MAX

Meet MAX: The 8000 lb beast that drills up to 3100 meters N-size

January 19, 2022

By Rishi Budshah, CMO at Hydracore Drills The story about HC5000max (Max) started when one of our existing customers requested a deep hole core drill that was truly heli-portable, meaning lifts under 2000 lb (907 kg). This request aligned with our market research showing that more holes were being drilled beyond 2000 m (6562 ft) […]

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Figure 1 arc segment

A technical note on dogleg severity

January 17, 2022

by Dag Billger, Owner & Business Manager and Duncan McLeod, Owner & Product Manager at Inertial Sensing In recent years, we have received an increasing number of questions concerning how dogleg severity (DLS) is defined, why it does not look smooth in plots, and if it can be used as a survey quality assurance parameter. […]

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New Mannesmann machine

Steel-made precision tubes for drill rods

January 14, 2022

By Steffen Zimmermann, Head of Technical Sales/Application Engineering; Sebastian Schulze, Application Engineer; Corentin Lorc’h, Quality Manager and Pierre-Jean Marchais, Process Engineer at Mannesmann Precision Tubes Precision tubes made of steel are widely used for exploration or blasthole drilling. But to keep the drilling process running and the direction of drilling straight, tubes must behave elastically […]

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The Ikkari property, Finland

Rupert Resources: The benefits of aggressive drilling

January 14, 2022

by Jane Lockwood, Spotlight Mining  Aggressive spending on drilling during exploration is usually a good strategy for advancing a project quickly, and nowhere demonstrates that fact better than Rupert Resources’s (Rupert) (TSXv:RUP, OTCQX:RUPRF) almost 4 million oz (113.4 tonnes) Ikkari gold discovery in Finland. This project is remarkable not just for its size and quality, […]

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RME engineers

From Russia with core strength: RS-90 drill rig manufactured by Rusmining Export

January 14, 2022

By Rusmining Export Press Office The revenue from mining operations is usually a large part of any country’s budget. Therefore, the top priority task is reprocessing and building up the mineral resources base. Exploration of new deposits, as well as their commercial development, requires innovative drilling equipment. After the break-up of the Soviet Union and, therefore, the […]

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Geodrill rig

Geodrill: Africa’s preferred drilling partner

January 14, 2022

by Dave Harper, CEO at Geodrill  Geodrill is a well-established drilling contractor and a preferred partner in West Africa. The company prides itself on investing in modern equipment and world-class operations to supply its clients with a ‘one-stop’ drilling solution. As a purpose-led company, their expertise, experience in the field, highest maintenance, Health, safety, environment […]

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Dr Steiner in Norway

Q&A from the experts: In conversation with Dr Benedikt Steiner

January 14, 2022

Dr Benedikt Steiner graduated from the University of Tübingen, Germany with a ‘Vordiplom’ (pre-diploma) in Geology in 2007, which was promptly followed by a Master of Science degree from Imperial College London, and subsequently a PhD focusing on the use of stream sediment geochemistry and automated mineralogy in the exploration of Lithium Cesium Tantalum (LCT) […]

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21 Questions: An exclusive interview with Mario Rouillier

January 14, 2022

Mario Rouillier studied in Abitibi-Témiscamingue, earning a degree in Business Administration. His drilling career began more than 39 years ago when as a teenager, he started working in his father’s company Rouillier Drilling. Mario moved up the ranks as driller’s helper, driller, foreman, general manager and finally as owner and president. In 1994, Mario began […]

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Barama-Waini District, Guyana

Gold fever in Guyana

January 14, 2022

by Ian Foreman, Principal at Foremost Corporate Services  Author’s note: this article is intended for information purposes only. The reader is encouraged to perform their own due diligence if they are interested in investing in the company.  An exciting new gold player from Vancouver, Canada – Alerio Gold Corp. (Alerio) (ALE:CSE) – has recently acquired highly […]

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Diamec Smart 6M

Drilling into the autonomous future of the industry

October 6, 2021

by Maksim Mayer, Editor at Coring Magazine Artificial Intelligence (AI) offers a convenient solution to the ongoing qualified driller shortage in North America and elsewhere. Almost all of the leading experts Coring Magazine has talked to in the past years foresee automation becoming central to exploration drilling sooner rather than later. But in the current […]

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Daily monitoring of drilling operations

Servitec Foraco: The path to optimized diamond drilling

October 5, 2021

by Rafael Echebarrena, Brazil Operations Support Technical Manager at Servitec Foraco Servitec Foraco were awarded a diamond drilling project located North of Brazil. The project involved an Atlas Copco CS14 drill rig. The task Search for operational excellence in a new diamond drilling project (H-size/N-size) with the objective of reaching all goals with safety, high […]

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Recon Drilling: Reaching new depths at the Santander mine in Peru

October 5, 2021

by Marc Scoles, General Manager at Recon Drilling SAC Recon Drilling (Recon) are proudly drilling for Trevali Mining at their Santander mine, some 200 km (125 mi) away from Lima, Peru. The zinc, lead and silver underground mine consists of a 2000-tonne-per-day processing mill, a conventional sulphide flotation mill, and associated infrastructure. Recon’s project has […]

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DeviCloud_drill site

DeviCloud: A new standard for planning and monitoring drill holes

October 5, 2021

by Rune Lindhjem, Senior Technical Advisor at Devico AS Recent years have seen a big shift towards digitalization and wireless communication in mining operations worldwide. Network access has become common even in the underground sector, improving planning, scheduling and overall daily operations. With live communication and data transfer between workers, progress can be shared, issues […]

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Drilling on top of Afghanistan's roof

Drilling on top of Afghanistan’s roof

October 4, 2021

by Ibrahim Jafari, President & CEO at Afghanite Company Afghanite Company (Afghanite) is the leading engineering service provider for the mining and infrastructure projects of Afghanistan. Its name comes from the mineral discovered for the first time in 1968 in the Badakhshan Lapis mines in Afghanistan. With many monumental track records, it has a very […]

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Brett near Brucejack

Q&A from the experts: In conversation with Dr Brett Davis

October 4, 2021

Dr Brett Davis graduated from James Cook University, Australia with a Bachelor’s in Geology in 1986, which was followed by a 1992 Doctoral degree in Structural Geology from the same university. Between his Bachelor and Doctorate, Dr Davis worked briefly at the Mt Isa Mines as a production geologist. Since then, Brett has held prestigious […]

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Lockdown, rocks and two rotating barrels

October 4, 2021

Another Day in Paradise by Gemma Lawson, Exploration Geologist at Origin Exploration Ltd. Any geologist that has worked in Africa, is familiar with the harsh conditions and an ever-changing barrage of unique challenges. In March 2020, Côte d’Ivoire, along with multiple other African nations, closed its international borders amid the rising COVID-19 pandemic. A plethora […]

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Ortadoğu drillsite Pakistan

21 Questions: An exclusive interview with Sarp Ayken

October 4, 2021

Sarp Ayken was born in 1977 in Izmir, Turkey. He entered the Geological Engineering Department of Middle East Technical University in 1995. After graduation, he started working as a Site Engineer at Ortadoğu Sondaj (Ortadoğu) in March 2001. He has been with the company ever since. In these 20 years, Sarp has been involved in […]

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Yamana Gold Drill Plan

Designing resource drilling as an investment decision and not a cost

June 8, 2021

by Andrew Dasys, CEO at Objectivity.ca If you could, would you take the opportunity to de-risk a mineral property faster: without changing the qualified person’s sampling requirements, without affecting existing drilling accuracy, without adding new constraints to the production department, without needing any new capital investment, and while decreasing in-field risks at the rigs. Not […]

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Lipad

The new way of survey

June 8, 2021

by Christian Martin Spannagel, Sales & Marketing Manager at LITEF Has it always been your dream to hold a device in your hands that shows your exact orientation? Regardless of where you are and when? Unless you happen to be at either of the arctic poles, we can make your dream a reality. Outstanding tasks […]

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MBI Global VersaDrill headquarters

MBI Global & VersaDrill grow their strategic alliance into a merger

June 8, 2021

by Daniel Misiano, President at MBI Global After seven years of a strategic alliance, we are proud to announce that MBI Global and VersaDrill Canada merged in early May, 2021. The new entity, under MBI Global, will benefit the market with a complete offering of capital equipment (VersaDrill) and consumables (MBI Global) for the mineral […]

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Alan Wilson in the field

Q&A from the experts: In conversation with Dr Alan Wilson

June 8, 2021

Dr Alan Wilson graduated from Edinburgh University (UK) with a Bachelor’s degree in Geological and Earth Sciences, immediately followed by a Master’s in Exploration and Mining Geology from the University of Leicester (UK) in 1991. Ten years later, he built upon that with a Doctoral degree in Economic Geology at the University of Tasmania (Australia), […]

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3D wireframe of Ewoyaa

The Ewoyaa Lithium Project

June 8, 2021

by Iwan Williams, Exploration Manager Ghana, Lennard Kolff, COO & Abdul-Razak Shaibu Ballah, Senior Geologist Ghana at IronRidge Resources Ltd. Coinciding with increased interest in lithium and its application in the stored energy space, IronRidge Resources Ltd. (AIM:IRR) commenced a top-down desktop review of the Birimian terrain of West Africa, following the discovery of the […]

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Sierra Madre

Metamorphic Mexico: The Sierra Madre Occidental

June 7, 2021

by Jane Lockwood, Spotlight Mining Abundant gold and silver in the Sierra Madre Occidental have driven colossal enterprise over the last two centuries, with Mexico standing in 2017 as the world’s largest silver producer (200 Moz/year) and eighth largest in gold (125 t/ year), chiefly sourced from this mountain range. This is in the face […]

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Hydracore head

Taking an innovative approach to solve old problems

June 7, 2021

by Jeremy Lauzon, President at Hydracore Drills Ltd. Typical exploration drill heads have not advanced in design over what Boyles, Longyear and others supplied in the 1970s. Why buy a new drill that has a drill head based on technology that is 50 years old? Drillers are used to the problems with these drill heads, […]

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In Focus: Capital Drilling – Africa’s largest diversified driller

June 7, 2021

by Brian Rudd, Executive Director at Capital Drilling Ltd Exploration and mining companies need skilled drilling contractors who operate professionally and deliver quality sample results, as it is these samples that ultimately guide key decisions, often with significant financial implications. Since its inception in Tanzania in 2005, Capital Drilling (Capital) has built a reputation for […]

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Bryson Drilling’s ‘Ace’ team: Defeating extreme weather and harsh terrain to complete a challenging multi-client project

June 7, 2021

by Ryan Sunderland, Shareholder and Supervisor at Bryson Drilling Ltd. This winter season Bryson Drilling (Bryson) was awarded a multi-client project for Terralogic Exploration Inc. on behalf of SKRR Exploration/ Taiga Gold Corp. on the remote Irving/ Leland property in Saskatchewan, Canada, located about 60 km (37 mi) away from the nearest access point. The […]

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21 Questions: Exclusive interview with Sylvain Brisson

June 7, 2021

Sylvain Brisson was born and raised in a small community in Quebec, Canada. After college, he spent five years as a welder fitter, before being offered a job working on the ‘drills’ in 1988. Initially, he wanted to return to university, but quickly he got hooked and never looked back. He started at the bottom […]

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Red Rock Drilling: The journey to carbon neutrality

March 4, 2021

by Henry and Johnathan Taitt, Directors at Red Rock Drilling Pty Ltd Creating a lasting legacy takes courage and commitment but when it comes to negating climate change, the process is not as challenging to execute as you may think. The example of Red Rock Drilling is a case in point when it comes to […]

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Challenge and opportunity in the mining industry of Ecuador

March 4, 2021

by Merlin Marr-Johnson, Executive Vice President at Salazar Resources Ltd. Disclaimer: This article contains the personal beliefs and opinions of its author, and not the ones of Coring Magazine. Coring remains neutral, assuming no responsibility for the author’s overall and political points of view thus can not be held liable for any of the information presented […]

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Sample preparation

The value of sample preparation when using portable XRF in mineral exploration

March 4, 2021

by Richard Belcher, Consulting Geologist at RWB Exploration Ltd and James Cleverley, Global Products Manager-Geosciences at REFLEX Instruments Europe Ltd/IMDEX Ltd Portable X-Ray Fluorescent (pXRF) instruments have been utilized in mineral exploration for almost 20 years and are a common sight in field camps and mine sites the world over. Approaches to their use generally […]

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CKC Ultralight: Beating extreme weather conditions with fabric drill shacks

March 2, 2021

by Cody Campbell, Founder & President at CKC Ultralight The Ultralight Fabric Drill Shacks being developed by CKC Ultralight were first conceptualized in 2012 by the team at Ridgeline Diamond Drilling. Ridgeline was a small, family-owned and operated contractor that focused on completing remote, heli-portable diamond drill projects that required crews to be comfortable working […]

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CX 2520

Comacchio launches a new range of drill rigs for a new era of safe exploration operations

March 2, 2021

by Comacchio’s editorial team Established in 1986 in Italy, Comacchio is one of the world’s leading manufacturers of hydraulic drilling rigs. Initially focused on the production of small and medium diameter drilling rigs for geotechnical site investigation and foundation construction, the family-owned company has expanded their range throughout the years to embrace the most diversified […]

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Experiences in drilling in extreme cold

March 1, 2021

by Matti Rautakoski, Business Manager at Oy Kati Ab Kalajoki You need both equipment and know-how, to survive and even flourish in a cold environment. If you miss either, you are going to jeopardize the success of the entire project. You must understand the perils of the combination of snow, ice and darkness, the risks […]

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Q&A from the experts: In Conversation with Mark Saxon

March 1, 2021

Mark Saxon is an Australian geologist, who graduated from the University of Melbourne, Australia in 1991 with a BSc (Hons) degree. After his graduation, Mark spent nine years (from 1992 until 2001) working at Pasminco Ltd, formerly the world’s largest producer of zinc. Afterward, he became the CEO of Tasman Metals Ltd, a Scandinavian Rare […]

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Technical Interview with Dag Billger and Duncan McLeod

March 1, 2021

  Together, Duncan McLeod and Dag Billger, specialists in inertial micro-sensor systems (MEMS), have more than 30 years of experience of developing commercial positioning and tracking systems. Duncan and Dag have a strong focus on wellbore survey instruments. They work with a wide range of applications, which are relevant for the following fields: Mining, Oil […]

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In Focus: Major Drilling – Global leader in specialized drilling

March 1, 2021

by Kevin Slemko, Corporate Business Development Manager, Major Drilling Group International Incorporated Right now, the mining industry is facing a problem. Declining exploration activity, and supply deficits expected within five years, have driven record pricing for commodities—especially gold and copper. Unfortunately, new deposits are harder to reach and are in greater demand than ever before. […]

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State of the market: Mining Q2-2020 Understand COVID-19 impacts – Metals & mining sector

December 8, 2020

by S&P Global Market Intelligence Mining industry capitalization and Exploration Price Index (EPI) increased In Q2, mining industry market capitalization rose 32% to USD 1.393 trillion. The Exploration Price Index (EPI) was at 135.9, its highest level since March 2013, driven mainly by its significant weighting to gold and the positive gold price performance in […]

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Geotec drill site

Safer, cleaner and more efficient diamond drilling

December 1, 2020

by Raúl G. Lyon, Vice President at Geotec Boyles Bros. S.A. This article discusses the successful development and implementation of new technologies, developed by Geotec Boyles Bros. (Geotec) in collaboration with selected Chilean vendors and manufacturers of diamond drilling products and equipment. The collaboration helped Geotec optimize their work process and contributed to safer, more […]

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Swick Mining

Swick Mining Services: Precision beneath the surface

December 1, 2020

by Nick Rossides, General Manager Operations – Global, Swick Mining Services The increased market requirement for deeper diamond drill holes in the underground environment has become much more prevalent with mining companies globally. The opportunity to reach exploration target depths from an underground platform is entertained by many miners and proving to be both cost- […]

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Q&A from the experts: In conversation with Dr John-Mark Staude

November 19, 2020

Dr John-Mark Staude graduated from Pomona College, US with a Bachelor’s degree in Geology in 1987, which was quickly followed by a Master’s degree in Economic Geology at Harvard, US. John-Mark’s academic achievements continued as he went on to acquire a PhD in Economic Geology at the University of Arizona, US, focused on the mineral […]

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The true nature of discovery 

November 17, 2020

by Doug Ramshaw, President at Minera Alamos Inc. What is a real exploration discovery? A discovery hole, even when it can not be classed as such, is what folks too often rely and pin their high hopes on. That hole can cause excitement both in and outside a company, and perhaps even a resulting stock […]

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21 Questions: Exclusive interview with Grenville Whyte 

November 17, 2020

Grenville Whyte was raised in an off-the-grid homestead near Kirkland Lake, Ontario. He was the third child of four and back then, the implementation of school buses saved him from being home-schooled. In 1960, he wanted to go to the Arctic and a suggestion from his teacher helped him land a mechanic’s job there. Just […]

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Global Drilling and Exploration Group: Grounded in South-East Asia, but ready to take on the world 

November 17, 2020

by  John Horne, Founder and Co-Owner of Global Drilling & Exploration Group Pte Ltd Established in 1993 in Indonesia, the re-badged Global Drilling and Exploration Group (GDE) has now spread its footprint throughout South-East Asia and into Australasia and Africa. While not in the realm of the largest drilling companies yet, the privately-owned GDE Group […]

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Recommended and legal depth capacity of drill rigs 

November 17, 2020

by Colin Rice, Managing Director at Colin Rice Exploration and Training (Pty) Ltd. All manufacturers of diamond core drilling machines provide specifications that relate to the depth to which a particular machine can drill. Often, these specifications are confusing because the depth capacities claimed are substantially greater than the ‘legal’ depth capacity of the drill. […]

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Innovation in exploration

October 30, 2020

By Eric Eckberg, Geologist Innovation and creativity are at the heart of almost everything we do as explorationists and miners. I’ve yet to hear about a program that does not involve creativity in some way, except for perhaps failed campaigns. The following series of anecdotes is a quasi-scientific recollection of my time as the Senior […]

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Q&A from the experts: In conversation with Drew Craig

October 23, 2020

Drew Craig graduated from the University of St. Andrews (Scotland) in 1997 with a Bachelor’s degree in Geology and in 1999, gained a Masters from the Royal School of Mines at Imperial College, London. As a mineral exploration and project management specialist, Drew has a wealth of experience, gained from multiple projects focused on various […]

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Battery metal potential of the Lovelock Mine, Nevada

October 19, 2020

by Mitchell Smith, President & CEO and Timothy Strong, Project Development Manager at Global Energy Metals Corporation Nevada is referred to as the ‘Silver State’ and is deemed both a national and international gold and silver province. Annually, Nevada yields up to 5 % global gold production and 80 % of the US’ production. Annual […]

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Drillware closes the loop on wasted water with the Environ SRS Centrifuge

October 15, 2020

by Liam Cooley, Manufacturing at Drillware Under typical conditions in the field, it can take up to 577 600 L of water to complete the average 1000-meter N-size hole. In remote or sensitive areas, the costs associated with delivering this water are substantial, the logistics are challenging, and the process is unnecessarily wasteful. With this […]

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Things will never be the same

October 14, 2020

by Louis Fourie, Owner & Principal at Terra Modelling Services Inc. A few months ago, there were industry indications that many commodities were beginning to return to a growth phase. Companies were positive, drill rigs were busy, and analytical labs were being inundated with samples. How quickly things change. The question remains as to how long […]

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Mudex simplifies lost circulation material

October 14, 2020

by Dave Williams, Director at Mudex X FRAC (DD) was formulated to streamline lost circulation remediation, minimize lost production time, and reduce the amount of additional drilling fluid to displace lost circulation material (LCM) from the rod string. Inspired by oil field lost circulation technology, X FRAC (DD) contains a mix of dissimilar sized materials […]

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Redmoor Project: Discovering a world-class underground tin-tungsten resource

October 6, 2020

by Samuel Bolton, Exploration Geologist at Cornwall Resources Limited Located in east Cornwall, UK, the Redmoor tin-tungsten-copper deposit has been the focus of recent and highly successful exploration by Cornwall Resources Limited (CRL) – a subsidiary of UK-listed Strategic Minerals PLC. Redmoor’s success demonstrates the potential for substantial discoveries in one of the world’s most […]

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Built to explore: Multi-Power’s compact, Portable Centrifuge Mud Cleaning System

September 14, 2020

by Thomas Ulm, Sales Manager at Multi-Power Products Ltd. Remote mineral exploration drilling is difficult. Rig mobilization, supply chain logistics, crew transportation, equipment maintenance, and water supply each pose potential risk through unforeseen delays or unexpected trials. Such is life operating off the beaten path. The phrase, ‘if it was easy, everyone would do it’ often […]

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What happens down the hole, stays in the core

July 17, 2020

by Juan-Luis Valenzuela, Regional Manager at Matex Drillers and geologists have long agreed to disagree over what takes priority at site – hole completion versus optimal core recovery and sample. But something we all agree on is that hole stabilization is critical, irrespective of focus or priority. With the right products on hand, mineral exploration […]

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A grounded approach to wellbore stabilization

July 13, 2020

by Walker Dillabough, Drilling Fluids Manager at Di-Corp When we consider all the variables that can add to or subtract from the successful completion of a drilling program, one universally stands out: ground condition. Millions of meters of exploration has surely given us a healthy respect for the fact that ground is different everywhere and […]

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Unearthing 15 of the industry’s most successful drilling contractors: Based on 2019 results

July 13, 2020

Top 15 drilling contractors by mineral exploration revenue, (million USD) Top 15 drilling contractors by number of mineral exploration drill rigs *Coring was not provided with Capital Drilling’s and Orbit Garant’s mineral exploration revenue and the number of rigs devoted only to this type of drilling. For that reason, we have included the overall FY2019 […]

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Exclusive interview with Chris Hopkins

July 9, 2020

Chris ‘Hoppy’ Hopkins grew up on New South Wales’ south coast, and later in Sydney’s western suburbs, yet a relocation to Perth, Western Australia at age 11 proved the ideal change of scenery. If in search of Chris, you’ll find him in one of three places – underground, in the great outdoors, enjoying time fishing, […]

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Mitchell Services: 50 years and spinning

July 9, 2020

by Andrew Elf, CEO at Mitchell Services Limited Peter and Deidre Mitchell had less than AUD 200 to their name after buying a Mayhew 1000 Drilling Rig for AUD 11 500 in 1969 and even less after it broke down at the front gate on the way to its first job. Fifty years later, Mitchell […]

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Comparing multishot & continuous surveys using the TwinGyro™

April 24, 2020

by Duncan McLeod, Product Manager and Dag Billger, Business Manager at Inertial Sensing One AB Running continuous gyro surveys while conducting borehole surveying within mining applications is becoming increasingly popular. There are multiple reasons for this trend, but chief among them are the following four points. Considerably faster survey time when compared to traditional multishot […]

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Directional and wireline core drilling Jwaneng diamond mine

April 22, 2020

by Filip Slavtchev, Sales Representative at MICON-Drilling GmbH German-based global drilling company, MICON-Drilling GmbH (MICON) offers directional drilling and coring services, including development and manufacturing of complete drilling bottom hole assemblies (BHAs). Projects are unique and therefore tailored to meet client expectation – as was the case with a Botswana diamond exploration project in collaboration […]

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Northwest Machine Works, Inc.’s NWL rod and BW casing cutter prototype

April 15, 2020

by Gina Rinderle, Project Coordinator & Safety Officer at Northwest Machine Works, Inc. Northwest Machine Works, Inc.’s internal casing cutters are machined and assembled using simple, unique and effective design. Three cutters have proven to be market mainstays – the CCNWC (3 in or 7.62 cm), CCHWC (4 in or 10.16 cm), and CCPWC (5 […]

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DeviGyro miniature survey tool

April 15, 2020

by Rune Lindhjem, Product Manager at Devico AS DeviGyro’s 125 cm overshot design Borehole surveying technology has developed and improved rapidly in recent years – driven by an increased focus on accuracy, efficiency and safety, combined with the always increasing need of knowing the borehole’s true trajectory. This applies to all drilling industries and boreholes […]

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Exclusive interview with Ili Cava

April 14, 2020

Ili Cava was born on the small island nation of Fiji, before moving to the world’s largest island of Australia in 1984. A graduate of Queensland’s Townsville Grammar School, Ili worked as a driller for close to a decade, traveling across Australia, and to Europe and South East Asia – relishing every opportunity to learn […]

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PDAC 2020: An album of highlights

March 11, 2020

by Martina Samarova, Executive Officer at Coring Magazine The 88th Prospectors & Developers Association of Canada (PDAC) convention took place March 1-4 in the heart of Toronto. As usual, professionals from far and wide gathered to capitalize on the annual event’s myriad opportunities. The Coring team captured what we believe are PDAC 2020’s interesting moments, […]

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Taking to the skies to unearth anorthosite: Heli-portable diamond core drilling with Cartwright Drilling Inc. & Greenland Anorthosite Mining ApS

February 28, 2020

by Jelle Terpstra. P. Eng. (Retired), President, Cartwright Drilling Inc. On August 22, 2019 Cartwright Drilling Inc. was awarded a 1500- to 2000-meter diamond core contract by Greenland Anorthosite Mining ApS. The Majorqap Qava project is located 125 km south of Nuuk, Greenland’s capital. The contract posed a challenge, despite Canadian-based Cartwright Drilling’s 16 years’ […]

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Remote site drilling with Hubbard Perforaciones

February 19, 2020

by Lance Hubbard, General Manager at Hubbard Perforaciones Drilling in the Andes Mountains or South American jungle is challenging due to altitude, terrain, extreme weather and accessibility – or lack thereof, to remote drilling sites. Before starting a drilling program at a location deemed inaccessible, drilling contractors must consider many factors, and the most crucial […]

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Granite’s Layne and IDS: 138 years of innovation

February 18, 2020

by Layne, A Granite Company Identification, definition and development of base and precious mineral deposits drives demand for drilling services. Layne, A Granite Company delivers quality samples that accurately reflect the location and orientation of mineral deposits. Founded 138 years ago, Layne is one of the world’s largest, most experienced water and mineral service companies. […]

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Exploration drilling in Otavi Mountain Land, Namibia

January 22, 2020

by Johan Coetzee, Managing Director at Adamas Drilling and Exploration Adamas Drilling and Exploration (‘Adamas’) started its first drilling project in 2013. At that time, the company had only one core drill rig, an Atlas Copco Diamec-262, and an old Toyota Land Cruiser pick-up, a drilling team consisting of an operator, a core writer, two […]

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From wilderness to resource—and those who ‘Make it so!’

November 7, 2019

by Liam Hardy, Operations Director at Spotlight Mining This May (2019) a new set of faces appeared on the Golden Triangle circuit. They were keen, enthusiastic, and financially backed to take a shot at the infamous region’s riches, but, planning a hand-son intensive drilling campaign takes more than enthusiasm. Crystal Lake Mining (TSXv: CLM) is […]

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Q&A from the experts: In conversation with Michael Thomsen

November 7, 2019

Michael Thomsen graduated from the University of Wisconsin-Milwaukee in 1974 with a bachelor’s degree in Geology and in 1977 gained a master’s from the University of Wisconsin-Madison. As a mineral exploration geologist with world-class companies, including Newmont Mining Corp, Freeport-McMoRan Inc, and Gold Fields Mining Corp, Michael has visited and evaluated mineral resource opportunities in […]

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Reopening a historic mine

November 7, 2019

by Graham Peterson, Geologist, Black Fox Mining LLC and GS Mining Company, LLC Gold Rush in Colorado and a New Mining Era In January of 1859, gold was discovered in Idaho Springs, Colorado. Several months later it was discovered in Central City, Colorado leading it to become known as the ‘Richest Square Mile on Earth.’ A […]

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Titeline Drilling Underground: Robotics and automation are the future

November 6, 2019

by Bill Ricciardi, CEO at Titeline Drilling Pty Titeline Drilling (‘Titeline’) has been operating from its base in Ballarat Victoria for over 17 years, and continues to grow, steadily meeting the demands of a diverse customer base. The company specializes in surface and underground diamond drilling, with the surface business focusing on deep directional drilling […]

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21 Questions: Exclusive interview with Craig R. Lavrick

November 4, 2019

It is rare for an individual to attest to a career of realizing true, impactful and sustainable industry change – preventing harm, saving time, money and most importantly – lives, while maintaining sensitivity to diverse cultural, geographical and political environments. Craig Lavrick is one such individual, and he’s far from hanging up his revered hard […]

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45 years of geology and mineral exploration: The personal journey of a project generator

August 1, 2019

by Jean Lafleur, P. Geo. (OGQ, APGO), Mineral Exploration and Management Consultant – Blainville (Quebec) Canada at PJLEXPL Inc. Life’s journey is challenging. Whether planned or unplanned, intentional or happy-golucky, or shortened or long, life offers a variety of trials and experiences in both personal and professional situations. My wish is that your lives are […]

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Q&A from the experts: In conversation with Graham Brown

July 26, 2019

Graham Brown was educated in Glasgow (Strathclyde University), graduating with a BSc in 1980. He gained his MSc at James Cook University, Australia in 1984. He has been a Fellow of the SEG since 1999 and participated in the Colombia as well as the Duke Business Leaders Programs in 2004 and 2007. In 2013 he […]

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Geops-Bolkan Drilling Services perform large-diameter drilling in the Balkans

July 17, 2019

by Ilian Valkov Eng., Executive Manager at Geops-Bolkan Drilling Services Ltd One of the challenges of modern geological research is to identify the quality features of valuable resources at an early stage. The extraction of sufficient material for the initial technological research provides an opportunity to obtain critical data about the properties of the prospective […]

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21 Questions: Exclusive interview with Sandra Lindberg

July 15, 2019

Sandra Lindberg is from Norsjö, in northern Sweden. She graduated in car mechanic studies in 2005 and after having her first child in 2007 embarked on a mining internship at Bergteamet (large Swedish mining services provider) that placed her in Malå and was completed in 2009. Sandra has numerous qualifications in drilling-related subjects, including an […]

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Explomin: A leading Latin American drilling company

July 10, 2019

by Noé Vilcas, Executive Director at Explomin Established in Peru in 2001 by an entrepreneur as a private enterprise with 100 % Peruvian investment, Explomin initially started operations with underground core drilling. Through the years it expanded its range of services to include surface core drilling and reverse circulation drilling (RC). Completing challenging projects in […]

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Similarities between magnetic and north-finding survey tools

February 26, 2019

by Duncan McLeod and Dag Billger, Inertial Sensing One AB Borehole surveying is a fundamental part of drilling operations to establish where a hole has actually been drilled. To accomplish this a variety of systems have been developed over more than a century to perform borehole surveys, based on a wide range of physical measurement […]

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DiscovOre and Arrow 3S: Leading-edge design streamlines function and brings greater safety

February 25, 2019

by Artur Makos, Product Manager, Exploration Products, Epiroc The design of the traditional wireline core drilling system has remained largely unchanged since its introduction to the exploration industry. Over the years, a number of safety issues associated with the traditional wireline coring system have been addressed by manufacturers. Most of the focus has been on […]

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OGK Group: Coring is our core business

February 25, 2019

Background Russian service company OGK Group was established in 2012 following the merger of the leading domestic enterprises in exploration drilling. At that time, the company had 20 employees and two drilling rigs. At first, OGK organized and performed drilling operations in the solid minerals sector, and consistently developed this activity by investing in technical […]

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Exclusive interview with Luc Paquet & Denis Landry

February 22, 2019

Luc Paquet is an alumnus of Concordia University, Montreal, where he studied from 1976 to 1979 and gained a degree in Communications. Luc took his first steps in entrepreneurship by running his own business as a beekeeper. Afterward, he worked for a number of companies where he gained insights into management practices. In 1986 he […]

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Directional Drilling in Rajasthan, India

November 14, 2018

by David R. Walker, Managing Director at Terra Walker Drilling Background Terra Walker Drilling, led by David Walker, was awarded exploration drilling in 2016 by Vedanta – Hindustan Zinc Ltd in Zawar Mines, Rampura Agucha Mines and Kayad Mines, Central West in the state of Rajasthan (India). The company started surface exploration drilling at two […]

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Boart Longyear: Discovering the undiscovered since 1890

November 8, 2018

by Andrew Cuthbert, Senior Manager for Global Marketing & Communications at Boart Longyear History In 1890, a young mining engineer named Edmund J. Longyear set a new standard for innovation in mining. Longyear, a member of the first graduating class at the Michigan Mining School, sank the first diamond drill hole on North America’s Mesabi Iron […]

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DrillSafe: A new drill site safety initiative

November 8, 2018

by Colin Rice, Managing Director at Colin Rice Exploration and Training (Pty) Ltd Much exploration drilling is conducted in remote locations, far away from mining activity, which means these operations can escape scrutiny from the prying eyes of a safety department! In the past, this situation was particularly true in South Africa where drill sites […]

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21 Questions with Brian Maeck

November 8, 2018

Brian Maeck is the Global Director for Environmental, Health, Safety & Training (EHS&T) at Boart Longyear. He was educated at Canadore College in North Bay, Ontario where he was a graduate of the Broadcast Journalism program. He achieved health and safety accreditations through the University of Fredericton and is currently working towards earning his Master […]

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Top 12 mineral exploration drilling contractors

July 4, 2018

Statistics based on 2017 results by Martina Samarova, Marketing and Communications Manager at Coring Magazine After a long downturn, 2017, especially the last quarter, turned out to be profitable for most companies involved in diamond drilling. Coring Magazine reviews the 2017 annual results announced publicly by drilling contractors around the world and ranks the top […]

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Swick Mining: Of innovators and disruptors

June 29, 2018

by Kent Swick, Managing Director and Jenna Aziz, PR Co-ordinator History Swick Mining Services has been operating for over 20 years and was founded by Kent Swick in 1995. Kent is a fourth-generation driller with a drilling heritage that goes as far back as his great-grandfather drilling water wells across the mid-western plains of the […]

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21 Questions with Dr Mark Cruise

June 29, 2018

Dr Mark Cruise is the CEO of Trevali Mining. He founded the company approximately ten years ago to take advantage of what he saw then as a tightening in the zinc market. Trevali has since grown to be a successful exploration company and now owns four operations: Santander in Peru, Caribou in Canada, Rosh Pinah […]

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Energold Drilling Corp.: Experts in Man-Portable Drilling Operations 

March 22, 2018

 by Nick Holroyde, Sales & Marketing Co-ordinator, Energold Group & Richard Thomas, MD Energold Group EMEA   Energold is a diversified, global, drilling solutions provider, that services the mining, geotechnical, water and energy sectors worldwide. Listed on the Toronto stock exchange under the ticker TSX-V: EGD, Energold has been providing a comprehensive range of drilling services for over 20 years in 24 countries. The Europe-Middle East-Africa Division is based in the UK. The company has operations in […]

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Volcanic cores from Iceland’s youngest island

March 22, 2018

 by Savannah Adkins Digital Marketing Co-Ordinator at Rig Source Inc. Drilling into the Surtsey Volcano Formed only 50 years ago from volcanic eruptions below the sea floor, Surtsey Island is a natural habitat protected by UNESCO as a World Heritage Site for scientific research. Named after a fire jötunn known as Surtr in Norse Mythology, […]

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21 Questions with Professor Nikolay D Nenkov 

March 16, 2018

Professor Nikolay D. Nenkov was born in the town of Elena, Bulgaria in 1928. His academic career began at the Technical University of Sofia, from where he graduated in 1951, majoring in General Mechanical Engineering. Then, in 1959 he joined the Sofia University of Mining and Geology as a lecturer. Four years after defending his dissertation thesis on drilling mechanics in 1974, he was awarded the professorship of Drilling Machines and Mechanisms and Drilling Mechanics.  The creative path of Prof. Nenkov is […]

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Foraco International – Safety and Customer First Culture

May 22, 2017

One doesn’t normally think of France as a mining country, let alone the home of the world’s third-largest mineral driller, Foraco International. However, France is where the adventure started in 1962 when “Le Forage Rationnel”, as it was originally called, was founded by Andre Lamothe, in collaboration with Rogers, an American geophysical exploration company. Mining […]

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PDAC 2017 Déjà-vu in Toronto

May 22, 2017

By Grigor Topev   It’s March and I’m back in Toronto for the Prospectors & Developers Association of Canada (PDAC) 2017 trade show. Walking down the aisles in the Trade Show hall I get a strong sense of having seen it all before. Sure, you say, you have – last year. But that’s not quite […]

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Exclusive interview with John MacPhail

May 22, 2017

John MacPhail has been in the drilling industry for 38 years, working in seismic and oil field drilling then moving through to mineral exploration with air drilling and diamond drilling applications. After 10 years of being at the controls himself and then field operations manager, John, together with his brother Jim, started a supply company […]

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Complicated borehole trajectories. Cuiabá mine’s deep drilling project in Brazil.

January 30, 2017

  By Frederico Lana A. R. Figueiredo – Senior Exploration Geologist, Brownfields Exploration, AngloGold Ashanti AngloGold Ashanti’s deep drilling project in Brazil’s Cuiabá region was conducted between 2013 and 2015. The purpose of the project was the confirmation of important ore extensions of the Cuiabá mine gold deposit. The project’s success was possible through collaboration between AngloGold Ashanti as […]

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Formulae in practice, Borehole planning and Toolface calculation

January 12, 2017

by Kiril Apostolov – Directional Drilling Engineer, BG Drilling Solutions Very often during the process of drilling for mineral reserves, the campaign reaches the point where a drill hole or holes have diverted from the proposed trajectory. In these cases, the current azimuth and dip angles of a drill hole need to be brought back […]

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Directional Diamond Drilling – Definitions, terms and simple calculations

January 11, 2017

by Shteryo Lyomov, Phd, Dept. of Drilling, Transport and Oil & Gas Production, Mining and Geology U., Sofia, Bulgaria Directional diamond drilling (DDD) is powerful technology in the service of the mineral exploration industry. Its application plays an important role and is constantly increasing. A close look at its application reveals the most important factors […]

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PDAC 2016: The drilling point of view

August 1, 2016

A report by Grigor Topev The Prospectors and Developers Association of Canada is the biggest exploration drilling show in the world, and though thoroughly international, it has a strong Canadian f lavour. I have visited few mining exhibitions before, but this was my first PDAC expo. My purpose in visiting this year was two-fold: to […]

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A driller and a geologist walk into a bar

July 29, 2016

by Erik C. Ronald, PG – Mining Geology HQ The title may sound like the start of a bad joke, but this article aims to delve deeper into the relationship between geologists and drillers in the exploration and mining industries. These two professions are central and are at times glorified, with the heroic notion of […]

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The Atelier Val-d’Or VD8000 drill rig

July 26, 2016

The Atelier Val-d’Or VD8000 drill rig A proven solution for deep hole surface drilling With years of use behind them, Atelier Val-d’Or’s VD8000 and its smaller sibling the VD5000 have shown that they have what it takes to tackle the most demanding surface coring jobs in a safe and efficient manner. The VD8000 was designed […]

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21 Questions with Craig Scott

July 26, 2016

Craig Scott Field Operations Manager, Hy-Tech Drilling Over the course of his drilling career, Craig Scott has worked in over 60 different countries. Prior to joining Hy-Tech Drilling in 2007, Craig had a 28-year career with Boart Longyear, where he gained significant experience in the diamond drilling industry, working his way up from driller’s helper […]

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Core Drilling Industry Trends: A Namibian experience

May 17, 2016

As depressed conditions in the mining and exploration industry persist, drilling companies have no choice but to respond to the situation according to their individual circumstances. Even as a relatively small player in the international drilling industry, Günzel Drilling has had to embrace the challenges of a perpetually cyclical industry, and an investigation of its […]

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The Locking Coupling: A key factor for hole deviation control

May 8, 2016

For our regular ‘Field practice’ feature, we ask coring experts to write a brief summary of their particular area of expertise. Here, Laurie Cyr and Grigor Topev combine efforts to tell us all we need to know about locking couplings and how to choose the right type. Locking coupling function The locking coupling (LC) is […]

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21 Questions with Kelvin Brown, Reflex Global Product Manager

April 28, 2016

Kevin has been with REFLEX for ten years and is in charge of the Drilling Solutions, globally. He is a holder of the Australian Prospect Mining 2010 Outstanding Contribution to Mining and Miner of the Year awards for his contribution to the 2010 Chilean mine rescue. Coring Magazine: How did you get started in drilling? Kevin […]

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