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29 July 2019 | Story Leonie Bolleurs
Dr Martin Clark
Dr Martin Clark, the founder of the MAGIC (Multi-purpose Aerial Geological Image Classification) initiative. MAGIC can obtain geological and structural information that is critical for making informed decisions in exploration and mineral extraction processes.

Mining has historically been described as a boom-and-bust industry, where fluctuations in mineral prices could result in extreme success or bankruptcy. Successful mining companies closely monitor assets/expenditures, risks, and other parameters associated with their business to best ensure their longevity. In most mineral industries, there are a few competitors that dominate the delivery of a mineral resource. As a result, technological development, along with other factors, are critical to ensure that these companies’ business remains viable and protected.

This is according to post-doctoral fellow in the Department of Geology, Dr Martin Clark.

Drone technology: better, faster, safer

He says technological development in mining generally translates to how a company can extract a resource from the ground better, faster, and safer. 

Dr Clark believes the rapid development of drone technology represents a shift in the toolbox that mining companies can employ.

“Drones can collect a great deal of data randomly over vast or small areas within hours, historically accomplished by mapping campaigns which can last months to years. Drones can also collect data in areas which are difficult and dangerous for humans to get to. These include cliff faces or rock walls that are difficult and dangerous to get close to, as well as stretches of land where dense vegetation, inaccessible terrain, and even atmospheric dangers become factors which reduce or modify the scope of exploration work,” he said. 

Expanding application of drones

Dr Clark’s work specifically focuses on expanding the applications for which drones are used. “I assess what and how good the imaging capabilities of drones are, use the imagery to generate 3-D models to drive scientific observation, and yield results which can help companies to extract resources. This initiative is called MAGIC (Multi-purpose Aerial Geological Image Classification),” he said. 



“MAGIC aims to collect geological and structural information that is critical for making informed decisions in exploration and mineral extraction processes,” he added.

Dr Clark is not only the founder of MAGIC; he also drives multiple aspects of the initiative including education, research, and business development. 

In 2013, when he was busy with his doctorate, there was already a spark of interest in using drones to address geological questions. At that time, Dr Clark was working with remotely sensed high-resolution LiDAR imagery to better understand geological structures at the Sudbury Mining Camp in Canada. The interest became a reality in 2018, when he applied this initiative during his post-doctoral fellowship at the UFS.

Now and the future

“At present, there are no direct mining projects underway, but projects are expected to begin in 2020. Drone operation and image-analysis techniques are currently being refined for industry,” he said. 

Besides his work with drones, Dr Clark also work in the fields of structural geology, remote sensing, and geospatial data analysis.  

News Archive

An astrophysics pioneer at Kovsies
2014-01-05

Prof Pieter Meintjes

Over the last decade Prof Pieter Meintjes’ strong background in astrophysics led to the development of a course of excellence at the University of the Free State.

Today we present an Astrophysics degree at our university, from first-year courses to PhDs.

Meintjes matriculated at the Sybrand van Niekerk High School in Sabie and completed a BSc in Physics and Mathematics at the North-West University in 1988. In 1990 and 1993 he respectively obtained his MSc and PhD in Physics from the same university.

Hereafter he spent a post-doctoral year at the Max Planck Institute for Space Science near München in Germany. In January 1997, Meintjes was appointed as a senior lecturer at our university’s Department of Physics. He was promoted to Professor in Physics in 2008.

Prof Meintjes is a member of the South African Institute for Physics (SAIP) and during 2002-2004 he was also co-chair of the astrophysics and space science group of SAIP. He serves on the executive committee of the National Astrophysics and Space Science Programme (NASSP) and is often a visiting lecturer at the University of Cape Town. He is a NRF-supported researcher and author and co-author of 70 publications in high-profile international journals and published conference issues.

During 2011-2013 he successfully delivered three PhD students along with one MSc student. His PhD students also delivered addresses at international conferences in Champery (Switzerland), Heidelberg (Germany), Paris (France), Barcelona (Spain) and Milan (Italy), Cape Town and the Kruger Game Reserve.

Over the last two years he has also been the author and co-author of six publications in Monthly Notices of the Royal Astronomical Society (MNRAS), as well as various publications in the Astrophysical Journal in support of the international planet search programme. A further 12 publications also came forth from Meintjes’ international conference contributions.

During the recent H.E.S.S. meeting in Namibia, Meintjes was appointed as the latest member of the highly-regarded international cooperation with H.E.S.S.

His membership of the H.E.S.S. group is due to his knowledge on gamma rays, which entails research on high-energy astrophysics.

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