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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

Plant researcher receives prestigious Grain SA award
2016-10-21

Description: Plant researcher receives prestigious Grain SA award Tags: Plant researcher receives prestigious Grain SA award

Prof Zakkie Pretorius from the UFS Department
of Plant Sciences with Andries Theron,
vice-chairman of Grain SA. Theron presented
the award to Prof Pretorius at Grain SA’s a
nnual gala event, which was held in Midrand
this year.
Photo (read more): Supplied
Photo (spotlight): Charl Devenish

A researcher in the Department of Plant Sciences at the University of the Free State (UFS), Prof Zakkie Pretorius, received the prestigious Grain Producer of the Year Inspiration Award during the annual gala event of Grain SA. Grain SA provides strategic commodity support and services to South African grain producers to assist in the sustainability of the sector.

This award is presented to individuals or organisations in appreciation of excellent contributions to the grain industry. These individuals have also achieved extraordinary results in their respective fields.

Research in the interest of food security
Prof Pretorius has been involved in research on plant diseases and food crops for the past 38 years. His research focus, rust diseases in crops, is especially important for food security.  

According to Prof Pretorius, who collaborates with an extensive network of specialist colleagues, his research covers a variety of topics including rust race identification, the discovery of new resistance genes, characterisation of resistance expression in plants, and the mapping of genes. His focus is not only on wheat, but he also researches rust diseases in oats, barley, maize, dry beans, lentils, sunflowers, and soybeans.

Breeding of rust-resistant varieties gains scientific basis
Locally, he has been contracted for several years by the Winter Grain Trust to annually evaluate commercial wheat cultivars and elite germplasm. This information is regularly passed on to the relevant seed companies and breeders, and is also included in the production guidelines of the Agricultural Research Council for disease risk assessment. His research places the breeding and selection of rust-resistant varieties on a solid scientific foundation. A living collection of rust fungus cultures and a large germplasm collection are maintained at the UFS under his supervision.

 

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