We are Structural-Economic Geologists with extensive field-based experience in high grade terranes

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TECT is affiliated with the following professional organizations

  • – South African Council for Natural Scientific Professions (Member)
  • – Geological Society of South Africa (Fellow and Member)
  • – Society of Economic Geologists (Fellow and Member)
  • – Seequent (Approved Provider of Leapfrog Geo Masterclass)
  • – Rock Mapper (Reseller for Africa)
  • – Micromine (Beta and Pre-Beta Partner)
  • – Leapfrog (Beta Partner)
  • – University of Stellenbosch (External Lecturer)
  • – University of Arizona (Geotechnical Center of Excellence: Course Contributor)
  • – Universidad Santo Tomás (Lecturer)
  • – Chilean Geological Society (Member)
  • – Society for Mining, Metallurgy and Exploration (Member)
  • – Mining Chilean Chamber (Member)
  • – FEXMIN Conference (Directive)
  • – South African Institute for Engineering and Environmental Geologists (Associate Member)
  • – Geological Society of South Africa’s Directorate of Professional Programs (Course Presenter)
  • – South African Student Chapter of the Society of Economic Geologists (Sponsor)
  • – FEXMIN (Feria de Exploración y Minas) (Leaders and Participants)
  • – Universidad Mayor and Universidad Austral de Chile: Diploma in Structural Geology Applied to Mineral Deposits (Leaders and Professors)

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Dr Rodrigo Quiroga

Senior Geoscientist

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Rodrigo obtained his B.Sc. in Earth Sciences at the Universidad de Chile, with an undergraduate thesis on the structural and paleogeographic evolution of the Cenozoic deposits of the Principal Cordillera. His Ph.D. in Earth Sciences was awarded jointly by the Universidad Nacional de Córdoba, Argentina and the University of Potsdam, Germany. This research focused on Cenozoic evolution of the tectonic stress field along the southern margin of the Puna Plateau and the adjacent broken foreland of the southern Central Andes (26°30′–27°40′S), integrating brittle structural analysis, paleostress tensor inversion and anisotropy of magnetic susceptibility (AMS) to reconstruct spatiotemporal variations of strain and stress.

Following his doctorate, Rodrigo held a post-doctoral research position with CONICET, working on the neotectonics of the Salar de Antofalla, Argentina. In parallel with his academic career, he has worked as a structural geology advisor on mineral exploration projects, conducting district- to regional-scale economic-structural studies on the definition, delimitation and critical analysis of structural domains applied to targeting. He has provided structural analysis for NGEX Minerals (Lunahuasi deposit) and SABLE Resources (Don Julio deposit) in San Juan, Argentina, and has consulted for Cobrizo Geociencias and Amawta Geoconsultores on regional geology, structural geology and geological hazards. His technical approach combines field structural mapping and data capture with photointerpretation and integration of potential-field geophysics. He specializes in kinematic and paleostress analysis, and paleomagnetism.

He has published eight peer-reviewed papers in journals including Earth Science Reviews, Tectonics, Tectonophysics, Basin Research and the Journal of South American Earth Sciences, and has co-authored chapters in the Elsevier volume Andean Structural Styles as well as 1:100,000 geological maps for the Chilean Geological Survey (SERNAGEOMIN).

Rowan Walker

Geoscientist

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Rowan holds an M.Sc. in Igneous Petrology and Structural Geology from Stellenbosch University.  Her research integrated geochemical, geochronological, petrological, field mapping and remote sensing techniques to constrain magma differentiation and emplacement of the 280 km-long Timbavati Gabbro, part of the Umkondo Large Igneous Province in Kruger National Park, South Africa.  For her B.Sc. (Hons), she conducted structural mapping and geochemical–petrographic sampling of Umkondo dykes in Namibia.

Rowan has experience in large-scale igneous systems and structural controls in basement terranes, and has worked on projects in structurally-complex regions in Zimbabwe and Australia. She has also completed external drilling and mapping training, including work on an Au-Cu-Mo porphyry system in New Mexico, USA.  Rowan specialises in igneous processes and emplacement mechanisms, field mapping, remote sensing analysis and GIS integration for mineral targeting and 3D geological modelling, using Leapfrog Geo and Micromine.  Memberships include the Society of Economic Geologists and the Geological Society of South Africa.

Nicolás Rodríguez

Geoscientist

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Nicolás holds a B.Sc. in Geology from the Universidad Mayor. His research focused on structural and magmatic controls on the emplacement of a high-silica granitoid suite.  Over the last four years, Nicolás has worked in applied geology for mineral exploration, working across different deposit types, including Cu-Mo and Cu-Au porphyry systems, HS epithermal, IOCG and IOA stratabound, vein-hosted (Sb, Ag and Au), sediment-hosted Cu, as well as orogenic Au deposits.  He has contributed to international exploration projects throughout South America, Canada, the United States and Bulgaria while working with Incaic Exploration, Motherlode Consulting and ENFI. His professional focus has been on structural-geological modelling using Leapfrog Geo, geological mapping, and management and integration of GIS databases to support geological interpretation and targeting.

Nicolás has completed specialized training in Chile and abroad, including Applied Structural Geology, Structural Controls on Mineralized and Hydrothermal Fluid Flow at the University of Tasmania, QA/QC for Mineral Exploration and Exploration in Covered Terrains.  Since joining Tect, Nicolás has been involved in exploration projects covering a variety of mineral deposit styles, contributing to structural-geological mapping, 3D geological modelling, structural analysis at different scales (local-, district- and regional-scale), geological interpretation of geophysical data and exploration data integration.

Louis van Eeden

Geoscientist

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Louis holds an M.Sc. in Economic Geology and Geometallurgy from the University of Stellenbosch. His post graduate research focused on geometallurgical analysis of the lowermost manganese (Mn) seam within the Kalahari Manganese Field. He has undertaken research on the emplacement controls of basic sills into the lower crust within the Okiep Copper District, focusing on the impact, of external stresses and crustal heterogeneity, on the geometry and ascent of magmatic hydrofractures through the ductile lower crust. His M.Sc. explored the mineralogy, geochemistry, and metallurgical properties of this Mn orebody, providing valuable insights into the application of machine learning techniques to optimize underground mining and prevent off-seam extraction.

Since joining Tect, Louis has been involved in projects across various commodities, including Au, Cu, and REE, working in structurally-complex terranes within Southern and Western Africa. Louis specializes in structural mapping, interpretation and 3D modelling of structurally-complex ore deposits and host rock packages as well as the implementation of machine learning techniques in mineral processing and exploration. He is a member of the Geological Society of South Africa, the Society for Economic Geologists and the South African Council for Natural Scientific Professions.

Dr Matthew Hales

Senior Geoscientist

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Matthew Hales holds a Ph.D. from the University of the Witwatersrand. He applied an interdisciplinary approach to characterise the interplay of metamorphic fluids and structural evolution in the development of a Cu-Au-U-Mo deposit within the Southern Zone of the Damara Orogen, Namibia. He has experience in the Bushveld Complex, where he focused on the structural-kinematic evolution of thrust faulting as part of his M.Sc. For his B.Sc. (Hons), he undertook 3D seismic interpretations for oil and gas exploration.

In addition, Matthew has worked on various PGE, Magmatic Ni and Orogenic Au projects in a variety of structurally-complex terranes. Experience in these projects span the full value chain, from targeting, early exploration and delineation of ore reserves to production.

Ruan Raath

Geoscientist

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Ruan holds an M.Sc. in Tectonic Reconstruction, Sedimentology and Geochronology from the University of Stellenbosch. His research focused on Cambrian-aged clastic sedimentary successions forming in intracontinental pull-apart basins, their reconstructions and palaeostress regimes. This required lithological, geochronological and structural analysis of rift-type sedimentary processes. Since joining Tect, Ruan has been involved in various projects within structurally-complex Paleoproterozoic terranes across West Africa.

Ruan specializes in structural mapping, interpretation and 3D geomodelling of structurally-complex ore deposits and their host rock packages in LeapfrogGeo and Micromine. He is a member of the Geological Society of South Africa, the Society for Economic Geologists and the South African Council for Natural Scientific Professions. Ruan received the 2024 Jubilee Medal, from the Geological Society of South Africa, which recognizes the best paper in the South African Journal of Geology for that year.

Dr Guillermo Fuentes

Principal Geoscientist

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Guillermo holds a Ph.D. in Structural Geology and Tectonics from the University of Chile. He is a co-author of two national geological maps for the National Geology and Mining Service of Chile and has worked as a consultant in economic structural geology for major mining companies, including Antofagasta Minerals, Lundin, Glencore, SQM, BHP, Gold Fields and Anglo American. He has led generative mineral exploration projects in northern Chile and has contributed to structural models for major porphyry deposits such as Collahuasi, Los Bronces, Spence and Yabricoya. From 2019, Guillermo has worked as a Principal Geoscientist at Incaic Exploration, before joining Tect Geological Consulting (LATAM, South America), where he currently serves as a Principal Geoscientist.

Guillermo holds certificates in Ore Deposit Models and Exploration Strategies and Structural Controls on Fluid Flow and Mineralization in Hydrothermal Systems from the University of Tasmania, as well as Applied Structural Geology from Cardiff University. He also served as a Lecturer at Santo Tomás University (Santiago) for 10 years, teaching courses in structural geology and mineral exploration.

He currently leads studies on structural controls on mineralization, generating exploration targets in covered terrains of northern Chile, particularly in the Chañarcillo Basin within the Copiapó-Vallenar Range and in areas along the transition between the Cordillera de Domeyko and the Pampa del Tamarugal of the Atacama Desert, which hosts world-class copper porphyry systems.

Sebastián Perroud

Principal Geoscientist

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Sebastián received his M.Sc. in Structural Geology from the University of Chile, specializing in active faults and neotectonics, and is currently pursuing a Ph.D. at Universidad Austral de Chile. He holds certificates from advanced courses, including Geology Fault Mechanics (University of Chile), Advanced Structural Geology (CONICET, Argentina), and Ore Deposit Models and Exploration Strategies, as well as Structural Controls on Fluid Flow and Mineralisation in Hydrothermal Systems (University of Tasmania, Australia).

Sebastián founded and served as a Principal Member of Incaic Exploration (2019–2023) before assuming his current role at Tect Geological Consulting as Director for Latin America and Principal Geoscientist. Over the past 9 years, he has specialized in economic and structural geology, geological–structural modelling using Leapfrog, mineral exploration and project evaluation. He has consulted on IOCG, HS and LS epithermal, porphyry, and stratabound copper deposits in South America, as well as LS epithermal, Carlin and orogenic Au deposits in North America, Asia and Africa, with major companies such as Lundin Mining, Glencore, FQM, TECK Resources, Barrick, Gold Fields, Endeavour Mining and RG Gold, among others.

Within the framework of his Ph.D., he is part of a research group at Universidad Austral de Chile, in collaboration with James Cook University and the University of Western Australia, studying the role of translithospheric structures in the distribution and genesis of Tier 1 Cu and Au deposits in the Atacama Andes. Sebastián is a lecturer on the 3D Modelling and Structural Analysis module of the Postgraduate Diploma in Structural Geology Applied to the Exploration of Metallic Deposits, jointly offered by Universidad Mayor and the Universidad Austral de Chile.

Dr Christopher Lambert

Principal Geoscientist

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Chris has over 13 years of experience in the geosciences industry, working at all scales and across various commodities and structurally-complex tectonic terrains. Chris holds a Ph.D. in Mineral Engineering from Polytechnique Montreal (Canada), where he focused on elucidating the late tectonic evolution of the Grenville Orogeny in western Quebec. Prior to that, he obtained his M.Sc. in Structural Geology from the University of Stellenbosch (South Africa), focusing on the temporal and structural controls of granite and pegmatite emplacement associated with the crustal-scale Pofadder-Marshall Rocks shear zone in the Namaqua-Natal Metamorphic Province.

Since joining TECT in 2023, Chris has worked on various exploration, resource and geotechnical projects, specifically in geological mapping and 3D structural interpretation of several Fe mines (South Africa); intrusion-related REE deposits (Madagascar); Orogenic Gold deposits in West Africa (Ivory Coast, Senegal, Burkina Faso), magmatic-Ni deposits (Western Australia); and the delineation and evaluation of local-regional scale structures and tectonic domains hosting Ni-Cu-Co deposits in East Africa (Uganda, Rwanda, Burundi and Tanzania). Prior to joining TECT, Chris worked for the Council for Geoscience (Geological Survey, South Africa) for 8 years, specializing in geological mapping. During this time, he was part of several collaborative projects, most notably campaign-style mapping of the Namaqua-Natal Metamorphic Complex (South Africa, Namibia) as well as several desk-based mineral exploration projects to identify Au, Ni and Cu, porphyry and epithermal targets in the Central African Copper Belt, the Chagai porphyry Copper Belt (Pakistan) and the Pontide and Anatolides-Taurides terranes (Turkey).

His interests include training of Geoscientists, melt transport and emplacement processes, regional tectonics, geochronology and structural geology. He has worked on over 30 published geological maps and authored and/or co-authored 8 peer-reviewed papers. Chris received the 2018 DIVEX (Mineral Diversification in Exploration in Quebec) Award and is a Member of the Society for Economic Geologists (SEG) and the South African Council for Natural Scientific Professions (Pri. Sci. Nat.).

Dr Paul Macey

Associate Consultant

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Paul’s training in Geology/Geochemistry at the University of Cape Town culminated in a Ph.D. on modeling and characterization of metamorphic, magmatic and ore-generating fluids in meta-sedimentary rocks of the Damara Belt in Namibia. Paul spent 23 years as a Specialist Mapping Geologist with the Council for Geoscience (CGS, Geological Survey of South Africa) managing large, multi-year, national and international, multi-disciplinary geoscience mapping and research programs in Madagascar, Morocco, Mozambique, South Africa and Namibia. As a Senior CGS Manager, he coordinated an integrated, multidisciplinary 10 year “Expanded Geoscience Mapping Program” for South Africa.

Paul focusses on unravelling the geological histories of complex Precambrian terranes through structural and lithologic mapping, geochronology, whole rock and isotope geochemistry and remote sensing. He has produced over 150 geological maps and accompanying sheet explanations, 45 journal articles and 68 conference papers, has mentored CGS staff members and has co-supervised research projects for 28 post-graduate students. Paul’s interests and experience culminated in a course on “Modern Geological Mapping Techniques”.

Paul was a member of SA Antarctic expeditions and a visiting Research Fellow at ANU and Edinburgh. He sits on various scientific committees including the SA Committee for Stratigraphy (Mesoproterozoic WG Chair) and the Namibian Committee for Stratigraphy. Paul is currently an Honorary Research Associate at the University of Cape Town and the owner and Director of Macey Geological Consulting Pty Ltd.

Caitlin Jones

Senior Geoscientist
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Caitlin holds an M.Sc. in Structural Geology from the University of Stellenbosch. Her research for Barberton Mines (Pty) Ltd focused on the structural controls of hydrothermal fluid flow and gold mineralization within the Fairview and Sheba Mines of the Barberton Greenstone Belt, South Africa. Her study involved lithological, structural and geochemical analyses of discrete underground fracture- and shear zone-style orebodies, hosted by various rock units, to determine the kinematics of structures and their context in the broader deformational history of the greenstone belt. The work progressed the understanding of high grade Au deposits and their associated regional and local fluid flow pathways within the Sheba-Fairview mining complex.

Caitlin specializes in the characterization, interpretation, structural mapping and 3D geomodelling of structurally-complex orebodies and their host sequences in Leapfrog and Micromine. She is currently pursuing her Ph.D. in Structural-Economic Geology, focussing on West African Au mineralization, at the University of Stellenbosch. She is a member of the Geological Society of South Africa, Society of Economic Geologists and the South African Council for Natural Scientific Professions. Caitlin has authored three peer-reviewed paper and is Co-Convener of the SEG’s annual Gold Course “Orogenic Gold in Africa and Worldwide” alongside Dr Richard Goldfarb and Dr Bob Foster.

Dr Brett Davis

Associate Consultant
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Brett undertook a Ph.D. in Structural Geology and two Post-Doctorates at James Cook University, Australia. He held the position of Group Structural Geologist for Placer Dome Asia Pacific, Aurion Resources and Delta Gold, Geology Manager and Principal Consultant for RSG, Chief Geologist for Chalice Gold Mines, General Manager of Geology at Consolidated Minerals Limited, Geology Manager for the Woodie Woodie Mn and Beta-Hunt Ni Projects, and Principal Structural Geologist for Dundee Precious Metals.

He is currently Director and Principal Structural Geologist at Olinda Gold, which is strongly focussed on the application of structural geology to the mineral exploration and mining industry, supplemented by Brett’s extensive research background on deformation processes, tectonics and structural controls on mineralisation at all scales.

He has gained extensive experience in multiple mineral commodities and deposit types through his global, longstanding consulting and research activities. Brett is a Fellow of the Society of Economic Geologists, a Member of the Geological Society of Australia, a Member of the International Association of Structural/Tectonic Geologists, a Member of the Editorial Board for the Australian Journal of Earth Sciences and an Adjunct Research Fellow, James Cook University of North Queensland. Brett has authored over 30 peer-reviewed papers and chapters.

Prof. Alex Kisters

Associate Researcher

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After an M.Sc. at Aachen University, Alex completed his Ph.D. at the Economic Geology Research Unit, Department of Geology, University of the Witwatersrand, Johannesburg.

He has held the post of Assistant and Visiting Professor at the Institute of Mineralogy and Economic Geology, RWTH Aachen and the Department of Geology, University of Cologne, Germany, respectively. Alex is currently the Head of Department and Full Professor in Structural Geology, Department of Earth Sciences, University of Stellenbosch, South Africa. Alex is a highly-experienced Structural Geologist with extensive field experience.

His research and work concerns rock deformation, regional tectonic evolution of terrains and the controls of hydrothermal fluid flow and partial melts. His main focus is the structural controls on orogenic Au deposits and the processes of melt extraction, magma transport and granite emplacement. His work, in conjunction with the minerals industry, has taken him to projects in Africa, Europe, Russia and Greenland. Alex has written and contributed to over 80 peer-reviewed papers in Nature, Journal of Structural Geology, Tectonophysics, Geology, Economic Geology, Ore Geology Reviews, Mineralium Deposita and the Geological Society of London.

Heike Fourie

Geoscientist

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Heike is a B.Sc. Honours graduate in Applied Geology from the University of Stellenbosch. Her research focused on defining the potential of diamond entrapment within offshore mega-placer deposits along the southwestern coastline of Namibia.

During her studies, she gained experience in interpreting and correlating seismic datasets and marine sedimentary successions in order to characterize the geometry and occurrence of potentially favorable diamond trap-sites. Since joining Tect, Heike has been involved in an array of projects in structurally-complex terranes within Southern Africa.

Heike specializes in the interpretation of geophysical and remote sensing datasets, their integration into GIS compilations and their application to larger targeting exercises, in addition to 3D geomodelling in LeapfrogGeo and Micromine. She is a member of the Society of Economic Geologists and the South African Council for Natural Scientific Professions.

Luke Carlton

Principal Geoscientist

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Luke specializes in the structural mapping, interpretation and 3D geomodelling, in Leapfrog and Micromine, of structurally-complex deposits. He accumulated years of experience are across multiple commodities (incl. Au, Cu, Co, Pb, Zn, Ag, Fe, Sb) and structural terranes.

His B.Sc. Hons. research established a strong foundation in structurally-complex orogenic systems, wherein he focused on the structural controls on auriferous hydrothermal fluid flow within the Sheba Mine in the Archean Barberton Greenstone Belt, South Africa. This elucidated the relationship between discrete vein networks and their controlling shear zone architecture, thereby aiding the understanding of mine- to district-scale controls on auriferous mineralization within the Sheba-Fairview mining district. He also holds a M.Sc. (Cum Laude) in Economic-Structural Geology from the University of Stellenbosch, which focused on the lithological and structural controls of disseminated Au mineralization of the MEM2 deposit in the Murchison Greenstone Belt, South Africa. This required 3D modelling and petrographic analysis to characterize the controls of Au-only mineralization within the Antimony Line shear zone, resulting in a better understanding of polyphase Au and Sb mineralization, which has guided new exploration.

He is a Member of the Geological Society of South Africa, the Society for Economic Geologists and the South African Council for Natural Scientific Professions (Pri. Sci. Nat.).

Dr Jodie Miller

Associate Researcher

Jodie has accumulated more than 25 years of mapping and research experience in a wide variety of geological terrains in Africa, Europe and Australia. She is involved in generating programs for academia, industry and governmental organizations, with a focus on integrating isotopic and petrological studies with structural geology and tectonics.

She undertakes research in the fields of acid intrusives, thermal metamorphism, layered ultramafics, fluid migration, applied mineralogy and structural geology. Jodie qualified with a Ph.D. in Metamorphic Geology from Monash University, Australia. En-route to this she earned numerous awards and grants for her outstanding research efforts, including the 1993 Departmental Medal, the Western Mining Corporation Prize for Outstanding Achievement, the 1997 European Union of Geosciences Young Scientist Award, Queen’s Trust Australia Award, 2000 and an IAGC Certificate of Recognition in 2008.

She earned the University of Stellenbosch’s Rector’s Award in 2012, 2013 and 2014. Jodie is a Member of the Geological Society of Australia, a Fellow of the Geological Society of South Africa and a Member of the Geological Society of Australia. She has published over 60 peer-reviewed articles in international journals and books.

Howard Baker

Associate Consultant

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Howard holds an M.Sc. in Mineral Resource Evaluation from Cardiff University, which he has put to good use in over 40 Competent Person, Qualified Person and Technical Reports on projects in Brazil, Canada, Ethiopia, Sudan, Liberia, Sierra Leone, Guinea, Mauritania, Congo, Gabon, Nigeria, South Africa, Portugal, Spain, Finland and Sweden.

Besides mineral resource estimation, technical due diligence and reporting, his expertise includes statistical and geostatistical studies of exploration data, exploration planning and geological project development, 3D geological modelling, integrated geology and mine planning studies. Howard is proficient in LeapfrogGeo, Datamine RM, Vulcan, Supervisor and X10.

He was recently a Non-Executive Technical Director of Sula Iron and Gold plc, an AIM-listed gold-focused exploration company operating in Sierra Leone. His roles prior to this include Principal Consultant (Resource Geology) and Practice Leader at SRK Consulting (United Kingdom), Specialist Resource Geologist at Pilbara Iron Ore, Senior Production Geologist at Iluka Resources, Project Geologist at Murrin Nickel Laterite Mine, Project Geologist for GeoCos and Mine Geologist for BHP Billiton. Howard is a Chartered Professional Fellow of the Australasian Institute of Mining and Metallurgy.

Damian Smith

Associate Consultant
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Damian graduated from the Camborne School of Mines (United Kingdom) with a M.Sc. in Mining Geology. He has accumulated over 30 years of experience in the mining industry, with a strong focus on PGMs and Cr. He currently fulfils the role of Group Consulting Geologist at Northam Platinum, South Africa.

A recent highlight in his career was the commissioning of Booysendal Mine on the Eastern Limb of the Bushveld Complex, a project that he was responsible for from its inception. He undertakes feasibility, due diligence and CP studies for PGM, Cr and Au resources, including the compilation and auditing of resource estimates. He has completed target generation projects for Cr and Au in southern Africa and has developed PGM, Cr and Au resource models. He is a recognized expert and sought-after consultant on groundwater and rock consolidation strategies. Damian has authored 14 peer-reviewed articles and conference abstracts.

Memberships and affiliations include Master of the Camborne School of Mines, Fellow of the Geological Society of South Africa, Member of the South African Institute of Rock Engineers and Associate Member of the Association of Mine Managers.

Dr Pieter Creus

Associate Consultant
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Pieter completed an M.Sc. in Structural Geology at the University of Stellenbosch, on lower crustal ductile flow mechanisms of the Kliprand Dome in Namibia. Following this, he worked as an Exploration Geologist at AngloGold Ashanti’s Siguiri Gold Mine, Guinea.

His expertise includes mapping of high-grade metamorphic terranes, compilation of geological maps, structural and lithological mapping of opencast mines, liaison with Geotechnical Engineers and mining personnel in pit slope design. Pieter specializes in 3D Geomodeling in Leapfrog and Micromine. He employs Agisoft Metashape Pro, ioGAS, Python and MATLAB scripting to solve complex 3D problems. His proprietary scripts have significantly aided the translation of dense clouds of fabric and bedding orientations into representative 3D form surfaces and apparent dip maps for Tect’s clients. Pieter applied the knowledge gained on two courses: Cisco CCNA: Routing and Switching and Microsoft Server 2012: 70-410 and 70-411 to the set-up of Tect’s servers and IT systems, which have been unfailingly reliable.

He recently completed a Ph.D. in Geometrical and Numerical Modelling, at James Cook University, on the structurally-complex Dugald River Zn-Pb-Ag Mine in Queensland, Australia. He is a member of the Society of Economic Geologists, the Geological Society of South Africa, the South African Council for Natural Scientific Professions and the Australasian Institute of Mining and Metallurgy. Pieter has published 8 peer-reviewed articles to date.

Jonathan Gloyn-Jones

Associate Researcher

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Jonathan holds a M.Sc. in Structural and Economic Geology from the University of Stellenbosch. His research focused on the structural controls, deformation and hydrothermal fluid flow in orogenic/lode gold mineralization within the Archean Barberton Greenstone Belt, South Africa. During his studies, he gained experience as a Structural-Economic Geologist at Barberton Mines (Pty) Ltd.’s Fairview Mine, conducting extensive underground structural, lithological and kinematic mapping, analysis and characterization of the Hope Reef Complex and Main Reef Complex orebodies. His work, for which he received the South African Geological Society’s Corstorphine Award, elucidates the mine- to district-scale controls on auriferous mineralization and their regional tectonic implications.

He has been involved in more than 24 projects in complex structural settings, covering both opencast and underground mines and exploration prospects in low- to high-grade metamorphic terranes, throughout southern, central and western Africa and central Asia.

Jonathan specializes in the structural mapping, interpretation, characterization and 3D geomodelling of shear-zone hosted orogenic gold deposits, across a diverse range of greenstones and accreted terranes, using LeapfrogGeo and Micromine. His construction of intricate structural networks, representative form surfaces, fabric domains, representative orebody geometries and grade shell volumes has optimized and guided resource modelling, geotechnical analysis and generative exploration for numerous companies, including Glencore, Kazzinc, Caledonia Mining, Stibium Mining, Osino Resources, Chesser Resources, Shanta Gold, Xtra Gold, Goldenstar Resources and Banro Corporation. He has published 4 peer-reviewed papers in Ore Geology Reviews, Mineralium Deposita and Minerals. He is a member of the Society of Economic Geologists, the Geological Society of South Africa and the South African Council for Natural Scientific Professions.

Ben Stoch

Associate Consultant

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Ben’s M.Sc. concerned the 3D implicit modelling of the Merensky and UG2 Reefs across the main chamber of the Bushveld Complex, using public-domain data. Ben has successfully managed and completed over 20 projects, encompassing research, development and modelling of various prospects across multiple commodity types.

His primary focus is on advanced structural mapping of open-pits and exploration projects, detailed analysis of structural geology and 3D geomodelling using Leapfrog, Micromine and Gemcom. His consulting includes structural domaining, apparent dip analysis and its application towards the delineation of geotechnical design sectors and resource model optimization.

During his tenure, Ben has successfully constructed 3D models for Voorspoed (De Beers), Jwaneng, Orapa, Damtshaa and Letlhakane (Debswana) and Sishen Mine (Kumba). He is the project manager for ongoing 3D modelling work at Kolomela Mine (Kumba), which now incorporates the implementation of Leapfrog Central. Ben has a strong aptitude for database management, client liaison and data manipulation in several software packages. The workflows that he has developed for dynamic 3D gemodelling have significantly increased the productivity of our client’s operations. Ben has published 5 peer-reviewed articles.

Michael McCall

Principal Geoscientist

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Michael holds an M.Sc. in Economic Geology from the University of Stellenbosch. Since joining Tect in 2015, he has managed a broad portfolio of projects across the globe. Michael specializes in technical exploration and mining project reviews and analysis for capital investment firms and resource companies, leveraging his extensive experience in field- and mine-based geological mapping in structurally-complex terranes. He also undertakes geophysical data interpretation, structural analysis and 3D geological modelling for exploration targeting, resource delineation and geotechnical design studies across a wide range of commodities, deposit types and mineralization styles. Michael leads business development and new ventures for Tect, establishing and nurturing strategic opportunities and partnerships.

Throughout his tenure with Tect, he has advanced geoscientific understanding for major mining companies such as Endeavour, Alphamin, First Quantum Minerals, AngloGold Ashanti, ERG, Glencore, De Beers, Stibium, and Kumba Iron Ore, as well as for exploration companies including Landore Resources, White Pine Copper, Tectonic Metals, Iron Bull Mining, Ivanhoe Electric and Ma’aden.

To date, he has contributed to more than 12 peer-reviewed publications and conference proceedings, each with a strong structural-economic focus. He is the former Chairperson of the Geological Society of South Africa’s Western Cape Branch, a Fellow of the Geological Society of South Africa, and a member of both the Society of Economic Geologists and the South African Council for Natural Scientific Professions.

Dr Corné Koegelenberg

Principal Geoscientist
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Corné holds a Ph.D. and MSc. in Structural-Economic Geology from the University of Stellenbosch and has over 13 years of industry experience across various commodities and structurally-complex metallogenic terranes. His research interests and expertise are diverse, ranging from Archean to Proterozoic fold-and-thrust belt tectonics and precious metal mineralization, magmatic-sulphide Ni-Cu-PGE mineralization and transport in layered igneous complexes, upper to lower-crustal tectonics and base metal mineralization, to advanced 3D geomodelling for large open pits and underground mines.

Corné has addressed over 78 structurally-focussed projects across the exploration and mining sector at all scales and stages. He has a strong aptitude for project management, structural mapping and analysis, and specializes in advanced 3D geomodelling. Corné’s detailed work has optimized and guided resource modelling, geotechnical analysis and generative exploration for numerous companies, including Barrick, BHP, Glencore, Anglo Gold Ashanti, Anglo Platinum, Anglo American, Endeavour, Kazzinc, KoBold Metals, Teck, Kumba Iron Ore, Shanta Gold and numerous juniors.

He has published and/or co-authored 13 peer-reviewed papers and is a member of the Society of Economic Geologists, a Fellow of the Geological Society of South Africa and a registered professional scientist (Pr. Sci. Nat) with the South African Council for Natural Scientific Professions.

Dr Ian Basson

Principal Geoscientist

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Ian holds a Ph.D. in Structural-Economic Geology from the University of Natal. After Post-Doctoral research at the University of Cape Town, on the structural controls on kimberlite emplacement, he founded Tect Geological Consulting in 2002. The company focusses on the resolution of complex structural settings and the way they affect mining, targeting, evaluation and geohydrological modelling and analysis.

Ian specializes in the interpretation of complex geology, mapping of opencast mines and 3D geomodelling in Leapfrog and Micromine. He is an industry expert in lithological and structural interpretation of geophysical data and forward structural modelling and targeting for exploration projects. He has provided his expertise to numerous mining and exploration companies, including BHP, Anglo American, Rio Tinto, Kumba, De Beers, Debswana, Glencore, ERG, Barrick and First Quantum Minerals. In the last two decades, Ian has gained personal experience in over 150 projects, 18 commodities and 38 deposit types throughout 23 countries.

He is a qualified Practicing Natural Scientist, a Fellow of the Geological Society of South Africa, a Fellow of the Society of Economic Geologists and an Associate Member of the South African Institute of Engineering Geologists. He has published 36 peer-reviewed papers and presents an annual course on 3D Geomodelling for both the Geological Society of South Africa’s Continuing Professional Development Program and the University of Stellenbosch’s Postgraduate Geology Class. He also presents modules and case studies for the University of Arizona’s School of Mining and Mineral Resources (Geotechnical Centre of Excellence).

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