Gold Exploration in Tropical Landscapes

Gold Exploration in Tropical Landscapes

Areas of Study: Exploration and Geology

Qualifies for CMS

Qualifies for Certification

Gold Exploration in Tropical Landscapes is a technical and applied geoscience course, presenting effective field techniques and cultural etiquette for mineral exploration at tropical latitudes (between 23° 26′ 16″ North and 23° 26′ 16″ South.)

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  • Audience Level:
  • Professional
  • Enrollment:
  • Required
  • Duration:
  • 26 hours

Course Summary

Introduction

Gold Exploration in Tropical Landscapes is a technical and applied geoscience course, presenting effective field techniques and cultural etiquette for mineral exploration at tropical latitudes (between 23° 26′ 16″ North and 23° 26′ 16″ South.)

Why is there so much red soil in the tropics and how do we explore through it to find gold deposits? What controls supergene gold development? What can the location and style of small-scale gold mining tell us? These topics and others are addressed from a grassroots-exploration geologist perspective.

Danae Voormeij, BSc (hon), MSc and PGeo, draws on her field experience in lateritic environments and research in tropical gold geochemistry. Relevant scientific studies are introduced and real examples are given, richly illustrated with figures and photographs. This course was peer-reviewed by Dr. Tom McCandless from MCC Geosciences and Dr. Craig Hart, Director of the University of British Columbia's Mineral Deposit Research Unit.

This course will appeal to anyone with an interest in the gold exploration industry.

The course covers the following principal topics:

  • Tropical Climates and Weathering of Bedrock
  • Description of the Zones of the Laterite Regolith
  • The Formation of Tropical Regolith
  • Dispersion of Gold Within Tropical Soils
  • Target Generation—Stream Sediment and Soil Geochemical Surveys
  • The Social Impact of Gold Exploration in the Tropics
Above photo courtesy of Alexander Lerche.

Course Content

The course comprises 24 viewing sessions, each of 30–90 minutes duration, plus supporting figures, tables and references and interactive reviews that confirm your achievement of the learning objectives. The total duration of the course is approximately 26 hours.

Learning Outcomes

  • Recognize the different layers of the laterite regolith and which ones to sample from.
  • Identify the chemical and physical controls of laterite regolith.
  • Identify how and where gold disperses when gold deposits are exposed to tropical weathering.
  • Identify the fundamentals of designing a stream sediment and soil geochemical sampling survey in the tropics.
  • Recognize how to extract useful information from artisanal gold-mine workings.

Recommended Background

  • A degree in geology or interest in exploration geology in the tropics.
  • Field experience in gold exploration (recommended.)

Danae Voormeij

Danae A. Voormeij is a Vancouver-based exploration geologist, with a BSc (honours) in Earth Sciences from Simon Fraser University and an MSc from the University of Victoria. She has been a member of the Geological Association of Canada and the Canadian Institute of Mining since 2001, a registered Professional Geoscientist with the Association of Professional Engineers and Geoscientists of British Columbia since 2007, and a Fellow of the Society of Economic Geologists since 2013.

Upon graduating University, she was offered a gold exploration geologist position in Suriname, mainly because of her Dutch language skills. She had to learn on the job about tropical weathering processes. Her work involved local people management as much as recognizing the different horizons of the regolith for sampling. Her focus began to develop in gold and lateritic environments.

By working for junior mineral exploration companies she gained large responsibilities fast. Soon she was forming field teams, generating gold prospects, and drill testing them in such frontier countries as Madagascar, Papua New Guinea, Uganda and Namibia. Persistence paid off and in 2011 she successfully led Hummingbird's exploration team to the discovery of Tuzon; a 2 million ounce inferred gold resource in Liberia, West Africa.

Ms. Voormeij is the principal consultant of Mynah Exploration Inc., so named for the bright mynah bird common to the tropics.