Presents one-day geology courses

The Mineral Deposits of Colombia,
Panama & Ecuador • 15th Nov.

Dr Stewart Redwood, Consulting Economic Geologist

  • The Regional Geology, Tectonics and Terranes of Panama, Colombia and Ecuador
  • The Metallogenic Belts and Metallogenesis of Panama, Colombia and Ecuador
  • The Jurassic and Cretaceous Gold‐Copper Belts of Colombia
  • The Jurassic Gold‐Copper Belt of the Eastern Cordillera, Ecuador
  • Mineral Deposits of Gold, Copper, Manganese, Nickel and Platinum Related to the Cretaceous and Paleogene Oceanic Terranes of Panama and the Western Cordillera of Colombia and Ecuador
  • Porphyry Copper‐Gold Deposits of the Paleogene Arc of Panama and the Western Cordillera of Colombia and Ecuador
  • The Oligocene‐Miocene‐Pliocene Gold‐Copper Belts of Panama
  • The Miocene Gold‐Copper Belts of Colombia – the Middle Cauca, Southern Colombia, and California‐Vetas Gold Belts
  • The Miocene Copper‐Gold Belts of the Western Cordillera, Ecuador

Creation and destruction of permeability • 15th Nov.

Richard Tosdal, PhD, PGeo

Near-field and far-field deformation together with hydrothermal fluid flux and fluid-rock reactions are critical for creating and destroying permeability required for ore deposition in the porphyry Cu and epithermal environments.  The workshop examines the linkages from a practical and applied perspective with the goal of providing a broad framework  for understanding the complexities in these major ore forming environments.

  • Creation of permeability; principals of fracture and fault formation
  • Destruction of permeability; principals of hydrothermal alteration
  • Structural and hydrothermal controls in porphyry Cu deposits
  • Structural and hydrothermal controls epithermal deposits
  • General discussion

Orogenic Gold: Geology, Geochemistry, Genesis, and Exploration Criteria • 15th Nov.

Dr Richard Goldfarb

This course will provide a comprehensive overview on the geology of and exploration for orogenic gold deposits, the most widespread type of gold deposit globally and an important gold target type in Colombia. It will provide descriptions of the most important Precambrian and Phanerozoic examples of orogenic gold ores formed in the world’s young accretionary orogens and old cratonic greenstone belts. Topics to be covered include tectonic and structural controls, geological characteristics, geochemical and geophysical signatures, geochronological relationships, and exploration strategies.  Other gold deposit types with some overlapping features, particularly intrusion-related and Carlin-type gold deposits, will be compared and contrasted to indicate what type of ore systems are the most favorable targets for the explorationist in various provinces.

  • Introduction to the Geology of Gold Deposits
  • Geological Characteristics of Orogenic Gold (Gold in Metamorphic Rocks)
  • Mineralogy, Alteration, and Geochemistry of Orogenic Gold and Exploration Implications
  • Genetic Models for Orogenic Gold
  • Cenozoic-Mesozoic Orogenic Gold (and what about Colombia!)
  • Paleozoic-Neoproterozoic Orogenic Gold
  • Precambrian Orogenic Gold
  • Comparisons and Contrasts with Carlin-type Gold Deposits and Intrusion-Related Gold Deposits: Why the Confusion?