Sergo Ordzhonikidze Russian State University for Geological Prospecting, Moscow, Russia

Ignatov P. A., Leading Researcher, Professor, Doctor of Geologo-Mineralogical Sciences, petrignatov@gmail.com
Malyutin S. A., Senior Researcher, Associate Professor, Candidate of Geologo-Mineralogical Sciences
Vercheba A. A., Leading Researcher, Professor, Doctor of Geologo-Mineralogical Sciences
Medina J. P., Engineer, Candidate for a Master’s Degree

The territory of Eastern Colombia occupies the western part of the Amazonian Craton and is composed of Precambrian rocks overlain by a sedimentary cover. This region hosts occurrences of endogenous gold mineralization and numerous placer deposits. Collapsed quartz veins and exposures of gold-bearing conglomerates have been identified. The area is considered promising, although it remains virtually unexplored. No medium- or large-scale geological mapping or exploratory drilling has been conducted there. To determine the potential geological and industrial types of gold deposits, an overview of the main deposit types typical for the cratons of South and West Africa and South America is presented. Analysis of cratonic gold endowment indicates that the most probable types for Eastern Colombia are vein and vein-stockwork gold deposits of the quartz–sulfide type. To a lesser extent, stratiform deposits may occur in areas of banded iron formations, and gold-bearing quartz conglomerate bodies are likely to be present at the base of Paleoproterozoic sequences. The gold potential of this territory is considered to be high, as it lies within the gold-bearing metallogenic zones of the Amazonian Craton.

The research was supported by Ministry of Education and Science of the Russian Federation, Project No. 075-15-2025-657 «Gold Metallogeny of the Western Colombian Shield and the Development of Digital Predictive Criteria for Concealed Deposits».

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