U.S. Geological Survey-Ingeominas mineral resource assessment of Colombia; ore deposit models [unknown]

Dennis P. Cox
1983 Antarctica A Keystone in a Changing World   unpublished
PREFACE This compendium of ore deposits models was assembled for the Colombia Mineral Resource Assessment Project. The objectives of the compendium are: (1) to define mineral deposit types so that all project members have a common vocabulary or deposit classification scheme to which mineral occurrences, favorable geologic environments, favorable geochemical anomalies, and tonnage-grade models may be related; (2) to provide data on the environments of ore deposition so that favorable rocks,
more » ... vorable rocks, structures, and tectonic settings can be easily recognized by project geologists; and (3) to relate possibly the associations of elements within geochemical anomalies to specific deposit types so that geochemical data may be more easily interpreted. A key-word index and an element association index are included to help in achieving the second and third objectives. The compendium is not complete at this stage and many models useful in the Colombia assessment still need to be added. Appropriate models for the Proterozoic shield environments of eastern Colombia are needed.
doi:10.3133/ofr83423 fatcat:53iteqfktjfaxcrf56p2ma5fsm