Title:
Gold mineralisation in the intracontinental branch of the Damara orogen, Namibia: A preliminary survey
Author(s):
Abstract:
The principal regional features and types of hydrothermal gold mineralisation in the intracontinental branch of the Pan-African Damara Orogen are discussed. Gold deposition occurred during the extensional and compressional-collision phases of the orogenic evolution. Minor gold mineralisation is present in the massive sulhide deposits of the Matchless Amphibolite Belt, emplaced during the extensional phase. The compressional-collision phase was characterised by deformation, metamorphism and granitic igneous activtty. Gold deposits that formed during this stage include gold associated with thrust zones; turbidite-hosted gold; and marble and calc-silicate-hosted gold. The latter is a type of gold mineralisation previously undocumented in the literature. The genesis of these gold deposits is related to episodes of hydrothermal fluid generation during tectonism, metamorphism and magmatic activity.
Publication Title:
Journal of African Earth Sciences (and the Middle East)
Volume:
13
Issue:
3-4
Pages:
1991
Item Type:
Journal Article
Language:
en

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