The marinkas kwela alkali-granite intrusive, a probable porphyry molybdenum system of cambrian age, namibia
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The geology, geochemistry and alteration of the Marinkas Kwela prospect in Namibia, is described. The prospect is located within the Kuboos-Bremen line of intrusions largely composed of alkali-rich rocks and lesser carbonatites of Cambrian age. The body as it is presently known is entirely formed by alkali granite and partially surrounded by syenite. The mineralogy and chemistry of the Marinkas Kwela prospect are remarkably similar to that of the Werner Bjerge massif of East Greenland where Mo mineralisation is known to occur. The prospect is also characterised by a conspicuous hydrothermal alteration predominantly composed of quartz and sericite with lesser carbonate and pyrite. Also anomalous values of Mo, Cu, Pb and Zn occur in an annular distribution over the prospect.
KeywordsGeochemistry Molybdenum Pyrite Mineral Resource Cambrian
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