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Palaeoproterozoic (ca 2.07 Ga) granitoid , with complex (inherited) 3.4 and 2.7 Ga zircons
Submitted by Andrew du Toit on Wed, 15/10/2014 - 13:46 | Last updated: Wed, 29/10/2014 - 11:58
Grid Ref (WGS84 Lat/Long in decimal degrees)
-18.565000, 27.055000
Location:
Along the Road to Gwayi River Mine
Stratigraphy:
Granitoid intrusive into the Malaputese Group
Description:
In this outcrop, there is a deformed granite with anastomosing subhorizontal fractures, which is weathered with brownish iron oxide staining. It has yielded a very complex set of zircons, with inherited cores as old as 3.4 Ga, with 2.7 Ga overgrowths, and a final overgrowth at 2.07 Ga, which is possibly the age of intrusion of the granite, which was subsequently deformed (Master et al., 2013a,b).
Further Reading:
Geological Society of Zimbabwe Annual Summer Symposium, Victoria Falls, 28-30 November 2013, Field Excursion Guidebook "An Introduction to the geology and geochronology of the Dete-Kamativi Inlier" by Dr Sharad Master of the Economic Geology Research Institute, School of Geosciences, University of the Witwatersrand, Johannesburg, South Africa, sharad.master@wits.ac.za
Contributed:
01/12/2013
Updated:
15/10/2014
