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Home » Atlas » Palaeoproterozoic (ca 2.07 Ga) granitoid , with complex (inherited) 3.4 and 2.7 Ga zircons

Palaeoproterozoic (ca 2.07 Ga) granitoid , with complex (inherited) 3.4 and 2.7 Ga zircons

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).

Permission: 
N/A
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
Author Credit: 
Sharad Master
Contributed: 
01/12/2013
Updated: 
15/10/2014

Dete3-1.jpg

Photo Credit: 
Sharad Master
Photo Description: 
Deformed Palaeoproterozoic granite with complex zircons: Inherited cores as old as 3.4 Ga, with 2.7 Ga overgrowths, and latest overgrowths of ca. 2.07 Ga (possible intrusion age?).