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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Evidence for an early Archaean granite from Bastar craton, India
Journal of the Geological Society, Volume 166, No. 2, Year 2009
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Description
Granitoids in the early Archaean are believed to be potassium-poor tonalite-trondhjemite-granodiorite rocks. Only after continental crust attained sufficient thickness did true (relatively potassium-rich) granites form. No record of true granite prior to 3.4 Ga is available. We report a 3.6 Ga true granite from the Archaean Bastar craton in India. In contrast to the typical early Archaean granitoids, which are commonly deformed into gneisses, this granite is relatively undeformed. The age and composition of the granite implies that continental crust of the Bastar craton attained sufficient thickness to permit intracrustal melting at 3.6 Ga. © 2009 Geological Society of London.
Authors & Co-Authors
Rajesh, Hariharan M.
South Africa, Johannesburg
University of Johannesburg
Mukhopadhyay, Joydip
South Africa, Johannesburg
University of Johannesburg
India, Kolkata
Presidency University, Kolkata
Beukes, Nicholas Johannes
South Africa, Johannesburg
University of Johannesburg
Germany, Freiberg
Technische Universität Bergakademie Freiberg
Gutzmer, Jens
South Africa, Johannesburg
University of Johannesburg
Belyanin, Georgy A.
South Africa, Johannesburg
University of Johannesburg
Armstrong, Richard A.
Australia, Canberra
The Australian National University
Statistics
Citations: 120
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1144/0016-76492008-089
ISSN:
00167649