Title of article
The Ghingee Granite, Tamil Nadu, South India: Geochemistry and Petrogenesis
Author/Authors
Rao، نويسنده , , V. Divakara and Rao، نويسنده , , P. Rama Mohan Rao، نويسنده , , M.V. Subba، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1999
Pages
10
From page
117
To page
126
Abstract
The Palaeo-Proterozoic Ghingee granite is an anatectic granite formed in high grade granulite terrain by ultrametamorphism. The compositional variations both in major and trace elements observed in this granite (SiO2 : 64.16-73.81; Fe2O3 : 0.12-2.19; FeO : 0.12-2.80; MgO : 0.10-2.19; CaO : 1.66-4.71; K2O : 1.09-5.09; Ba: 223-1883 ppm; Cr : 4-60 ppm) are attributed to a) source rock heterogeneity and b) the tectonic disturbances that might have abruptly ended the anatectic melting process. The granite is compositionally similar to Perur, Closepet and Hyderabad granites and is formed during Archaean-Proterozoic transition by anatectic and crustal remelting processes.
Keywords
granite , geochemistry , Tamil Nadu , India , Precambrian
Journal title
Gondwana Research
Serial Year
1999
Journal title
Gondwana Research
Record number
2365143
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