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The Aravalli-Delhi orogen of NWIndia hosts extensive bodies of mafic metavolcanics within the Archaean Banded Gneissic Complex (BGC) basement and in the Proterozoic supracrustal belts of Bhilwara, Aravalli, Jharol and Delhi. All metavolcanics within the supracrustal belts are tholeiites, except for the samples from Basantgarh area of Delhi belt which are calc-alcaline. Certain incompatible trace elements...
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