Geochemistry of Dharwar metavolcanics and composition of the primeval crust of the peninsular India

Details Geochemistry of Dharwar metavolcanics and composition of the primeval crust of the peninsular India Geochemistry of Dharwar metavolcanics and composition of the primeval crust of the peninsular India

Jan 1973

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1973gecoa..37..159n&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 37, Issue 1, pp.159-164

Computer Science

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Scientific paper

The chemical composition of the Dharwar metavolcanic suite from Chitaldrug is found to be similar to that of early Precambrian metabasalts from Canadian and Australian Shields. Its low K 2 O content and the similarities in the ferromagnesium trace elements with those of oceanic olivine normative tholeiites indicate a low K 2 O oceanic type of original magma. It is suggested that a protocontinent having a thin crust approaching basic composition existed during the pre-Dharwar era.

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