Geochemical, Sr and Nd isotopic studies on the Kalva Rangan Durga Quartzites of the Shimoga greenstone belt: Implications on weathering of Dharwarian continental crust
Abstract:The Mesoarchean Kalva Rangan Durga Formation of the Shimoga greenstone belt in the western Dharwar Craton consists of orthoquartzite, ferruginous phyllite, banded ferruginous chert, and conglomerates. Thick beds of orthoquartzites of this formation are well exposed in Kalva Rangan Durga ridge, trending northeast to southwest for about 9 km, in the southwest part of the Honnali Dome. Quartzites are fine-grained in nature and mostly composed of quartz grains and fuchsite mica. In the present study, we have colle… Show more
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