Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Origin of Chromite Pyroxenites from Kondapalli, Andhra Pradesh


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1 Department of Geology, Andhra University, Waltair 530003, India
 

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The chromite pyroxenite nodules of Kondapalli region were brought from deeper levels of the earth by spinel pyrofenite magma during cross folding in the Eastern Ghats. The spinel pyroxenites were transformed into the mineral assemblage: serpentine-gamet-magnesite-calcite-quartz, due to the activity of volatiles derived from the regions of magma generation. The Ni coptent (1,050-1,100 ppm) in the serpentines and magnesites support pyroxenite parentage.
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  • Origin of Chromite Pyroxenites from Kondapalli, Andhra Pradesh

Abstract Views: 178  |  PDF Views: 132

Authors

A. T. Rao
Department of Geology, Andhra University, Waltair 530003, India

Abstract


The chromite pyroxenite nodules of Kondapalli region were brought from deeper levels of the earth by spinel pyrofenite magma during cross folding in the Eastern Ghats. The spinel pyroxenites were transformed into the mineral assemblage: serpentine-gamet-magnesite-calcite-quartz, due to the activity of volatiles derived from the regions of magma generation. The Ni coptent (1,050-1,100 ppm) in the serpentines and magnesites support pyroxenite parentage.