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

Vinod Kumar ¹, P. S. Agarkar ²

Affiliations
1 Geological Survey of India, Petrology Division Aliganj Extension, Lucknow 226020, IN
2 Department of Geology, Government Science College, Jabalpur, 482001 M.P., IN

Abstract

Alkali olivine basalts of Jungel metavolcanic suite in Bijawar greenstone belt of Central India display various morphologies of quench crystals indicative of rapid cooling or supercooling. There is resemblance between crystal growths of the present area and those described from submarine basalts and experimentally produced crystals under disequilibrium conditions. Stratigraphy, structural and petrographic characters of these rocks demonstrate that they represent an ancient oceanic crust.

Keywords

Petrology, Genesis, Quench-Texture, Basalt, Jungel-Valley, Bijawar Greenstone Belt, Mirzapur, Uttar Pradesh.

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