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Glass and Mineral Chemistry of Northern Central Indian Ridge Basalts:Compositional Diversity and Petrogenetic Significance |
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| Authors: | Dwijesh RAY Ranadip BANERJEE Sridhar D IYER Basavaraju BASAVALINGU Subir MUKHOPADHYAY National Centre for Antarctic Ocean Research Goa India National Institute of Oceanography CSIR Dona Paula Goa India |
| Institution: | [1]National Centre for Antarctic and Ocean Research, Goa 403804, India [2]National Institute of Oceanography, CSIR, Dona Paula, Goa 403004, India [3]Department of Studies in Geology, University of Mysore, Mysore 570006, India [4]Department of Geological Sciences, Jadavpur University, Kolkata 700032, India |
| Abstract: | The glass and mineral chemistry of basalts examined from the northern central Indian ridge (NCIR) provides an insight into magma genesis around the vicinity of two transform faults: Vityaz (VT) and Vema (VM). The studied mid-ocean ridge basalts (MORBs) from the outer ridge flank (VT area) and a near-ridge seamount (VM area) reveal that they are moderately phyric plagioclase basalts composed of plagioclase (phenocryst An60-90] and groundmass An35-79]), olivine (Fo81-88), diopside (Wo45-51, En25-37, Fs14-24... |
| Keywords: | mineral chemistry fractional crystallization petrogenesis northern central Indian ridge |
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