Title: Giant Plagioclase Basalt from the Deccan Volcanic Province (DVP), Sagar District, Madhya Pradesh, India: First Report and Implications
Abstract: One giant plagioclase basalt GPB) flow from the northeast corner of the DVP, about 70 km south of Sagar, is reported for the first time. This GPB flow, over 40 m in thickness, is exposed approximately for 15 sq. km area and overlies a fine-grained, non-porphyritic basalt at 40 m depth in a borehole. Plagioclase phenocrysts, 4–5 cm in length, and occasionally larger, range in composition from bytownite-labradorite (An80–60). Clinopyroxene phenocrysts though present, are rare. Major and trace element chemistry of the GPB and the non-porphyritic basalt below is presented and discussed in comparison to the well-known GPBs from Western Ghats as also those reported later from Jhabua and Jabalpur districts in Madhya Pradesh. Among other differences, MgO content of the Sagar GPB (6.13%) seems to be the highest of all the GPBs reported from DVP so far.
Publication Year: 2019
Publication Date: 2019-08-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 8
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