Early and Late Alkali Igneous Pulses and a High-3He Plume Origin for the Deccan Flood Basalts.

AR, Basu; PR, Renne; DK, Dasgupta; F, Teichmann; RJ, Poreda

doi:10.1126/science.261.5123.902

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Early and Late Alkali Igneous Pulses and a High-3He Plume Origin for the Deccan Flood Basalts.

Shared by NobleBlocks on Aug 1, 1993 • 12:00 AM UTC

Authors:

Basu AR

Renne PR

Dasgupta DK

Abstract

Several alkalic igneous complexes of nephelinite-carbonatite affinities occur in extensional zones around a region of high heat flow and positive gravity anomaly within the continental flood basalt (CFB) province of Deccan, India. Biotites from two of the complexes yield (40)Ar/(39)Ar dates of 68.53...

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