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Clinopyroxenite xenoliths from the Deccan Trap lavas of Kutch and Mumbai

DSpace at IIT Bombay

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Title Clinopyroxenite xenoliths from the Deccan Trap lavas of Kutch and Mumbai
 
Creator CHANDRASEKHARAM, D
VINOD, KC
 
Subject ultramafic xenoliths
geochemistry
petrology
textures
basalts
mantle
 
Description Only a few occurrences of mantle xenoliths have been reported in the Deccan basalt province. These include the spinel peridotite and spinel Iherzolite from Kutch and clinopyroxenite (with minor olivine) from Murud-Janjira coast. We now report hitherto unknown clinopyroxenite xenoliths from Kutch and Powai. The Kutch xenoliths are accidental and the Powai xenoliths are cognate. The Kutch clinopyroxenite xenoliths appear to have been formed due to the reaction between the mantle, containing olivine and orthopyroxene, and carbonated alkaline magma at about 1100 degrees C and 17 kb pressure. The Powai xenolith represents cumulates of clinopyroxenes in the magma chamber which were picked up and brought up by a subsequent eruption.
 
Publisher CURRENT SCIENCE ASSN
 
Date 2011-07-21T05:21:24Z
2011-12-26T12:51:53Z
2011-12-27T05:38:37Z
2011-07-21T05:21:24Z
2011-12-26T12:51:53Z
2011-12-27T05:38:37Z
2000
 
Type Article
 
Identifier CURRENT SCIENCE, 78(5), 607-610
0011-3891
http://dspace.library.iitb.ac.in/xmlui/handle/10054/5796
http://hdl.handle.net/10054/5796
 
Language en