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Early alkaline magmatism in the Deccan Traps: Implications for plume incubation and lithospheric rifting

DSpace at IIT Bombay

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Title Early alkaline magmatism in the Deccan Traps: Implications for plume incubation and lithospheric rifting
 
Creator SHETH, HC
CHANDRASEKHARAM, D
 
Subject cretaceous tertiary boundary
flood basalts
mantle
india
evolution
origin
mahabaleshwar
geochemistry
crust
basalt
lithosphere
cretaceous-tertiary boundary
 
Description Significant lithospheric extension, which usually accompanies continental flood volcanism, has been generally thought to always follow the main volcanic episode. However, plume-derived, uncontaminated, early alkaline magmas from the Deccan Traps, India, indicate considerable lithospheric extension similar to 3 million yrs (MY) before the main tholeiitic phase. Indeed, such early alkaline magmatism known from many flood-basalt provinces of the world seems a necessary and natural consequence of plume head incubation, with lithospheric doming and rifting. (C) 1997
 
Publisher ELSEVIER SCIENCE BV
 
Date 2011-07-24T19:19:12Z
2011-12-26T12:47:51Z
2011-12-27T05:41:04Z
2011-07-24T19:19:12Z
2011-12-26T12:47:51Z
2011-12-27T05:41:04Z
1997
 
Type Article
 
Identifier PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 104(4), 371-376
0031-9201
http://dx.doi.org/10.1016/S0031-9201(97)00027-7
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6518
http://hdl.handle.net/10054/6518
 
Language en