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

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

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Title: Early alkaline magmatism in the Deccan Traps: Implications for plume incubation and lithospheric rifting
Author: SHETH, HC; CHANDRASEKHARAM, D
Abstract: 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
URI: 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
Date: 1997


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