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Title:Elasticity of Mantle Minerals: Composition, Pressure and Temperature Dependence
Author(s):Sinogeikin, Stanislav Valentinovich
Doctoral Committee Chair(s):Bass, Jay D.
Department / Program:Geology
Discipline:Geology
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:Ph.D.
Genre:Dissertation
Subject(s):Mineralogy
Abstract:An extrapolation of our data to transition zone pressure and temperature indicates that the shear and compressional impedance contrasts associated with beta- →gamma-(Mg,Fe)2SiO4 transition are sufficient to produce a resolvable discontinuity at 520 km even with a moderate (30--50%) amount of olivine. A single olivine content can explain both the 400 and 520 km discontinuities. High velocity gradients in the transition zone is explained by pyroxene → majorite transition rather than adiabatic compression of minerals.
Issue Date:1999
Type:Text
Language:English
Description:182 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1999.
URI:http://hdl.handle.net/2142/86553
Other Identifier(s):(MiAaPQ)AAI9945001
Date Available in IDEALS:2015-09-28
Date Deposited:1999


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