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Elements; June 2008; v. 4; no. 3; p. 165-170; DOI: 10.2113/GSELEMENTS.4.3.165
© 2008 Mineralogical Society of America
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Elastic Properties of Minerals: A Key for Understanding the Composition and Temperature of Earth's Interior

Jay D. Bass1, Stanislav V. Sinogeikin2 and Baosheng Li3

1 Geology Department, University of Illinois at Urbana-Champaign
1301 West Green Street, Urbana, IL 61801, USA
E-mail: jaybass{at}uiuc.edu
2 HPCAT and Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA
E-mail: ssinog{at}hpcat.aps.anl.gov
3 Mineral Physics Institute, Stony Brook University
Stony Brook, NY 11794-2100, USA
E-mail: bli{at}notes.cc.sunysb.edu

Seismological studies give us a high-definition 3-D picture of the Earth's interior in terms of seismic velocity and density. Near the surface, observations of these properties can be compared with rock samples. As we go deeper into the Earth, interpretation of seismic data is more difficult. Laboratory measurements of velocities and other elastic properties of minerals are the key to understanding this seismic information, allowing us to translate it into quantities such as chemical composition, mineralogy, temperature, and preferred orientation of minerals. Here we present a description of modern techniques for measuring elastic properties at high pressures and temperatures, emphasizing those most relevant to understanding the interior of the Earth and other planets.

KEYWORDS: elastic properties, mineral physics, Earth's mantle




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J. D. Bass and J. B. Parise
Deep Earth and Recent Developments in Mineral Physics
Elements, June 1, 2008; 4(3): 157 - 163.
[Abstract] [Full Text] [PDF]


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