Constraint of lattice-preferred orientation (LPO) on Vp anisotropy of amphibole-rich rocks

Keigo Kitamura

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Abstract

The Vp anisotropies of two amphibole-rich rocks and two biotite-amphibole-rich rocks were measured under high-pressure conditions (up to 1.0 GPa), and calculated based on the physical properties and lattice-preferred orientation (LPO) of amphibole and biotite. The results of these studies clearly demonstrated the strong effects of the LPO of amphibole and biotite on Vp anisotropies. Previous studies pointed out the importance of [001] of amphibole and (001) of biotite for Vp anisotropy. In addition to these axes and poles, (100) of amphibole strongly affected the Vp anisotropy of the sample rocks.

Original languageEnglish
Pages (from-to)1058-1065
Number of pages8
JournalGeophysical Journal International
Volume165
Issue number3
DOIs
Publication statusPublished - Jun 1 2006
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Geophysics
  • Geochemistry and Petrology

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