Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4742106 | Physics of the Earth and Planetary Interiors | 2010 | 6 Pages |
Abstract
In regions where a high pressure phase is in equilibrium with a low pressure phase, the bulk modulus defined by the P–V relationship is greatly reduced. Here we evaluate the effect of such transitions on the P wave velocity. A model, where cation diffusion is the rate limiting factor, is used to project laboratory data to the conditions of a seismic wave propagating in the two-phase region. We demonstrate that for the minimum expected effect there is a significant reduction of the seismic velocity, as large as 10% over a narrow depth range.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geophysics
Authors
Donald J. Weidner, Li Li,