The acoustic emissions signature of a pressure-induced polytypic transformation in chlorite

D.P. Dobson; Almar de Ronde; M.D. Welch; P.G. Meredith

doi:10.2138/am.2007.2389

The acoustic emissions signature of a pressure-induced polytypic transformation in chlorite

D.P. Dobson, Almar de Ronde, M.D. Welch, P.G. Meredith

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Abstract

We present results of an acoustic emissions (AE) study of single crystals of chromian-clinochlore during compression to 10 GPa at room temperature. Distinct AE are detected associated with the type Ia Ib transition at 6 GPa. Analysis of AE source locations and first motions at transducers are consistent with a rapid collapse of the c-axis of the sample and AE originating within the sample and not the surrounding pressure medium. This is the first time that AE have been detected directly from a phase transformation in the multi-anvil press and opens new possibilities for kinetic studies and studies of deep-seismogenesis.

Original language	English
Pages (from-to)	437-440
Journal	American Mineralogist
Volume	92
Issue number	2-3
DOIs	https://doi.org/10.2138/am.2007.2389
Publication status	Published - 2007

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title = "The acoustic emissions signature of a pressure-induced polytypic transformation in chlorite",

abstract = "We present results of an acoustic emissions (AE) study of single crystals of chromian-clinochlore during compression to 10 GPa at room temperature. Distinct AE are detected associated with the type Ia Ib transition at 6 GPa. Analysis of AE source locations and first motions at transducers are consistent with a rapid collapse of the c-axis of the sample and AE originating within the sample and not the surrounding pressure medium. This is the first time that AE have been detected directly from a phase transformation in the multi-anvil press and opens new possibilities for kinetic studies and studies of deep-seismogenesis.",

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AU - de Ronde, Almar

AU - Welch, M.D.

AU - Meredith, P.G.

PY - 2007

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AB - We present results of an acoustic emissions (AE) study of single crystals of chromian-clinochlore during compression to 10 GPa at room temperature. Distinct AE are detected associated with the type Ia Ib transition at 6 GPa. Analysis of AE source locations and first motions at transducers are consistent with a rapid collapse of the c-axis of the sample and AE originating within the sample and not the surrounding pressure medium. This is the first time that AE have been detected directly from a phase transformation in the multi-anvil press and opens new possibilities for kinetic studies and studies of deep-seismogenesis.

U2 - 10.2138/am.2007.2389

DO - 10.2138/am.2007.2389

M3 - Article

SN - 0003-004X

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SP - 437

EP - 440

JO - American Mineralogist

JF - American Mineralogist

IS - 2-3

ER -

The acoustic emissions signature of a pressure-induced polytypic transformation in chlorite

Abstract

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