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Low-Frequency Measurements of Seismic Moduli and Attenuation in Antigorite Serpentinite

David, Emmanuel; Brantut, Nicolas; Hansen, Lars N.; Jackson, Ian


Laboratory measurements of seismic moduli and attenuation in antigorite serpentinite at a confining pressure of 200 MPa and temperatures up to 550 °C provide new results relevant to the interpretation of geophysical data in subduction zones. A polycrystalline antigorite specimen was tested via forced oscillations at small strain amplitudes and seismic frequencies (millihertz to hertz). The shear modulus has a temperature sensitivity, ∂G/∂T, averaging −0.017 GPa/K. Increasing temperature above...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
Source: Geophysical Research Letters
DOI: 10.1029/2018GL081271
Access Rights: Open Access


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