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Melt Network Reorientation and Crystallographic Preferred Orientation Development in Sheared Partially Molten Rocks
We investigated the co‐evolution of melt, shape, and crystallographic preferred orientations (MPOs, SPOs, and CPOs) in experimentally deformed partially molten rocks, from which we calculated the influence of MPO and CPO on seismic anisotropy. Olivine‐basalt aggregates containing 2 to 4 wt% melt wer...
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Published in: | Geochemistry, geophysics, geosystems : G3 geophysics, geosystems : G3, 2023-09, Vol.24 (9), p.n/a |
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Main Authors: | , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | We investigated the co‐evolution of melt, shape, and crystallographic preferred orientations (MPOs, SPOs, and CPOs) in experimentally deformed partially molten rocks, from which we calculated the influence of MPO and CPO on seismic anisotropy. Olivine‐basalt aggregates containing 2 to 4 wt% melt were deformed in general shear at a temperature of 1,250°C under a confining pressure of 300 MPa at shear stresses of
τ
≤ 175 MPa to shear strains of
γ
≤ 2.3. Grain‐scale melt pockets developed a MPO parallel to the loading direction by
γ
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ISSN: | 1525-2027 1525-2027 |
DOI: | 10.1029/2023GC010927 |