Amorphization of Serpentine at High Pressure and High Temperature
- 7 June 1996
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 272 (5267) , 1468-1470
- https://doi.org/10.1126/science.272.5267.1468
Abstract
Pressure-induced amorphization of serpentine was observed at temperatures of 200° to 300°C and pressures of 14 to 27 gigapascals with a combination of a multianvil apparatus and synchrotron radiation. High-pressure phases then crystallized rapidly when the temperature was increased to 400°C. These results suggest that amorphization of serpentine is an unlikely mechanism for generating deep-focus earthquakes, as the temperatures of subducting slabs are significantly higher than those of the rapid crystallization regime.Keywords
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