Artificial peridotite takes its gold coat off
by Thomas P. Ferrand, Earthquake Research Institute, Tokyo, Japan
Photograph taken through a binocular during a critical step: extraction of artificial peridotite from its gold capsule.
The sample is a little cylinder, 3 mm long with a diameter of 2.1 mm, sintered from micrometric powders of San Carlos olivine and Corsica antigorite.
Such samples have been used to reproduce earthquakes in the laboratory using a D-DIA apparatus. Thanks to them, a new model has come to explain intermediate-depth earthquakes: the DDST, "Dehydration-Driven Stress Transfer".
Taken on 6
February
2015
Submitted on 14 February 2018
Categories
- Earth Magnetism & Rock Physics (337)
- Geochemistry, Mineralogy, Petrology & Volcanology (831)
- Geodynamics (353)
- Interdisciplinary/Other (781)
- Laboratory (101)
- Seismology (208)
- Tectonics and Structural Geology (523)
Location
- Europe (3400)
- Western Europe (674)
- Germany (230)
- Exact location (7.2612 E, 51.4459 N)
Tags
olivine, earthquake, nature, tectonics, science, natural science, laboratory, san carlos, mantle, labquakes, tiny, ddst, dehydration, experiments, powder, antigorite, small, analogue, peridotite
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Camera:
Panasonic DMC-FS62
Licence
Credit: Thomas P. Ferrand (distributed via imaggeo.egu.eu)
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