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Simulating weathering of basalt on Mars and Earth by thermal cycling

Abstract:

Physical weathering induced by heating and cooling may cause rock breakdown on Mars and Earth. We report results from parallel weathering simulations on basalt blocks exposed to diurnal cycles representing Mars-like (two simulation runs from -55 to +20 oC and -75 to +10 oC, 1-100% relative humidity, 4-8 mbar pressure, CO2 atmosphere) and hot arid Earth (23-72o C, 30-100% relative humidity) conditions. Under Earth conditions, thermally pre-stressed blocks showed measurable strength declines, w...

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Publication status:
Published

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Publisher copy:
10.1029/2010GL043522

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atmos Ocean and Planet Physics
Role:
Author
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Journal:
GEOPHYSICAL RESEARCH LETTERS
Volume:
37
Issue:
18
Pages:
n/a-n/a
Publication date:
2010-09-22
DOI:
ISSN:
0094-8276
URN:
uuid:74c9d7ca-ebe5-45b2-b447-7f5b718a4a9a
Source identifiers:
115572
Local pid:
pubs:115572
Language:
English

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