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The contemporary degassing rate of 40Ar from the solid Earth.

Abstract:

Knowledge of the outgassing history of radiogenic (40)Ar, derived over geologic time from the radioactive decay of (40)K, contributes to our understanding of the geodynamic history of the planet and the origin of volatiles on Earth's surface. The (40)Ar inventory of the atmosphere equals total (40)Ar outgassing during Earth history. Here, we report the current rate of (40)Ar outgassing, accessed by measuring the Ar isotope composition of trapped gases in samples of the Vostok and Dome C deep ...

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Publication status:
Published

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Publisher copy:
10.1073/pnas.0711679105

Authors


Bender, ML More by this author
Barnett, B More by this author
Dreyfus, G More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Journal:
Proceedings of the National Academy of Sciences of the United States of America
Volume:
105
Issue:
24
Pages:
8232-8237
Publication date:
2008-06-05
DOI:
EISSN:
1091-6490
ISSN:
0027-8424
URN:
uuid:f4cf50f0-f5ec-46f3-98a7-0277beb8b9f9
Source identifiers:
82809
Local pid:
pubs:82809
Language:
English
Keywords:

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