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Ar and K partitioning between clinopyroxene and silicate melt to 8 GPa

Abstract:

The relative incompatibility of Ar and K are fundamental parameters in understanding the degassing history of the mantle. Clinopyroxene is the main host for K in most of the upper mantle, playing an important role in controlling the K/Ar ratio of residual mantle and the subsequent time-integrated evolution of 40Ar/36Ar ratios. Clinopyroxene also contributes to the bulk Ar partition coefficient that controls the Ar degassing rate during mantle melting. The partitioning of Ar and K between clin...

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Publication status:
Published

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Authors


Chamorro, EM More by this author
Brooker, RA More by this author
Wartho, JA More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Kelley, SP More by this author
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Journal:
GEOCHIMICA ET COSMOCHIMICA ACTA
Volume:
66
Issue:
3
Pages:
507-519
Publication date:
2002-02-05
DOI:
ISSN:
0016-7037
URN:
uuid:0cd9db95-820d-44c5-b446-71af78bbcc7f
Source identifiers:
163775
Local pid:
pubs:163775
Language:
English

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