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The scale and origin of the osmium isotope variations in mid-ocean ridge basalts

Abstract:

The decay of 187Re to 187Os provides a unique tracer of recycled lithosphere in the Earth's upper mantle, and the radiogenic Os isotope compositions of many mid-ocean ridge basalts (MORB) have been taken to indicate the presence of recycled oceanic crust in the mantle source. However, others have attributed the data to contamination by seawater or an age effect (due to 187Re decay following igneous crystallisation). This study presents new Re-Os, U-Th-Ra and B...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.epsl.2007.05.014

Authors


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Institution:
Open University, Milton Keynes, UK
Department:
Department of Earth Science
More by this author
Institution:
Open University, Milton Keynes, UK
Department:
Department of Earth Science
More by this author
Institution:
Open University, Milton Keynes, UK
Department:
Department of Earth Science
More by this author
Institution:
Open University, Milton Keynes, UK
Department:
Department of Earth Science
More by this author
Institution:
Université Blaise-Pascal, Clermont-Ferrand, France
Department:
Laboratoire Magmas et volcans
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Publisher:
Elsevier Publisher's website
Journal:
Earth and Planetary Science Letters Journal website
Volume:
259
Issue:
3-4
Pages:
541-556
Publication date:
2007-07-05
DOI:
ISSN:
0012-821X
URN:
uuid:c758ac1e-b46f-4c01-900e-8aaa47b57441
Local pid:
ora:5085

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