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Osmium isotope stratigraphy of a marine ferromanganese crust

Abstract:

Ferromanganese crusts provide records of long term change in ocean circulation and continental weathering. However, calibrating their age prior to 10 Ma has been entirely based on empirical growth rate models using Co concentrations, which have inherently large uncertainties and fail to detect hiatuses and erosional events. We present a new method for dating these crusts by measuring their osmium (Os) isotope record and matching it to the well-known marine Os isotope evolution of the past 80 ...

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Publication status:
Published

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Publisher copy:
10.1016/j.epsl.2005.07.016

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Journal:
EARTH AND PLANETARY SCIENCE LETTERS
Volume:
238
Issue:
1-2
Pages:
42-48
Publication date:
2005-09-30
DOI:
ISSN:
0012-821X
Source identifiers:
83366
Language:
English
Keywords:
Pubs id:
pubs:83366
UUID:
uuid:38e2c2a7-04c0-4fda-9714-f649e1fd002d
Local pid:
pubs:83366
Deposit date:
2012-12-19

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