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Combining seawater Th-232 and Th-230 concentrations to determine dust fluxes to the surface ocean

Abstract:

Aeolian dust is a significant source of iron and other nutrients to the surface ocean, but constraining the size of this flux is difficult. Chemical tracers, such as Al, are useful, but are limited by lack of information about their rate of removal from surface seawater. In this study, we test the use of Th isotopes as an improved tracer of dust input by measuring 232Th and 230Th concentrations of upper-ocean seawater at six stations along a meridional Atlantic section that spans the Saharan ...

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Publication status:
Published

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Publisher copy:
10.1016/j.epsl.2011.10.022

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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
Role:
Author
Journal:
EARTH AND PLANETARY SCIENCE LETTERS
Volume:
312
Issue:
3-4
Pages:
280-290
Publication date:
2011-12-15
DOI:
ISSN:
0012-821X
URN:
uuid:3eb72a4c-de11-4982-9d42-961651f1bfb8
Source identifiers:
216345
Local pid:
pubs:216345

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