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Deep ocean nutrients during the Last Glacial Maximum deduced from sponge silicon isotopic compositions

Abstract:

The relative importance of biological and physical processes within the Southern Ocean for the storage of carbon and atmospheric pCO₂ on glacial-interglacial timescales remains uncertain. Understanding the impact of surface biological production on carbon export in the past relies on the reconstruction of the nutrient supply from upwelling deep waters. In particular, the upwelling of silicic acid (Si(OH)₄) is tightly coupled to carbon export in the Southern Ocean via diatom productivity. Here...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.epsl.2010.02.005

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Institution:
"Woods Hole Oceanographic Institution, Woods Hole, MA, USA", "University of Oxford"
Department:
Mathematical,Physical & Life Sciences Division - Earth Sciences
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Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Earth Sciences
More by this author
Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Earth Sciences
More by this author
Institution:
Woods Hole Oceanographic Institution, Woods Hole, MA, USA
Department:
Department of Marine Chemistry and Geochemistry
More by this author
Institution:
University of Oxford
Department:
Mathematical,Physical & Life Sciences Division - Earth Sciences
Antarctic Science Bursary More from this funder
Publisher:
Elsevier Publisher's website
Journal:
Earth and Planetary Science Letters Journal website
Volume:
292
Issue:
3-4
Pages:
290-300
Publication date:
2010-04-05
DOI:
ISSN:
0012-821X
URN:
uuid:9a8f27ff-aff5-48c9-9e97-8d0090d38fdf
Local pid:
ora:3617

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