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Calcium isotopes in caves as a proxy for aridity: Modern calibration and application to the 8.2 kyr event

Abstract:

We present the first study of Ca isotope cycling in a natural cave system, with measurements of bedrock, dripwater and recently formed carbonate, coupled to a first stalagmite time-series spanning the 8.2 kyr event. Dripwaters at Heshang Cave (Central China; 30°27’ N, 110°25’E) are isotopically heavy relative to the dolomite bedrock, the result of prior calcite precipitation (PCP) occurring earlier in the drip flow path. A simple Rayleigh fractionation model quantifies the extent of PCP in...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1016/j.epsl.2016.03.027

Authors


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Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Earth Sciences
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Publisher:
Elsevier Publisher's website
Journal:
Earth and Planetary Science Letters Journal website
Volume:
443
Pages:
129–138
Publication date:
2016-03-05
DOI:
ISSN:
1385-013X
URN:
uuid:66730410-5fd0-44bc-983d-f553ee3f16a8
Source identifiers:
610161
Local pid:
pubs:610161

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