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Published May 15, 2005 | Version public
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Carbonate paleothermometry based on abundances of ^(13)C-^(18)O bonds

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Abstract

Urey's carbonate oxygen isotope paleothermometer is a milestone of paleoclimate research but constrains temperature only if the oxygen isotope composition of water from which carbonate grew is known. Moreover, difficulty in recognizing diagenetic overprinting has confounded the interpretation of carbonate oxygen isotope compositions for much of the geological record. We pesent a carbonate paleothermometer based on the formation of bonds between ^(13)C and ^(18)O. This ordering of rare isotopes can be described by the reaction: Ca^(13)C^(16)O_3 + Ca^(12)C^(18)O^(16)O_2 = Ca^(12)C^(16)O_3 + Ca^(13)C^(18)O^(16)O_2 rxn 1.

Additional Information

© 2005 Elsevier Ltd.

Additional details

Identifiers

Eprint ID
39384
DOI
10.1016/j.gca.2005.03.041
Resolver ID
CaltechAUTHORS:20130716-083842973

Dates

Created
2013-07-17
Created from EPrint's datestamp field
Updated
2021-11-09
Created from EPrint's last_modified field

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Caltech groups
Division of Geological and Planetary Sciences (GPS)