Articles | Volume 16, issue 1
https://doi.org/10.5194/cp-16-17-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-16-17-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
07 Jan 2020
Research article |
| 07 Jan 2020
| 07 Jan 2020
Experimental evaluation of oxygen isotopic exchange between inclusion water and host calcite in speleothems
Graduate School of Environmental Studies, Nagoya University,
Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
Yudai Kina
Department of Chemistry, Biology, and Marine Science, Faculty of
Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213,
Japan
Chuan-Chou Shen
High-Precision Mass Spectrometry and Environment Change Laboratory
(HISPEC), Department of Geosciences, National Taiwan University, Taipei
10617, Taiwan
Research Center for Future Earth, National Taiwan University, Taipei
10617, Taiwan
Global Change Research Center, National Taiwan University, Taipei
10617, Taiwan
Kanako Omine
Department of Chemistry, Biology, and Marine Science, Faculty of
Science, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213,
Japan
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Rabiul H. Biswas, Frédéric Herman, Georgina E. King, Benjamin Lehmann, and Ashok K. Singhvi
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Short summary
The oxygen isotopic ratio of water in fluid inclusions in speleothems is an important proxy for the changes in past hydroclimate and temperatures. This isotopic ratio, however, may be affected by isotopic exchange between the water and the host calcite. Here we evaluate this exchange reaction based on a laboratory experiment. We demonstrated that the exchange was detectable but not significant for temperature reconstruction, likely because the reaction occurred only with a thin calcite layer.
The oxygen isotopic ratio of water in fluid inclusions in speleothems is an important proxy for...
