Climate of the Past
Climate of the Past
CP
Articles | Volume 21, issue 9
Articles | Volume 21, issue 9
https://doi.org/10.5194/cp-21-1553-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-21-1553-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 9
Research article
 | 
08 Sep 2025
Research article |  | 08 Sep 2025

Tropical temperature evolution across two glacial cycles derived from speleothem fluid inclusion microthermometry

Yves Krüger, Leonardo Pasqualetto, Alvaro Fernandez, Kim M. Cobb, and A. Nele Meckler

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Latest update: 02 Oct 2025
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Short summary
Using a stalagmite from Whiterock Cave (Gunung Mulu National Park, Northern Borneo), covering the time interval from 460000 to 333000 years B.P., including two glacial terminations, we employed nucleation-assisted fluid inclusion microthermometry to reconstruct a tropical cave temperature record. The record reveals an amplitude of glacial-interglacial temperature changes of 4.2 °C and a strong linear correlation with Antarctic temperature anomalies, yielding a polar amplification factor of 2.3.
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