Affiliation:
1. Departamento de Estratigrafía y Paleontología Universidad de Granada Granada España
2. Archaeology Environmental Changes and Geo‐Chemistry Vrije Universiteit Brussel Brussel Belgium
3. Royal Belgian Institute of Natural Sciences Natural Environments Freshwater Biology Brussels Belgium
4. Department of Biology Ghent University Ghent Belgium
Abstract
AbstractThis study presents a methodological advancement in the field of clumped‐isotope (∆47) thermometry, specifically tailored for application to freshwater ostracods. The novel ostracod clumped isotope approach enables quantitative temperature and hydrological reconstruction in lacustrine records. The relationship between ∆47 and the temperature at which ostracod shell mineralized is determined by measuring ∆47 on different species grown under controlled temperatures, ranging from 4 ± 0.8 to 23 ± 0.5ºC. The excellent agreement between the presented ∆47 ostracod data and the monitored temperatures confirms that ∆47 can be applied to ostracod shells and that a vital effect is absent outside the uncertainty of measurements. Results are consistent with the carbonate clumped‐isotope unified calibration (Anderson et al., 2021, https://doi.org/10.1029/2020gl092069), therefore, an ostracod‐specific calibration is not needed. The ostracod clumped‐isotope thermometer represents a powerful tool for terrestrial paleoclimate studies all around the world, as lakes and ostracods are found in all climatic belts.
Funder
Consejería de Conocimiento, Investigación y Universidad, Junta de Andalucía
Fonds Wetenschappelijk Onderzoek
Vrije Universiteit Brussel
Vlaamse regering
Publisher
American Geophysical Union (AGU)
Cited by
2 articles.
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