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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1029/2022GL099479
|2 doi
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|a pubmed24n1528.xml
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|a eng
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| 100 |
1 |
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|a de Winter, Niels J
|e verfasserin
|4 aut
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| 245 |
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|a Temperature Dependence of Clumped Isotopes (∆47) in Aragonite
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 09.09.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 The Authors.
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|a Clumped isotope thermometry can independently constrain the formation temperatures of carbonates, but a lack of precisely temperature-controlled calibration samples limits its application on aragonites. To address this issue, we present clumped isotope compositions of aragonitic bivalve shells grown under highly controlled temperatures (1-18°C), which we combine with clumped isotope data from natural and synthetic aragonites from a wide range of temperatures (1-850°C). We observe no discernible offset in clumped isotope values between aragonitic foraminifera, mollusks, and abiogenic aragonites or between aragonites and calcites, eliminating the need for a mineral-specific calibration or acid fractionation factor. However, due to non-linear behavior of the clumped isotope thermometer, including high-temperature (>100°C) datapoints in linear clumped isotope calibrations causes them to underestimate temperatures of cold (1-18°C) carbonates by 2.7 ± 2.0°C (95% confidence level). Therefore, clumped isotope-based paleoclimate reconstructions should be calibrated using samples with well constrained formation temperatures close to those of the samples
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|a Journal Article
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|a aragonite
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| 650 |
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4 |
|a clumped isotopes
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4 |
|a mollusk
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| 650 |
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4 |
|a paleoclimate
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| 650 |
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4 |
|a temperature
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| 700 |
1 |
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|a Witbaard, Rob
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kocken, Ilja J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Müller, Inigo A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, Jingjing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Goudsmit, Barbara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ziegler, Martin
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Geophysical research letters
|d 1984
|g 49(2022), 20 vom: 28. Okt., Seite e2022GL099479
|w (DE-627)NLM098182501
|x 0094-8276
|7 nnns
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| 773 |
1 |
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|g volume:49
|g year:2022
|g number:20
|g day:28
|g month:10
|g pages:e2022GL099479
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|u http://dx.doi.org/10.1029/2022GL099479
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