Calibration of the carbonate clumped isotope thermometer of land snail shells
文献类型：期刊论文
| 作者 | Bao, Rui3,4; Sheng, Xuefen3; Li, Chenglong3; Cui, Can2; Yan, Hao1; Ji, Junfeng3; Chen, Jun3 |
| 刊名 | CHEMICAL GEOLOGY
 |
| 出版日期 | 2023-12-20 |
| 卷号 | 641页码:14 |
| ISSN号 | 0009-2541 |
| 关键词 | Land snail shell Culturing experiment Carbonate clumped isotope Vital effects Terrestrial temperature proxy |
| DOI | 10.1016/j.chemgeo.2023.121773 |
| 通讯作者 | Bao, Rui(baorui@njnu.edu.cn) ; Sheng, Xuefen(shenxuer@nju.edu.cn) |
| 英文摘要 | The application of carbonate clumped isotopes (Delta 47) as a temperature proxy has been widely investigated in many types of carbonate materials, including biogenic carbonates such as foraminifera and corals. However, their application to land snails is relatively rare and it remains controversial whether shell carbonate Delta 47 is impacted by biologically-driven fractionation. These uncertainties may stem from the lack of precise temperature-controlled calibration samples in previous natural-environment-based studies. In this study we cultured two species of land snail with different environmental tolerances: the thermo-humidiphilous Achatina fulica (A. fulica), and the cold-aridiphilous Cathaica fasciola (C. fasciola), under strictly controlled temperature conditions, covering the growth temperature range of 15-33 degrees C. The results show that the shell Delta 47 values for both A. fulica and C. fasciola had statistically significant negative correlations with the culturing temperature within their respective optimum temperature ranges (A. fulica: 25-33 degrees C, C. fasciola: 15-25 degrees C). However, shell Delta 47 values for A. fulica at lower temperatures (20 degrees C in this study) and those for C. fasciola showed a negative deviation from the expected equilibrium values. We attribute the lower-than-equilibrium values to the existence of a vital effect in individual snail species, and more specifically, to the CO2 degassing associated with dehydration/dehydroxylation during carbonate precipitation in the snail's calcifying fluid. |
| WOS关键词 | TEMPERATURE-DEPENDENCE ; C-13-O-18 BONDS ; WATER CORALS ; FRACTIONATION ; SIGNATURES ; CALCITE ; CLIMATE ; OXYGEN ; SPELEOTHEMS ; DEPRESSION |
| 资助项目 | National Natural Science Foundation of China[42373062] ; National Natural Science Foundation of China[42102230] ; National Natural Science Foundation of China[42030503] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001096588300001 |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/43206]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Bao, Rui; Sheng, Xuefen |
| 作者单位 | 1.Nanjing Univ, Int Ctr Isotope Effects Res, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 3.Nanjing Univ, Sch Earth Sci & Engn, Key Lab Surficial Geochem, Minist Educ, Nanjing 210023, Peoples R China 4.Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Resou, Sch Geog, Key Lab Virtual Geog Environm,Minist Educ, Nanjing 210023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bao, Rui,Sheng, Xuefen,Li, Chenglong,et al. Calibration of the carbonate clumped isotope thermometer of land snail shells[J]. CHEMICAL GEOLOGY,2023,641:14. |
| APA | Bao, Rui.,Sheng, Xuefen.,Li, Chenglong.,Cui, Can.,Yan, Hao.,...&Chen, Jun.(2023).Calibration of the carbonate clumped isotope thermometer of land snail shells.CHEMICAL GEOLOGY,641,14. |
| MLA | Bao, Rui,et al."Calibration of the carbonate clumped isotope thermometer of land snail shells".CHEMICAL GEOLOGY 641(2023):14. |
入库方式： OAI收割
来源：南京地质古生物研究所
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