Reevaluating Hendy Test with Modern Cave Calcite from the Monsoon Region of China
文献类型：期刊论文
| 作者 | Tian, Lijun7,8; Tao, Tao6,8; Duan, Wuhui8; Ruan, Jiaoyang5; Hu, Chaoyong4; Li, Yunxia3; Li, Xianglei2; Cheng, Hai1; Tan, Ming8 |
| 刊名 | MINERALS
 |
| 出版日期 | 2024-08-01 |
| 卷号 | 14期号:8页码:13 |
| 关键词 | Hendy Test Chinese stalagmites cave monitoring modern calcite precipitation oxygen and carbon isotopes isotopic fractionation |
| DOI | 10.3390/min14080747 |
| 通讯作者 | Tian, Lijun(ljtian@sjziam.ac.cn) ; Tan, Ming(tanming@mail.iggcas.ac.cn) |
| 英文摘要 | The Hendy Test is widely used for assessing whether isotopic equilibrium was reached in speleothems by examining the delta 18O and delta 13C correlation along a single growth layer. However, stalagmite micro-layers are typically only a few micrometers thick and taper off from the center towards the sides, making it challenging to sample within the same growth layer in practice. To address this, we selected three caves in the monsoon region of China (Shihua Cave in the north, Heshang Cave in the central, and Baojinggong Cave in the south) to verify whether the modern cave calcite has reached equilibrium fractionation with drip water. We examined the spatial variations in the delta 18O and delta 13C values of farmed calcite on glass plates, which are analogous to a single growth layer. The delta 18O and delta 13C correlations of farmed calcite from different cave sites are consistently strong, suggesting that kinetic fractionation effects are prevalent, especially at the drip sites with lower drip rates due to longer CO2 degassing. The delta 18O-delta 13C covariations can also occur along speleothem growth axes on short time scales, while isotopic variations over longer time scales are still in response to climate change. We propose that the Hendy Test criteria might not be prerequisites to isotopic equilibrium, and a Replication Test provides a more reliable indication of the integrity of isotopic proxies in paleoclimate research. |
| WOS关键词 | ASIAN MONSOON ; HESHANG CAVE ; DRIP WATERS ; OXYGEN ; SPELEOTHEMS ; STALAGMITE ; CARBON ; PRECIPITATION ; EQUILIBRIUM ; DELTA-O-18 |
| 资助项目 | National Natural Science Foundation of China ; [42106228] ; [42371164] |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:001305543800001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://119.78.100.205/handle/311034/23928]  |
| 专题 | 中国科学院古脊椎动物与古人类研究所 |
| 通讯作者 | Tian, Lijun; Tan, Ming |
| 作者单位 | 1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 712000, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 3.Hunan Normal Univ, Sch Geog Sci, Hunan Prov Key Lab Ecoenvironm Changes & Carbon Se, Changsha 410081, Peoples R China 4.China Univ Geosci, Sch Geog & Informat Engn, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 5.Pusan Natl Univ, Inst Basic Sci, Ctr Climate Phys, Busan 46241, South Korea 6.Chinese Acad Geol Sci, Inst Geomech, Beijing 100081, Peoples R China 7.Chinese Acad Sci, Inst Genet & Dev Biol, Ctr Agr Resources Res, Shijiazhuang 050021, Peoples R China 8.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Lijun,Tao, Tao,Duan, Wuhui,et al. Reevaluating Hendy Test with Modern Cave Calcite from the Monsoon Region of China[J]. MINERALS,2024,14(8):13. |
| APA | Tian, Lijun.,Tao, Tao.,Duan, Wuhui.,Ruan, Jiaoyang.,Hu, Chaoyong.,...&Tan, Ming.(2024).Reevaluating Hendy Test with Modern Cave Calcite from the Monsoon Region of China.MINERALS,14(8),13. |
| MLA | Tian, Lijun,et al."Reevaluating Hendy Test with Modern Cave Calcite from the Monsoon Region of China".MINERALS 14.8(2024):13. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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