| A comparative study on the stable isotopes from precipitation to speleothem in four caves of Guizhou, China | |
| Weijun Luo; Shijie Wang; Xingneng Xie | |
| 2013 | |
| Source Publication | Chemie der Erde - Geochemistry
 |
| Volume | 73Issue:2Pages:205-215 |
| Abstract | Monitoring and sampling of soil waters, and cave drip waters were performed monthly at four caves of Guizhou, Southwest China, from April 2003 to May 2004, in order to comparatively study the control factors of stable isotope in drip waters and their corresponding speleothems. delta D and delta O-18 were measured for all samples including precipitation, soil waters, drip waters and modern speleothems. These results indicate that the amplitudes of the isotope values decrease gradually from precipitation to drip water in these caves, obviously suggesting the homogenization. Under certain conditions, it is possible to use speleothems to study high resolution (seasonal, even monthly) paleoclimatic changes in Liangfeng Cave (LFC) and Qixing Cave (QXC), but only low resolutions (more than a year) could be reached in Jiangjun Cave (JJC) and Xiniu Cave (XNC). The relationships between local meteoric water line (LMWL) and isotopic data of fluid inclusions in speleothems from the four caves can estimate local paleoclimate and paleoenvironment; however, it is debatable whether d-excess values can predict them. The effects of hydrological processes on the delta O-18 values in drip waters cannot be ignored. Hydrochemistry may cause isotopic disequilibrium in the formation of speleothems. |
| Keyword | Stable Isotopes Cave Drip Water Soil Water Precipitation Speleothem Guizhou China |
| Subject Area | 环境地球化学 |
| Indexed By | SCI |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.gyig.ac.cn/handle/352002/5046 |
| Collection | 环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文 |
| Recommended Citation GB/T 7714 | Weijun Luo,Shijie Wang,Xingneng Xie. A comparative study on the stable isotopes from precipitation to speleothem in four caves of Guizhou, China[J]. Chemie der Erde - Geochemistry,2013,73(2):205-215. |
| APA | Weijun Luo,Shijie Wang,&Xingneng Xie.(2013).A comparative study on the stable isotopes from precipitation to speleothem in four caves of Guizhou, China.Chemie der Erde - Geochemistry,73(2),205-215. |
| MLA | Weijun Luo,et al."A comparative study on the stable isotopes from precipitation to speleothem in four caves of Guizhou, China".Chemie der Erde - Geochemistry 73.2(2013):205-215. |
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