Stable Isotopic Stratification and Growth Patterns of Ground Ice in Permafrost on the Qinghai-Tibet Plateau, China
文献类型：期刊论文
| 作者 | Yang, Yuzhong; Wu, Qingbai; Jiang, Guanli; Zhang, Peng |
| 刊名 | PERMAFROST AND PERIGLACIAL PROCESSES
 |
| 出版日期 | 2017 |
| 卷号 | 28期号:1页码:119-129 |
| 关键词 | Qinghai-Tibet Plateau ground ice stable isotope permafrost |
| ISSN号 | 1045-6740 |
| DOI | 10.1002/ppp.1892 |
| 通讯作者 | Wu, Qingbai(qbwu@lzb.ac.cn) |
| 英文摘要 | Stable isotope analysis of ground ice from a deep borehole in permafrost in the Kunlun Mountain Pass on the Qinghai-Tibet Plateau, China, was carried out to assess the water source and origin of the ground ice. Five sections were isotopically distinguished in the borehole. The ground-ice samples had O-18 values ranging from -20.2 to -8.5 parts per thousand (mean: -11.0 parts per thousand), D values from -151.9 to -73.1 parts per thousand (mean: -84.9 parts per thousand) and D-excess values from -16.7 to 9.8 parts per thousand (mean: 2.7 parts per thousand). The isotopic contents and the freezing line (S-O-D(18) = 6.86) of ground-ice samples in the five sections showed significant deviations from modern isotopic values of regional precipitation and surface water, indicating discrepancies in the replenishment of source water and different climatic conditions during periods of ice formation. Near-surface ground ice (0-3 m depth) (D-excess: 9.8 parts per thousand) formed mainly from modern precipitation, whereas deep ground ice was related to the source water and freezing conditions during ice formation. Ground ice from 3.8 to 9.6 m and from 9.6 to 16 m is segregated in origin and a stable freezing front at 9.6 m was identified. Ground ice from 16 to 50 m was replenished by precipitation in the period during ground-ice formation. Between 50 and 91.3 m, ground ice formed in an unstable climate and a palaeo-permafrost table at 91.3m was distinguished. Copyright (c) 2016 John Wiley & Sons, Ltd. |
| 收录类别 | SCI |
| WOS关键词 | SIBERIAN PERMAFROST ; CANADA ; PRECIPITATION ; WATER ; ANTARCTICA ; NORTH ; GEOCHEMISTRY ; MOISTURE ; REGIONS ; ORIGIN |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000394429900010 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557604 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wu, Qingbai |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, State Key Lab Frozen Soil Engn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yuzhong,Wu, Qingbai,Jiang, Guanli,et al. Stable Isotopic Stratification and Growth Patterns of Ground Ice in Permafrost on the Qinghai-Tibet Plateau, China[J]. PERMAFROST AND PERIGLACIAL PROCESSES,2017,28(1):119-129. |
| APA | Yang, Yuzhong,Wu, Qingbai,Jiang, Guanli,&Zhang, Peng.(2017).Stable Isotopic Stratification and Growth Patterns of Ground Ice in Permafrost on the Qinghai-Tibet Plateau, China.PERMAFROST AND PERIGLACIAL PROCESSES,28(1),119-129. |
| MLA | Yang, Yuzhong,et al."Stable Isotopic Stratification and Growth Patterns of Ground Ice in Permafrost on the Qinghai-Tibet Plateau, China".PERMAFROST AND PERIGLACIAL PROCESSES 28.1(2017):119-129. |
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来源：寒区旱区环境与工程研究所
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