Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s11430-011-4358-z |
N and O isotopes and the ore-forming mechanism of nitrate deposits in the Turpan-Hami Basin, Xinjiang, China | |
Qin Yan1; Li YanHe1; Liu Feng1; Hou KeJun1; Wan DeFang1; Zhang Cheng2 | |
通讯作者 | Li YanHe |
来源期刊 | SCIENCE CHINA-EARTH SCIENCES |
ISSN | 1674-7313 |
EISSN | 1869-1897 |
出版年 | 2012 |
卷号 | 55期号:2页码:213-220 |
英文摘要 | The recently discovered nitrate ore field in the Turpan-Hami Basin of western China represents an estimated resource of 2.5 billion tons, and is comparable in scale to the Atacama Desert super-scale nitrate deposit in Chile. The research on this area is rarely carried out, and the origin of the deposits remains uncertain. In this study, new methods were used to systematically analyze N and O isotopes in nitrate minerals collected from the Kumutage, Xiaocaohu, Wuzongbulak, Dawadi, Tuyugou, and Shaer ore deposits in the Turpan-Hami Basin. The data showed that the delta N-15(Air) value ranges from 0.7aEuro degrees to 27.6aEuro degrees, but mostly between 2aEuro degrees and 6aEuro degrees, which was similar to atmospheric NO (3) (-) . The O-18 was highly enriched with delta O-18(V-SMOW) varying from 30.2aEuro degrees to 46.7aEuro degrees. This differs from levels in deposits derived from microbial nitrogen fixation, but is similar to those in atmospheric nitrates. N and O isotopes data indicated that nitrate deposits in Turpan-Hami Basin must be the result of deposition of atmospheric nitrate particles. Although atmospheric nitrate particles are common, the nitrate deposits could form only under the condition of long-term extreme drought climate and very limited biological activity. This paper summarized the ore-forming mechanism of different types nitrate deposits based on their geological setting. |
英文关键词 | N and O isotopes nitrate deposits deposition of atmospheric nitrate particles Turpan-Haimi Basin |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000299508900005 |
WOS关键词 | GROUND-WATER ; OXYGEN ; NITROGEN ; DENITRIFICATION ; NITRIFICATION ; FRACTIONATION ; ORIGIN ; N-15 ; AQUIFER ; DESERT |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/174949 |
作者单位 | 1.Chinese Acad Geol Sci, Inst Mineral Resource, Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China; 2.China Univ Geosci, Fac Geosci & Resources, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Qin Yan,Li YanHe,Liu Feng,et al. N and O isotopes and the ore-forming mechanism of nitrate deposits in the Turpan-Hami Basin, Xinjiang, China[J],2012,55(2):213-220. |
APA | Qin Yan,Li YanHe,Liu Feng,Hou KeJun,Wan DeFang,&Zhang Cheng.(2012).N and O isotopes and the ore-forming mechanism of nitrate deposits in the Turpan-Hami Basin, Xinjiang, China.SCIENCE CHINA-EARTH SCIENCES,55(2),213-220. |
MLA | Qin Yan,et al."N and O isotopes and the ore-forming mechanism of nitrate deposits in the Turpan-Hami Basin, Xinjiang, China".SCIENCE CHINA-EARTH SCIENCES 55.2(2012):213-220. |
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