Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1130/G32953.1 |
Massive atmospheric nitrate accumulation in a continental interior desert, northwestern China | |
Qin, Yan1; Li, Yanhe1; Bao, Huiming2; Liu, Feng1; Hou, Kejun1; Wan, Defang1; Zhang, Cheng3 | |
通讯作者 | Qin, Yan |
来源期刊 | GEOLOGY |
ISSN | 0091-7613 |
出版年 | 2012 |
卷号 | 40期号:7页码:623-626 |
英文摘要 | Large-scale nitrate deposits are rare on Earth’s surface due to the high solubility of nitrate minerals. Exceptions are found in extremely old (to 14 m.y.) and hyperarid deserts such as the Atacama Desert in northern Chile, or the McMurdo Dry Valleys in Antarctica. The nitrate in both of these regions has been determined to originate from atmospheric oxidation of NOx. Here we report a new type of massive atmospheric nitrate deposit, with resources equivalent to the Atacama deposits, in the Turpan-Hami area, northwestern China. This deposit is characterized by (1) a location in the center of a large continent; (2) young age (Pleistocene); (3) general enrichment near the surface rather than at depth; and (4) high spatial variability in the nitrogen and triple oxygen isotope composition within this arid region, the delta N-15 ranging from 0.7 parts per thousand to 27.6 parts per thousand, delta O-18 from 30.2 parts per thousand to 46.7 parts per thousand, and Delta O-17 from 5.9 parts per thousand to 20.7 parts per thousand. The Turpan-Hami nitrate deposit nitrogen and triple oxygen isotope composition is closely between those of the Mojave Desert (southwestern United States) and the Atacama Desert, suggesting that (1) Earth’s low-middle latitudes (i.e., non-polar sites) have been receiving atmospheric nitrate deposition of similar nitrogen and triple oxygen isotope composition; and (2) local or regional isotope differences in nitrate deposits can be attributed to postdepositional processes, namely the difference in aridity and associated microbial activities. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000305818900012 |
WOS关键词 | OXYGEN ISOTOPIC COMPOSITIONS ; TURPAN-HAMI BASIN ; ATACAMA DESERT ; NORTHERN CHILE ; MIOCENE AGE ; DEPOSITS ; XINJIANG ; ORIGIN ; DELTA-O-17 ; NITROGEN |
WOS类目 | Geology |
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/2XILL650/172550 |
作者单位 | 1.Chinese Acad Geol Sci, Inst Mineral Resources, Key Lab Metallogeny & Mineral Assessment, Beijing 100037, Peoples R China; 2.Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA; 3.China Univ Geosci, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Qin, Yan,Li, Yanhe,Bao, Huiming,et al. Massive atmospheric nitrate accumulation in a continental interior desert, northwestern China[J],2012,40(7):623-626. |
APA | Qin, Yan.,Li, Yanhe.,Bao, Huiming.,Liu, Feng.,Hou, Kejun.,...&Zhang, Cheng.(2012).Massive atmospheric nitrate accumulation in a continental interior desert, northwestern China.GEOLOGY,40(7),623-626. |
MLA | Qin, Yan,et al."Massive atmospheric nitrate accumulation in a continental interior desert, northwestern China".GEOLOGY 40.7(2012):623-626. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。