Selenium, arsenic and molybdenum variation and bio-radiation in the Ediacaran-Cambrian interval
文献类型：期刊论文
| 作者 | Tian, Xinglei1,2; Luo, Kunli1 |
| 刊名 | PRECAMBRIAN RESEARCH
 |
| 出版日期 | 2017-05-01 |
| 卷号 | 292页码:378-385 |
| 关键词 | Ediacaran and early Cambrian Selenium Arsenic and molybdenum Variation Bio-radiation Yangtze Gorges area |
| ISSN号 | 0301-9268 |
| DOI | 10.1016/j.precamres.2017.02.007 |
| 通讯作者 | Luo, Kunli(luokl@igsnrr.ac.cn) |
| 英文摘要 | The Ediacaran-early Cambrian period is critical for the evolution of multicellular life. However, the distribution and enrichment patterns of biological trace elements and their correlations with the biochanges are not yet fully understood. Here we present the variation patterns of trace elements in the Yangtze Gorges area, South China. Compared to the upper continental crust, selenium (Se), cadmium (Cd), arsenic (As), and molybdenum (Mo) are the most enriched and varied trace elements in the whole Ediacaran and early Cambrian Formations, the concentrations of which vary from 10(-5)> to 30.1, 0.02 to 163.1, 5 x 10(-5)> to 196.5, and 0.02 to 289.0 mg/kg, respectively, with average values of 1.3, 1.0, 14.0, and 8.0 mg/kg, average enrichment factors (EF) of 27.0, 10.7, 9.7, and 5.4, and EF variations of 601.2, 1663.6, 131.0, and 192.6, respectively. The significantly enriched (EF > 10) strata sequences of Se and As mainly include the lower and upper Ediacaran Doushantuo member II (DST-II), DST-IV, bottom and upper Yanjiahe Formation (Precambrian-Cambrian), and Shuijingtuo Formation (early Cambrian). Mo displays similar significantly enriched strata with Se and As from DST-IV and above. Compared to the Cryogenian Nantuo Formation, Se, As, and Mo are enriched and concentrated in the whole Ediacaran and early Cambrian strata, especially at the early Ediacaran Doushantuo Formation, the diachronous Yanjiahe Formation (Precambrian -Cambrian) and the early Cambrian Shuijingtuo Formation, which are the horizons of the great bio-changes. Moreover, the significantly enriched strata of Se. As, and Mo are also consistent with intervals of great bio-changes. (C) 2017 Elsevier B.V. All rights reserved. |
| WOS关键词 | YANGTZE GORGES AREA ; SOUTH CHINA ; DOUSHANTUO FORMATION ; OCEAN OXYGENATION ; MASS EXTINCTION ; SELENOSIS AREA ; SNOWBALL EARTH ; TRACE-ELEMENTS ; BLACK SHALES ; EVOLUTION |
| 资助项目 | National Natural Science Foundation of China[41172310] ; National Natural Science Foundation of China[41472322] ; National Basic Research Program of China[2014CB238906] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000399507900020 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Natural Science Foundation of China ; National Basic Research Program of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/64554]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Luo, Kunli |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Xinglei,Luo, Kunli. Selenium, arsenic and molybdenum variation and bio-radiation in the Ediacaran-Cambrian interval[J]. PRECAMBRIAN RESEARCH,2017,292:378-385. |
| APA | Tian, Xinglei,&Luo, Kunli.(2017).Selenium, arsenic and molybdenum variation and bio-radiation in the Ediacaran-Cambrian interval.PRECAMBRIAN RESEARCH,292,378-385. |
| MLA | Tian, Xinglei,et al."Selenium, arsenic and molybdenum variation and bio-radiation in the Ediacaran-Cambrian interval".PRECAMBRIAN RESEARCH 292(2017):378-385. |
入库方式： OAI收割
来源：地理科学与资源研究所
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