Rhenium-Osmium isotope systematics of an Early Mesoproterozoic SEDEX polymetallic pyrite deposit in the North China Craton: Implications for geological significance and the marine osmium isotopic record
文献类型：期刊论文
| 作者 | Gao, Bingyu1,2,3; Zhang, Lianchang1,2,3; Jin, Xindi1,2; Li, Zhiquan1,2,3; Li, Wenjun1,2,3 |
| 刊名 | ORE GEOLOGY REVIEWS
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 117页码:10 |
| 关键词 | Gaobanhe deposit SEDEX Pyrite Re-Os isotopes Marine Os isotopic record |
| ISSN号 | 0169-1368 |
| DOI | 10.1016/j.oregeorev.2020.103331 |
| 英文摘要 | The rhenium-osmium (Re-Os) isotopic system preserved in ancient seafloor hydrothermal sulfide deposits can be used to gain insight into the Os composition of ancient seawater. In particular, the age of sedimentary exhalative (SEDEX) deposits can be determined by measuring Re-Os isotopes in syn-depositional pyrite, a common constituent of SEDEX deposits. Here we report on the Gaobanhe sediment-hosted, polymetallic pyrite deposit which is hosted within the Gaoyuzhuang Formation in the central part of the northern margin of the North China Craton (NCC). Re-Os isotopic data from syn-depositional pyrite yield an isochron age of 1505 +/- 55 Ma, constraining the timing of primary mineralization, as well as the minimum age of the host sediments to the Mesoproterozoic. Analyzed pyrite grains indicate an initial Os-187/Os-188 (Os-i) value of 0.181 +/- 0.066, suggesting that the mineralizing fluids were an admixture of seawater and submarine hydrothermal fluids, with the Os being primarily derived from seawater. The Os-i value is slightly higher than that of Paleoproterozoic seawater (similar to 0.13), suggesting that there was a radiogenic riverine flux to the oceans and that atmospheric oxygen must have been sufficiently high at that time to drive this increased, continental radiogenic Os input to the oceans. We propose that the Re-Os isotopic system, as recorded by these SEDEX deposits, may provide key insights when examining changes in the Os isotopic composition of seawater throughout the Precambrian. |
| WOS关键词 | RE-OS ; BROOKS RANGE ; BLACK SHALES ; OCEAN ; CONSTRAINTS ; GEOCHRONOLOGY ; BENEATH ; SULFATE ; ROCKS ; BASIN |
| 资助项目 | National Natural Science General Project[41603016] ; Nation Key R&D Program of China[2016YFC0600106] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| WOS记录号 | WOS:000515206900025 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; National Natural Science General Project ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; Nation Key R&D Program of China ; Nation Key R&D Program of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95606]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Zhang, Lianchang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Bingyu,Zhang, Lianchang,Jin, Xindi,et al. Rhenium-Osmium isotope systematics of an Early Mesoproterozoic SEDEX polymetallic pyrite deposit in the North China Craton: Implications for geological significance and the marine osmium isotopic record[J]. ORE GEOLOGY REVIEWS,2020,117:10. |
| APA | Gao, Bingyu,Zhang, Lianchang,Jin, Xindi,Li, Zhiquan,&Li, Wenjun.(2020).Rhenium-Osmium isotope systematics of an Early Mesoproterozoic SEDEX polymetallic pyrite deposit in the North China Craton: Implications for geological significance and the marine osmium isotopic record.ORE GEOLOGY REVIEWS,117,10. |
| MLA | Gao, Bingyu,et al."Rhenium-Osmium isotope systematics of an Early Mesoproterozoic SEDEX polymetallic pyrite deposit in the North China Craton: Implications for geological significance and the marine osmium isotopic record".ORE GEOLOGY REVIEWS 117(2020):10. |
入库方式： OAI收割
来源：地质与地球物理研究所
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