中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 岩石圈演化国家重点实验室
Re-Os, Sr-Nd isotopic and PGE elemental constraints for the formation of mid-Proterozoic ironstones in North China Craton: Implications for the atmospheric oxygen level

文献类型：期刊论文

作者Chu, Zhuyin2,3; Qiu, Yifan4,5; Zhou, Xiqiang3,6,7; Yang, Xuli1,2,3,8; Peng, Peng2,3,6; Zhao, Taiping4,5; Xu, Jifeng1,8
刊名EARTH AND PLANETARY SCIENCE LETTERS
出版日期2023-11-01
卷号621页码:10
关键词Re-Os ironstones mid-Proterozoic paleo-environment atmospheric oxygen level
ISSN号0012-821X
DOI10.1016/j.epsl.2023.118367
英文摘要The origin (hydrothermal vs. continental Fe source) and environmental implications in particular for the atmospheric oxygen level of mid-Proterozoic ironstones have been widely studied, but remain highly debated. Here, we present Re-Os, Sr-Nd isotopic and PGE elemental data for ironstones from the-1.7 Ga Yunmengshan (YMS) Formation in south margin of the North China Craton to address the controversy. The initial 87Sr/86Sr ratios of the YMS ironstones are-0.7063, which are roughly comparable with seawater values around that period, suggesting a seawater signal with minor/minimal direct contributions from submarine hydrothermal fluids. The Nd isotopic compositions (& epsilon;Nd(t): -6.6 to -6.0) indicate a dominantly continental crustal signal for the formation of the ironstones. The PGE patterns of the YMS ironstones are distinctly similar to those of hydrogenous Fe-Mn crusts/nodules in modern ocean, also suggesting deposition from normal seawater conditions. Importantly, the YMS ironstones give initial 187Os/188Os ratios of-0.6 at-1.7 Ga, providing critical constraints for contemporaneous seawater values. This seawater 187Os/188Os value of-0.6 strongly suggests a result of oxidative weathering and transportation of Os in continental crust into the ocean, implying a relatively high atmospheric oxygen level at-1.7 Ga. & COPY; 2023 Elsevier B.V. All rights reserved.
WOS关键词PLATINUM-GROUP ELEMENTS ; FERROMANGANESE CRUSTS ; DEPOSITIONAL AGE ; OSMIUM ; SEAWATER ; IRON ; GEOCHEMISTRY ; RHENIUM ; RECORD ; SHALE
资助项目National Key Research and De- velopment Project of China[2020YFA0714803] ; National Science Foundation of China[42073050] ; National Science Foundation of China[42073022]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:001073578800001
出版者ELSEVIER
资助机构National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Key Research and De- velopment Project of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China ; National Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/110811]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Chu, Zhuyin
作者单位1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Key Lab Mineral & Metallogeny, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
5.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China
6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
7.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
8.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Chu, Zhuyin,Qiu, Yifan,Zhou, Xiqiang,et al. Re-Os, Sr-Nd isotopic and PGE elemental constraints for the formation of mid-Proterozoic ironstones in North China Craton: Implications for the atmospheric oxygen level[J]. EARTH AND PLANETARY SCIENCE LETTERS,2023,621:10.
APA Chu, Zhuyin.,Qiu, Yifan.,Zhou, Xiqiang.,Yang, Xuli.,Peng, Peng.,...&Xu, Jifeng.(2023).Re-Os, Sr-Nd isotopic and PGE elemental constraints for the formation of mid-Proterozoic ironstones in North China Craton: Implications for the atmospheric oxygen level.EARTH AND PLANETARY SCIENCE LETTERS,621,10.
MLA Chu, Zhuyin,et al."Re-Os, Sr-Nd isotopic and PGE elemental constraints for the formation of mid-Proterozoic ironstones in North China Craton: Implications for the atmospheric oxygen level".EARTH AND PLANETARY SCIENCE LETTERS 621(2023):10.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

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。