Spatiotemporal evolution of late Neoproterozoic marine environments on the Yangtze Platform (South China): Linking continental weathering and marine C-P cycles
文献类型：期刊论文
| 作者 | Hohl, Simon, V1,2,3; Jiang, Shao-Yong4; Becker, Harry3; Wei, Hai-Zhen2; Wei, Guang-Yi2; Xu, Juan1; Guo, Qingjun5; Viehmann, Sebastian6; van Acken, David7 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 216页码:13 |
| 关键词 | Yangtze Platform Yangtze Shuram anomaly Carbonate osmium isotopes Sr-Nd isotope stratigraphy Nutrient cycling C and P cycles |
| ISSN号 | 0921-8181 |
| DOI | 10.1016/j.gloplacha.2022.103927 |
| 通讯作者 | Hohl, Simon, V(sv_hohl@tongji.edu.cn) ; Jiang, Shao-Yong(shyjiang@cug.edu.cn) |
| 英文摘要 | The geodynamic reorganization of major cratonic blocks during the assembly of Gondwana in the late Neoproterozoic caused a (bio)geochemical evolution of marine habitats that witnessed fluctuating seawater oxygenation and nutrient fluxes. Previous studies of carbonates deposited on the Yangtze Platform (South China) have shown their use as reliable archives of paleo-redox and bio-productivity changes intrinsically linked to continental weathering fluxes and water mass cycling. Despite its complex submarine morphology, only a few carbonate-bearing sections comprising deeper depositional environments of the Yangtze Platform have been evaluated. Here we report temporal, lateral, and vertical variations of stable C and radiogenic Sr, Nd, and Os isotopic compositions together with trace element and rare earth and yttrium (REY) systematics in carbonates from the Doushantuo Formation representing different paleo-marine environments of the Yangtze Platform, including I) inner shelf, II) restricted intra-shelf basin, III) slope and IV) deep-water basin sections to trace the extent and evolution of paleo water masses. Variations in shale-normalized (subscript SN) Ce anomalies argue for variably oxidizing atmosphere/ocean conditions. The combination of REYSN systematics with carbonate associated P enrichments defines three distinct local water masses from which the carbonates precipitated: i) fully oxidized shallow-water, ii) nutrient-poor intra-shelf basin waters, and iii) organic carbon-rich slope and deep-waters with temporal evolution to higher dissolved pO(2). Negative carbon isotope excursions in the carbonates such as during the putative Shuram equivalent Doushantuo Negative Carbon Excursion (DOUNCE) correlate with less negative CeSN anomalies and ambient seawater shifts to more radiogenic initial Sr-87/Sr-86 and Os-187/Os-188, but unradiogenic Nd-143/Nd-144 compositions, arguing for coupling of redox and weathering trends. Our comprehensive geochemical study highlights the vertical and temporal variations of physicochemical water mass properties recorded in late Neoproterozoic Yangtze Platform carbonates until the emergence of the first metazoans. |
| WOS关键词 | RARE-EARTH-ELEMENTS ; DOUSHANTUO FORMATION ; ISOTOPIC COMPOSITION ; GORGES AREA ; EDIACARAN ; SEAWATER ; OCEAN ; OXYGENATION ; CARBONATES ; YTTRIUM |
| 资助项目 | National Science Foundation of China[4211101120] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000852587000002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/182719]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Hohl, Simon, V; Jiang, Shao-Yong |
| 作者单位 | 1.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 2.Nanjing Univ, State Key Lab Mineral Deposits Res, Nanjing 210032, Peoples R China 3.Free Univ, Dept Geol, D-12249 Berlin, Germany 4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Wuhan 430074, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 6.Univ Vienna, Dept Lithospher Res, A-1090 Vienna, Austria 7.Univ Coll Dublin, Sch Earth Sci, Dublin 4, Ireland |
| 推荐引用方式 GB/T 7714 | Hohl, Simon, V,Jiang, Shao-Yong,Becker, Harry,et al. Spatiotemporal evolution of late Neoproterozoic marine environments on the Yangtze Platform (South China): Linking continental weathering and marine C-P cycles[J]. GLOBAL AND PLANETARY CHANGE,2022,216:13. |
| APA | Hohl, Simon, V.,Jiang, Shao-Yong.,Becker, Harry.,Wei, Hai-Zhen.,Wei, Guang-Yi.,...&van Acken, David.(2022).Spatiotemporal evolution of late Neoproterozoic marine environments on the Yangtze Platform (South China): Linking continental weathering and marine C-P cycles.GLOBAL AND PLANETARY CHANGE,216,13. |
| MLA | Hohl, Simon, V,et al."Spatiotemporal evolution of late Neoproterozoic marine environments on the Yangtze Platform (South China): Linking continental weathering and marine C-P cycles".GLOBAL AND PLANETARY CHANGE 216(2022):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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