Environmental changes in the Middle Triassic lacustrine basin (Ordos, North China): Implication for biotic recovery of freshwater ecosystem following the Permian-Triassic mass extinction
文献类型：期刊论文
| 作者 | Liu, Hanlin3,4; Qiu, Zhen3,6; Zou, Caineng3,6; Fu, Jinhua1; Zhang, Wenzheng1; Tao, Huifei2; Li, Shixiang1; Zhou, Shangwen3,6; Wang, Lu4; Chen, Zhong-Qiang5 |
| 刊名 | GLOBAL AND PLANETARY CHANGE
 |
| 出版日期 | 2021-09-01 |
| 卷号 | 204页码:13 |
| ISSN号 | 0921-8181 |
| 关键词 | Mass extinction Recovery Element geochemistry Framboidal pyrite Organic-rich shale Chang 7 Member Middle Triassic Ordos Basin |
| DOI | 10.1016/j.gloplacha.2021.103559 |
| 英文摘要 | Increasing evidence shows that the recovery of marine ecosystems after the Permian/Triassic mass extinction (PTME) was coupled with environmental amelioration. Recently, abundant insects and complete trophic structures were unraveled from the Ladinian (late Middle Triassic) in the Ordos basin, central China, deciphering recovery of lacustrine ecosystem from the PTME. Coeval environmental settings, however, remain unclear. In the Ordos basin, the Ladinian succession is dominated by black organic-matter-rich shales of the Chang 7 Member of the Yanchang Formation, and their depositional environments and palaeo-productivity are reconstructed based on major and trace element concentrations, pyrite framboid size and morphology, and total organic carbon (TOC) contents. High values of TOC and phosphorous (P) concentrations, as well as more enrichment of trace-metal elements such as Copper (Cu) and zinc (Zn) all indicate a rather high primary productivity. Such a high productivity during the deposition of the Chang 73 sub-member is also reinforced by and the presence of abundant organic-matter-enrich laminae in black shales and the diverse chrysophytes, as well as intensive occurrence of tuff layers and possible hydrothermal fluids. Analyses of framboidal pyrite size and morphology as well as C-org/P ratio and trace-metal elements such as molybdenum (Mo) and uranium (U), indicate the dysoxic to oxic conditions in water columns of the Ordos lake during the late Middle Triassic. The Ladinian-Carnian cooling likely promoted the occurrence of dissolved oxygens in the lake. As a result, although the massive black shales of the Chang 73 sub-member were deposited and suggest a rather high primary productivity, they also indicate slightly oxygen-poor to oxygenated conditions of water columns, which are inductive for lacustrine biota to inhabit, and also offer hospitable habitats for freshwater lake ecosystems to recover from the PTME. |
| WOS关键词 | YANCHANG FORMATION ; TECTONIC EVOLUTION ; ORGANIC-CARBON ; RICH SHALES ; 7 MEMBER ; PHOSPHORUS ; DEPOSITION ; PALEOPRODUCTIVITY ; PRODUCTIVITY ; TRANSITION |
| 资助项目 | National Natural Science Foundation of China, NSFC[41602119] ; National Natural Science Foundation of China, NSFC[41930322] ; Youth Innovation Promotion Association CAS[2016068] ; Science and Technology Major Projects of PetroChina[2021DJ2001] |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000807918400001 |
| 资助机构 | National Natural Science Foundation of China, NSFC ; National Natural Science Foundation of China, NSFC ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Science and Technology Major Projects of PetroChina ; Science and Technology Major Projects of PetroChina ; National Natural Science Foundation of China, NSFC ; National Natural Science Foundation of China, NSFC ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Science and Technology Major Projects of PetroChina ; Science and Technology Major Projects of PetroChina ; National Natural Science Foundation of China, NSFC ; National Natural Science Foundation of China, NSFC ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Science and Technology Major Projects of PetroChina ; Science and Technology Major Projects of PetroChina ; National Natural Science Foundation of China, NSFC ; National Natural Science Foundation of China, NSFC ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Science and Technology Major Projects of PetroChina ; Science and Technology Major Projects of PetroChina |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/106061]  |
| 专题 | 地质与地球物理研究所_兰州油气中心 |
| 通讯作者 | Qiu, Zhen; Zou, Caineng |
| 作者单位 | 1.PetroChina, Changqing Oilfield Co, Xian 710018, Peoples R China 2.Chinese Acad Sci, Lanzhou Ctr Oil & Gas Resources, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China 3.PetroChina Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 4.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 5.China Univ Geosci Wuhan, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China 6.Natl Energy Shale Gas R&D Expt Ctr, Langfang 065007, Hebei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Hanlin,Qiu, Zhen,Zou, Caineng,et al. Environmental changes in the Middle Triassic lacustrine basin (Ordos, North China): Implication for biotic recovery of freshwater ecosystem following the Permian-Triassic mass extinction[J]. GLOBAL AND PLANETARY CHANGE,2021,204:13. |
| APA | Liu, Hanlin.,Qiu, Zhen.,Zou, Caineng.,Fu, Jinhua.,Zhang, Wenzheng.,...&Chen, Zhong-Qiang.(2021).Environmental changes in the Middle Triassic lacustrine basin (Ordos, North China): Implication for biotic recovery of freshwater ecosystem following the Permian-Triassic mass extinction.GLOBAL AND PLANETARY CHANGE,204,13. |
| MLA | Liu, Hanlin,et al."Environmental changes in the Middle Triassic lacustrine basin (Ordos, North China): Implication for biotic recovery of freshwater ecosystem following the Permian-Triassic mass extinction".GLOBAL AND PLANETARY CHANGE 204(2021):13. |
入库方式： OAI收割
来源：地质与地球物理研究所
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