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Recovery of lacustrine ecosystems after the end-Permian mass extinction
Zhao, Xiangdong1,2,3; Zheng, Daran1,2,4; Xie, Guwei5,6,7; Jenkyns, Hugh C.8; Guan, Chengguo1,2; Fang, Yanan1,2; He, Jing5; Yuan, Xiaoqi5; Xue, Naihua (薛乃华)1,2,3; Wang, He (王贺)1,2,3; Li, Sha (李莎)1,2; Jarzembowski, Edmund A.1,2,9; Zhang, Haichun (张海春)1,2; Wang, Bo (王博)1,2
2020-06-01
Source PublicationGEOLOGY
ISSN0091-7613
Volume48Issue:6Pages:609-613
Abstract

The end-Permian mass extinction (EPME; ca. 252 Ma) led to profound changes in lacustrine ecosystems. However, whether or not post-extinction recovery of lacustrine ecosystems was delayed has remained uncertain, due to the apparent rarity of Early . and Middle Triassic deep perennial lakes. Here we report on mid-Middle Triassic lacustrine organic-rich shales with abundant fossils and tuff interlayers in the Ordos Basin of China, dated to ca. 242 Ma (around the A nisian-Ladinian boundary of the Middle Triassic). The organic-rich sediments record the earliest known appearance, after the mass extinction, of a deep perennial lake that developed at least 5 m.y. earlier than the globally distributed lacustrine shales and mudstones dated as Late Triassic. The fossil assemblage in the organic-rich sediments is diverse and includes plants, notostracans, ostracods, insects, fishes, and fish coprolites, and thus documents a Mesozoic-type, trophically multileveled lacustrine ecosystem. The results reveal the earliest known complex lacustrine ecosystem after the EPME and suggest that Triassic lacustrine ecosystems took at most 10 m.y. to recover fully, which is consistent with the termination of the "coal gap" that signifies substantial restoration of peat-forming forests.

DOI10.1130/G47502.1
Indexed BySCI
Language英语
WOS KeywordORDOS BASIN ; YANCHANG FORMATION ; PRODUCTIVITY
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41730317]
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000539742900016
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/32015
Collection中国科学院南京地质古生物研究所
Corresponding AuthorWang, Bo (王博)
Affiliation1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, Peoples R China
4.Univ Hong Kong, Dept Earth Sci, Hong Kong 999077, Peoples R China
5.PetroChina, Changqing Oilfield Co, Res Inst Explorat & Dev, Xian 710018, Shaanxi, Peoples R China
6.PetroChina, Changqing Oilfield Co, Natl Engn Lab Explorat & Dev Low Permeabil Oil &, Xian 710018, Shaanxi, Peoples R China
7.Northwest Univ, Dept Geol, Xian 710069, Peoples R China
8.Univ Oxford, Dept Earth Sci, Oxford OX1 3AN, England
9.Nat Hist Museum, Dept Earth Sci, London SW7 5BD, England
Recommended Citation
GB/T 7714
Zhao, Xiangdong,Zheng, Daran,Xie, Guwei,et al. Recovery of lacustrine ecosystems after the end-Permian mass extinction[J]. GEOLOGY,2020,48(6):609-613.
APA Zhao, Xiangdong.,Zheng, Daran.,Xie, Guwei.,Jenkyns, Hugh C..,Guan, Chengguo.,...&Wang, Bo .(2020).Recovery of lacustrine ecosystems after the end-Permian mass extinction.GEOLOGY,48(6),609-613.
MLA Zhao, Xiangdong,et al."Recovery of lacustrine ecosystems after the end-Permian mass extinction".GEOLOGY 48.6(2020):609-613.
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