The link between exceptional fossil preservation and palaeo-redox conditions in the Middle Triassic Luoping Biota from South China | |
Ma, Zhixin1; Hu, Shixue1; Liu, Xiting2,3; Zhou, Changyong1; Wen, Wen1; Zhang, Qiyue1; Huang, Jinyuan1,4,5; Min, Xiao1 | |
刊名 | GEOLOGICAL JOURNAL |
2021-02-15 | |
页码 | 14 |
关键词 | exceptional fossil preservation Guanling Formation Luoping Biota Middle Triassic palaeo‐ redox conditions sedimentary environment |
ISSN号 | 0072-1050 |
DOI | 10.1002/gj.4106 |
英文摘要 | The Luoping Biota represents of the recovery of marine ecosystems after the Permian-Triassic Mass Extinction. To better understand the palaeoenvironmental background of the Luoping Biota, sedimentary analysis and multi-geochemical proxies (Mo, U, V, V/Cr, Mo-EF, U-EF, and V-EF) were assessed in Member II of the Middle Triassic Guanling Formation of the Xiangdongpo section in Luoping County, Yunnan Province. According to the facies characteristics and redox-sensitive elemental proxies, in combination with macrofossil and bioturbation evidence, five intervals (I, II, III, IV, and V) were recognized. The exceptional preservation of the fossils is related to two anoxic intervals (II and IV) sandwiched by three suboxic intervals (I, III, and V). Based on this study and regional correlation, it is concluded that anoxia in the water-column increased the preservation potential of macrofauna fossils and inhibited the survival of trace-making organisms. In addition, microbial mats could produce local anoxic and restricted micro-environments, preventing the disarticulation of the carcasses by water turbulence. Therefore, we demonstrate that anoxic conditions played a key role in the exceptional fossil preservation of the Luoping Biota. |
资助项目 | China Geological Survey[DD20190054] ; National Natural Science Foundation of China[41772022] ; National Natural Science Foundation of China[41661134047] ; National Natural Science Foundation of China[41502013] ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS)[193110] |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | WILEY |
WOS记录号 | WOS:000618049400001 |
资助机构 | China Geological Survey ; National Natural Science Foundation of China ; State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology, CAS) |
内容类型 | 期刊论文 |
源URL | [http://ir.nigpas.ac.cn/handle/332004/37860] |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Ma, Zhixin |
作者单位 | 1.China Geol Survey, Chengdu Ctr, Chengdu 610081, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao, Peoples R China 3.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Technol, Coll Marine Geosci, Qingdao, Peoples R China 4.China Univ Geosci, Inst Geol Survey, Wuhan, Peoples R China 5.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing, Peoples R China |
推荐引用方式 GB/T 7714 | Ma, Zhixin,Hu, Shixue,Liu, Xiting,et al. The link between exceptional fossil preservation and palaeo-redox conditions in the Middle Triassic Luoping Biota from South China[J]. GEOLOGICAL JOURNAL,2021:14. |
APA | Ma, Zhixin.,Hu, Shixue.,Liu, Xiting.,Zhou, Changyong.,Wen, Wen.,...&Min, Xiao.(2021).The link between exceptional fossil preservation and palaeo-redox conditions in the Middle Triassic Luoping Biota from South China.GEOLOGICAL JOURNAL,14. |
MLA | Ma, Zhixin,et al."The link between exceptional fossil preservation and palaeo-redox conditions in the Middle Triassic Luoping Biota from South China".GEOLOGICAL JOURNAL (2021):14. |
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