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Suboxic-dominated conditions in the Ediacaran shallow ocean: Geochemistry of pelitic siltstones in the Doushantuo Formation, South China
Chen, Yali1; Huang, Jing2,3,4; Zhong, Yan5; Zhang, Xingliang6,7; Zhai, Mingguo6,7,8,9; Chu, Xuelei6,7,8,9
2020-05-15
Source PublicationPALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN0031-0182
Volume546Pages:10
AbstractThe Ediacaran witnessed a significant oxygenation of the Earth's surface in line with the emergence and diversification of early animals, but the redox conditions of the shallow waters during this period are still uncertain. Here, we present geochemical profiles from neritic pelitic siltstones of the Doushantuo Formation at the village of Xiaoyang on the northwestern margin of the Yangtze Platform in South China. Most sediments show moderate to low Fe-HR/Fe-T ratios (<= 0.38), low Fe-py/Fe-HR ratios (< 0.7), and low enrichment factors (EF <= 1) for most redox-sensitive elements, suggesting predominately oxygenated shallow waters. However, we also find moderately enriched Re (EF similar to 10-25) combined with depleted U and Mo (EF <= 1), indicating suboxic conditions. Furthermore, a few samples show Fe-HR/Fe-T > 0.38, suggesting episodic anoxia in the shallow ocean. Overall, the Xiaoyang section represents a suboxic shallow ocean with occasional episodes of anoxia during the Doushantuo stage, implying that the oxygenation level in the early-mid Ediacaran ocean was still limited, even under some shallow conditions. It also supports the high redox heterogeneity in the early-mid Ediacaran ocean, which could have restricted the evolution and distribution of early metazoans.
KeywordNeritic facies Fe speciation Trace elements Sulfur isotope Yangtze Platform
DOI10.1016/j.palaeo.2020.109658
Funding OrganizationStrategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin
WOS KeywordNEOPROTEROZOIC OXYGENATION EVENT ; DEEP-OCEAN ; YANGTZE PLATFORM ; FERRUGINOUS CONDITIONS ; ISOTOPE CONSTRAINTS ; MARINE-SEDIMENTS ; LAOBAO FORMATION ; BLACK SHALES ; TRACE-METALS ; IRON
Language英语
Funding ProjectStrategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18020102] ; Natural Science Foundation of China[41673002] ; Natural Science Foundation of China[41902197] ; Natural Science Foundation of China[41701355] ; National Key Research and Development Program of China[2017YFD0801003] ; Natural Science Foundation of Tianjin[17JCQNJC08100]
Funding OrganizationStrategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin ; Natural Science Foundation of Tianjin
WOS Research AreaPhysical Geography ; Geology ; Paleontology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS IDWOS:000526826100007
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95559
Collection岩石圈演化国家重点实验室
Corresponding AuthorZhong, Yan; Chu, Xuelei
Affiliation1.Minist Agr & Rural Affairs, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China
2.Chinese Acad Sci, Inst Oceanog, Ctr Deep Sea Res, Qingdao 266071, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Comparat Planetol, Hefei 230026, Peoples R China
5.China Geol Survey, Tianjin Ctr, Tianjin 300170, Peoples R China
6.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Xian 710069, Peoples R China
7.Northwest Univ, Dept Geol, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China
8.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
9.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Chen, Yali,Huang, Jing,Zhong, Yan,et al. Suboxic-dominated conditions in the Ediacaran shallow ocean: Geochemistry of pelitic siltstones in the Doushantuo Formation, South China[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,546:10.
APA Chen, Yali,Huang, Jing,Zhong, Yan,Zhang, Xingliang,Zhai, Mingguo,&Chu, Xuelei.(2020).Suboxic-dominated conditions in the Ediacaran shallow ocean: Geochemistry of pelitic siltstones in the Doushantuo Formation, South China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,546,10.
MLA Chen, Yali,et al."Suboxic-dominated conditions in the Ediacaran shallow ocean: Geochemistry of pelitic siltstones in the Doushantuo Formation, South China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 546(2020):10.
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