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	Marine eutrophication within the Tarim Platform in sync with Middle to Late Ordovician climatic cooling
通讯作者	Zhang, Junpeng([email protected])
	Zhang, Junpeng1; Li, Wenjie1; Fang, Xiang1; Wu, Xuejin1,2; Li, Chao1; Zhang, Yuandong1,2
	2024-03-04
发表期刊	JOURNAL OF THE GEOLOGICAL SOCIETY
ISSN	0016-7649
卷号	181期号:2页码:8
摘要	Previous work has proposed climatic cooling and atmosphere-ocean oxygenation as potential triggers for the Great Ordovician Biodiversification Event, with the suggestion of better oxygenated oceans during the Middle to Late Ordovician. However, recent studies have argued for spatial and temporal heterogeneity in marine redox state on several continents. Here we investigate a black-shale succession accumulated within the Tarim Platform via a combination of geochemical proxies to address these debates. Negative shifts in bulk nitrogen isotopes and synchronous increases in excess phosphorus suggest moderate-high marine primary production coinciding with the development of bottom-water anoxia, as indicated by enrichments in highly reactive iron and modest concentrations of redox-sensitive trace metals (Mo, U). Moreover, the occurrence of black shale correlates well with equivalent successions formed in deep-water marginal basins along several continents, including South China, North China, Laurentia and Baltica. This may suggest an expansion of marine anoxia in low-latitude zones of the late Darriwilian to early Sandbian oceans, probably as a result of enhanced upwelling in sync with climatic cooling. The extent and ultimate cause of marine anoxia requires further quantifying constraints at a global scale, which will enable potential links between global oceanic redox conditions and concurrent biotic changes to be evaluated in more detail.
DOI	10.1144/jgs2023-078
收录类别	SCI
语种	英语
关键词[WOS]	REDOX CONDITIONS ; BIODIVERSIFICATION ; SULFUR ; CARBON ; OCEAN ; PHOSPHORUS ; IRON ; MOLYBDENUM ; SEDIMENTS ; EASTERN
资助项目	National Natural Science Foundation of China[735]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001177399900001
项目资助者	National Natural Science Foundation of China
出版者	GEOLOGICAL SOC PUBL HOUSE
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/43506
专题	中国科学院南京地质古生物研究所
通讯作者	Zhang, Junpeng
作者单位	1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junpeng,Li, Wenjie,Fang, Xiang,et al. Marine eutrophication within the Tarim Platform in sync with Middle to Late Ordovician climatic cooling[J]. JOURNAL OF THE GEOLOGICAL SOCIETY,2024,181(2):8.
APA	Zhang, Junpeng,Li, Wenjie,Fang, Xiang,Wu, Xuejin,Li, Chao,&Zhang, Yuandong.(2024).Marine eutrophication within the Tarim Platform in sync with Middle to Late Ordovician climatic cooling.JOURNAL OF THE GEOLOGICAL SOCIETY,181(2),8.
MLA	Zhang, Junpeng,et al."Marine eutrophication within the Tarim Platform in sync with Middle to Late Ordovician climatic cooling".JOURNAL OF THE GEOLOGICAL SOCIETY 181.2(2024):8.

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