国家冰川冻土沙漠科学数据中心

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名称	New chronological and paleontological evidence for Paleoproterozoic eukaryote distribution and stratigraphic correlation between the Yanliao and Xiong’er basins, North China Craton
科技资源标识	CSTR:11738.14.NCDC.XDA14.PP4353.2024
DOI	10.1016/j.precamres.2022.106577
数据共享方式	开放下载
摘要	North China Craton is one of the old cratons preserved continues recording of the early evolution of eukaryotes. Organic wall microfossils (OWMs) of eukaryotic affinity have been found in the late Paleoproterozoic sediments from the Yanliao and Xiong’er basins that located in the northern and southern margins of the North China Craton. However, accurate Paleoproterozoic stratigraphic correlation of these two basins still lacks precise chronological and convincing paleontological evidence. Here, we report a SIMS zircon U-Pb age (1647.8 ± 4.3 Ma) from a tuffite layer at the bottom of the Cuizhuang Formation of the Xiong’er Basin, which provides direct chronological evidence for its isochronous deposition with the Chuanlinggou Formation in the Yanliao Basin. Besides, abundant OWMs were recovered from red shales of the Chuanlinggou Formation from the present Taihang Mountains, which is located in the southern branch of the Yanliao Basin and close to the Xiong’er Basin. They are primarily spheroidal microfossils and contain at least one unambiguous unicellular eukaryotic taxa (Valeria lophostriata) and three probable eukaryotic taxa (Schizofusa sinica, Dongyesphaera tenuispina?, large Leiosphaeridia spp.). Our finding further confirms the appearance of unicellular eukaryotes in the Paleoproterozoic ocean and the expanding of their living scopes from the cratonic marginal basin to the intracratonic basin. However, the absence of eukaryotic OWMs in black shales and green shales with more hypoxic depositional waters than those of red shales, indicates that the oxygenated water is probably a key factor to the survival of eukaryotes and even their preservation as OWMs.
学科分类	170.50
关键词	Organic wall microfossils Eukaryote evolution Red bed Zircon U-Pb dating Chuanlinggou Formation Cuizhuang Formation Changchengian System Luoyu Group
作者	Dan Lyu,Yan Deng,Xiaomei Wang,Yuntao Ye,Ke Pang,Lanyun Miao,Zhong Luo,Fenglian Zhang,Yuanzheng Lu,Shenghui Deng,Huajian Wang,Shuichang Zhang
数据量	53.1 MiB
论文类型：	journal
论文网址：	https://doi.org/10.1016/j.precamres.2022.106577
期刊名称：	Precambrian Research
出版时间：	2022-04-01

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数据引用

Dan Lyu,Yan Deng,Xiaomei Wang,Yuntao Ye,Ke Pang,Lanyun Miao,Zhong Luo,Fenglian Zhang,Yuanzheng Lu,Shenghui Deng,Huajian Wang,Shuichang Zhang. New chronological and paleontological evidence for Paleoproterozoic eukaryote distribution and stratigraphic correlation between the Yanliao and Xiong’er basins, North China Craton. 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://cstr.cn/CSTR:11738.14.NCDC.XDA14.PP4353.2024.

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本作品采用知识共享署名 4.0 国际许可协议进行许可。

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项目信息详情

项目名称：深层油气形成与分布预测
项目编号：XDA14010000
项目类别：中国科学院战略性先导科技专项（A类）