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Extreme climate changes influenced early life evolution at-1.4 Ga: Implications from shales of the Xiamaling Formation, northern North China Craton

文献类型：期刊论文

作者He, Yuting3,4,5; Zhu, Xiyan1,2; Qiu, Yifan3,4,5; Pang, Lanyin3,4,5; Zhao, Taiping1,3,5
刊名PRECAMBRIAN RESEARCH
出版日期2022-12-01
卷号383页码:15
关键词Black shale Nutrient supply Mo isotope Mesoproterozoic oxygenation event North China Craton
ISSN号0301-9268
DOI10.1016/j.precamres.2022.106901
英文摘要The Mesoproterozoic Era (ca.1.6-1.0 Ga) witnessed a long-term evolution stasis of eukaryote, which is usually ascribed to the persistent low atmospheric oxygen levels. However, several oxygenation processes were identified on different continents during the Mesoproterozoic Era, implying that the oxygen levels may not be the only factor influencing the evolution of early-life during the early Mesoproterozoic Era. Here, we report the molybdenum isotopes, redox sensitive elements, nutrient elements and total organic carbon (TOC) content of black and green shales from the - 1.4 Ga Xiamaling Formation in the northern part of the North China Craton (NCC), which has been affected by Milankovitch-style cycle, orbital forcing of extreme change of climate - 1.4 billion years ago. The highest delta 98Mo of the green shale reaches 1.56 +/- 0.04 %o (modern ocean: 2.34 %o), which may also confirm that it was in an oxygenation state at that time. In contrast, the black shale has lower delta 98Mo values (1.02 +/- 0.07 %o) than that of green shale, indicating a less oxidized environment. Moreover, the TOC and nutrient elements (e.g., P, Cu, Ni) contents of the black shale are higher than those of green shale, which results from an increased nutrient input caused by stronger weathering and river runoff during a wet period. We conclude that the marine environment was persistently oxidative during the deposition of the black and green shales, while the TOC contents of the black and green shales are mainly controlled by the concentration of the nutrient elements that are constrained by the climatic conditions. Even though in oxic aquatic environment, the unstable nutrient supply would hinder the early life evolution, our findings imply vice versa. Hence, these results imply that the extreme climate change leading to unsustainable supply of nutrients, may have largely influenced emergence and diversification of animals in the Mesoproterozoic Era.
WOS关键词MESOPROTEROZOIC HONGSHUIZHUANG FORMATION ; MO ISOTOPE SYSTEMATICS ; ORGANIC-CARBON ; ATMOSPHERIC OXYGEN ; ANIMAL EVOLUTION ; BLACK SHALES ; GAOYUZHUANG FORMATION ; OCEAN OXYGENATION ; BILLION YEARS ; RE-OS
资助项目National Key Research and Development Program of China ; Na-tional Natural Science Foundation of China ; [2020YFA0714803] ; [41630211] ; [41872198]
WOS研究方向Geology
语种英语
WOS记录号WOS:000891775400002
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; Na-tional Natural Science Foundation of China ; Na-tional Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Na-tional Natural Science Foundation of China ; Na-tional Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Na-tional Natural Science Foundation of China ; Na-tional Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Na-tional Natural Science Foundation of China ; Na-tional Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/106991]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Zhao, Taiping
作者单位1.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
3.CAS Ctr Excellence Deep Earth Sci, Guangzhou 510640, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Mineral & Metallogeny, Guangzhou 510640, Peoples R China
推荐引用方式
GB/T 7714		 He, Yuting,Zhu, Xiyan,Qiu, Yifan,et al. Extreme climate changes influenced early life evolution at-1.4 Ga: Implications from shales of the Xiamaling Formation, northern North China Craton[J]. PRECAMBRIAN RESEARCH,2022,383:15.
APA He, Yuting,Zhu, Xiyan,Qiu, Yifan,Pang, Lanyin,&Zhao, Taiping.(2022).Extreme climate changes influenced early life evolution at-1.4 Ga: Implications from shales of the Xiamaling Formation, northern North China Craton.PRECAMBRIAN RESEARCH,383,15.
MLA He, Yuting,et al."Extreme climate changes influenced early life evolution at-1.4 Ga: Implications from shales of the Xiamaling Formation, northern North China Craton".PRECAMBRIAN RESEARCH 383(2022):15.

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来源：地质与地球物理研究所

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