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Mesoproterozoic oxygenation event: From shallow marine to atmosphere

文献类型：期刊论文

作者Xie, Baozeng2,7; Zhu, Jian-ming6,7; Wang, Xiangli5; Xu, Dongtao4; Zhou, Limin3; Zhou, Xiqiang1,5; Shi, Xiaoying2,4; Tang, Dongjie2,7
刊名GEOLOGICAL SOCIETY OF AMERICA BULLETIN
出版日期2023-03-01
卷号135期号:3-4页码:753-766
ISSN号0016-7606
DOI10.1130/B36407.1
英文摘要Oxygen availability is crucial for the evolution of eukaryotes in geological history, but the redox conditions of the mid-Proterozoic atmospheric-oceanic system remain vigorously debated. Previous geochemical studies suggested a very low mid-Proterozoic atmospheric oxygen level of probably below 0.1%-1% of the present atmospheric level (PAL) with weakly oxygenated surface ocean, which may have suppressed the early evolution of eukaryotes in the ocean. A recent study, however, revealed a pulsed oxygenation event that was recorded in shallow marine carbonate of the middle Gaoyuzhuang Formation (at ca. 1.57 Ga, North China) with atmospheric pO(2) of up to >= 4% PAL based on iodine speciation. This event is associated with the earliest known multi-cellular eukaryotic fossils. To elucidate whether this pulsed oxygenation was limited to shallow local seawaters or could also reflect an increase in atmospheric oxygen, chromium (Cr), and carbonate-associated sulfate (CAS), sulfur isotopes in the middle Gaoyuzhuang Formation were studied in two sections of the North China Platform. The results show a positive shift in authigenic Cr isotope from -0.18 parts per thousand to +0.66 parts per thousand, which was followed by a decline to -0.16 parts per thousand. This suggests a rise in atmospheric oxygen sufficient to initiate oxic Cr cycling and isotope fractionation (pO(2) > 0.1%-1% PAL). This positive Cr isotope excursion was associated with a transient positive shift in delta S-34(CAS) from similar to 20 parts per thousand to similar to 50 parts per thousand and a subsequent decline to similar to 10 parts per thousand, which provides independent evidence of atmospheric oxygenation. This oxygenation may have enhanced oxidative terrestrial weathering and increased sulfate input to the ocean, thus stimulating bacterial sulfate reduction and pyrite burial in deep anoxic seawaters. This is broadly consistent with previous results of carbonate I/(Ca + Mg) and Ce anomaly but also reveals a lag between shallow seawater and atmospheric oxygenation. Fluctuated redox conditions and decoupled oxygenation between shallow seawater and atmosphere during the mid-Proterozoic may help to account for the current debate.
WOS关键词CARBONATE-ASSOCIATED SULFATE ; EDIACARAN-CAMBRIAN TRANSITION ; CR-ISOTOPE ; CHROMIUM ISOTOPES ; BLACK SHALES ; OCEAN REDOX ; HEXAVALENT CHROMIUM ; GAOYUZHUANG FORMATION ; YANGTZE PLATFORM ; TRACE-ELEMENTS
资助项目National Natural Science Foundation of China[41930320] ; National Natural Science Foundation of China[41972028] ; National Key Research and Development Project of China[2020YFA0714803] ; Fundamental Research Funds for the Central Universities[292019093] ; Chinese "111" project[B20011] ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences[IGGCAS-201905] ; Pioneer Hundred Talents Program of the Chinese Academy of Sciences[E151530301]
WOS研究方向Geology
语种英语
出版者GEOLOGICAL SOC AMER, INC
WOS记录号WOS:001096648300003
资助机构National Natural Science Foundation of China ; National Key Research and Development Project of China ; Fundamental Research Funds for the Central Universities ; Chinese "111" project ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Pioneer Hundred Talents Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; Fundamental Research Funds for the Central Universities ; Chinese "111" project ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Pioneer Hundred Talents Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; Fundamental Research Funds for the Central Universities ; Chinese "111" project ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Pioneer Hundred Talents Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Key Research and Development Project of China ; Fundamental Research Funds for the Central Universities ; Chinese "111" project ; Key Research Program of the Institute of Geology and Geophysics, Chinese Academy of Sciences ; Pioneer Hundred Talents Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/110651]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Tang, Dongjie
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.China Univ Geosci Beijing, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
3.Natl Res Ctr Geoanal, Beijing 100037, Peoples R China
4.China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
6.China Univ Geosci Beijing, State Key Lab Geol Processes & Mineral Resources, Beijing 100083, Peoples R China
7.China Univ Geosci Beijing, Inst Earth Sci, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Xie, Baozeng,Zhu, Jian-ming,Wang, Xiangli,et al. Mesoproterozoic oxygenation event: From shallow marine to atmosphere[J]. GEOLOGICAL SOCIETY OF AMERICA BULLETIN,2023,135(3-4):753-766.
APA Xie, Baozeng.,Zhu, Jian-ming.,Wang, Xiangli.,Xu, Dongtao.,Zhou, Limin.,...&Tang, Dongjie.(2023).Mesoproterozoic oxygenation event: From shallow marine to atmosphere.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,135(3-4),753-766.
MLA Xie, Baozeng,et al."Mesoproterozoic oxygenation event: From shallow marine to atmosphere".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 135.3-4(2023):753-766.

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来源：地质与地球物理研究所

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