Mechanisms and climatic-ecological effects of the Great Oxidation Event in the early Proterozoic  

作　　者：Genming LUO Xiangkun ZHU Shuijiong WANG Shihong ZHANG Chaoqun JIAO 

机构地区：[1]State Key Laboratory of Biogeology and Environmental Geology,and School of Earth Sciences,China University of Geosciences,Wuhan 430074,China [2]MNR Key Laboratory of Isotope Geology,MNR Key Laboratory of Deep-Earth Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China [3]State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Beijing 100083,China [4]State Key Laboratory of Biogeology and Environmental Geology,China University of Geosciences,Beijing 100083,China

出　　处：《Science China Earth Sciences》2022年第9期1646-1672,共27页中国科学（地球科学英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 41821001, 42172216, 41873027);the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB26000000);the 111 Project of China (Grant No. BP0820004)。

摘　　要：This paper briefly introduces the conception and research history of the Great Oxidation Event(GOE) in the early Paleoproterozoic and summarizes the primary geological and geochemical records of this event. On the basis of these, we overview the significant progress in three fields of the GOE: the timing and process of its startup, its mechanisms, and its climatic-ecological effects. The records of mass-independent fractionation of sulfur isotopes suggest that the startup of the GOE might be multi-episodic, which is obviously inconsistent with the single-episodic opinion obtained from atmospheric model simulations. The fundamental mechanism of the GOE was the source of the atmospheric Oexceeding the sink, but it remains uncertain whether it was due to the increase in the source or the decrease in the sink. The GOE substantially affected the climate,biological evolution, and biogeochemical cycles, but the specific processes remain elusive. In consideration of the current progress, we propose four aspects for future explorations, including the construction of geological and geochemical proxies for extremely low atmospheric oxygen content(pO), how the GOE changed the evolutions of Earth’s habitability and the processes in deep Earth, and constraining the mechanism of the GOE by coupling geological events with different time scales.

关 键 词：Great Oxidation Event PROTEROZOIC PALEOCEANOGRAPHY Mantle oxygen fugacity BIOGEOCHEMISTRY 

分 类 号：P534.3[天文地球—古生物学与地层学] P532[天文地球—地质学]