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  4. 中国科学院新生代地质与环境重点实验室
Manganese-rich deposits in the Mesoproterozoic Gaoyuzhuang Formation (ca. 1.58 Ga), North China Platform: Genesis and paleoenvironmental implications

文献类型：期刊论文

作者Fang, Hao2,3; Tang, Dongjie2,4; Shi, Xiaoying2,3; Lechte, Maxwell5; Shang, Mohan3; Zhou, Xiqiang1,6; Yu, Wenchao7
刊名PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
出版日期2020-12-01
卷号559页码:19
关键词Precambrian Manganese cycling Redox Oxygenation Eukaryote
ISSN号0031-0182
DOI10.1016/j.palaeo.2020.109966
英文摘要The redox state of the surface ocean-atmosphere system has long been considered to have been remarkably stable during the mid-Proterozoic (ca. 1800-800 Ma); however, there is a growing body of evidence that supports dynamic redox fluctuations during this time. Sedimentary Mn enrichment in the ca. 1.58 Ga Gaoyuzhuang Formation (North China) may represent an important archive of mid-Proterozoic paleoenvironmental conditions. We present a sedimentological and geochemical study of the Mn-rich carbonate succession in the Gaoyuzhuang Formation in order to further elucidate the genesis and paleoredox implications of this Mn-rich deposit. We suggest that the Mn-rich interval was deposited in deep subtidal environments close to storm wavebase. Manganese occurs either as millimeter-sized Mn-oxide (pyrolusite) nodules or as Mn-rich dolomite, which features moderately positive I/(Ca+Mg) values (0.5-1.7 mu mol/mol) and Ce anomalies (1.1-1.2). In contrast, the underlying and overlying carbonates that lack Mn-oxides were deposited in a shallow subtidal environment above fair-weather wave-base. They have relatively low I/(Ca+Mg) values (< 0.5 mu mol/mol) and negligible Ce anomalies (average Ce/Ce* = 1.05 +/- 0.05). Thus, we suggest that during the deposition of the highly Mnenriched strata shallow seawaters were sufficiently oxygenated to drive active redox cycling of Mn, and that this interval was bracketed by less-oxygenated shallow marine conditions. Given the widespread distribution of the Mn-rich deposits across the North China platform, we argue that the Mn-rich deposits may have recorded a basin-scale, pulsed oxygenation. The association of this interval with enigmatic macrofossils in the overlying strata of the upper Gaoyuzhuang Formation warrants further investigation of the potential link between pulsed episodes of oxygenation and evolutionary advances in the early Mesoproterozoic.
WOS关键词ATMOSPHERIC OXYGEN LEVELS ; RARE-EARTH-ELEMENTS ; PALEOPROTEROZOIC SNOWBALL EARTH ; CARBON-ISOTOPE RECORDS ; OCEAN CHEMISTRY ; JIXIAN SECTION ; NEOPROTEROZOIC OXYGENATION ; REDOX HETEROGENEITY ; PROTEROZOIC OCEAN ; TIELING FORMATION
资助项目National Natural Science Foundation of China[41930320] ; National Natural Science Foundation of China[41972028] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS201905] ; Fundamental Research Funds for the Central Universities[2652018005] ; Fundamental Research Funds for the Central Universities[2652019093] ; Fundamental Research Funds for the Central Universities[2652019250] ; Chinese "111" Project[B20011] ; Fonds de Recherche du Quebec-Nature et Technologies
WOS研究方向Physical Geography ; Geology ; Paleontology
语种英语
WOS记录号WOS:000591242700010
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Chinese "111" Project ; Chinese "111" Project ; Fonds de Recherche du Quebec-Nature et Technologies ; Fonds de Recherche du Quebec-Nature et Technologies ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Chinese "111" Project ; Chinese "111" Project ; Fonds de Recherche du Quebec-Nature et Technologies ; Fonds de Recherche du Quebec-Nature et Technologies ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Chinese "111" Project ; Chinese "111" Project ; Fonds de Recherche du Quebec-Nature et Technologies ; Fonds de Recherche du Quebec-Nature et Technologies ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Key Research Program of the Institute of Geology & Geophysics, CAS ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Chinese "111" Project ; Chinese "111" Project ; Fonds de Recherche du Quebec-Nature et Technologies ; Fonds de Recherche du Quebec-Nature et Technologies
源URL[http://ir.iggcas.ac.cn/handle/132A11/99872]  
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; Shi, Xiaoying
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.China Univ Geosci Beijing, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
3.China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
4.China Univ Geosci Beijing, Inst Earth Sci, Beijing 100083, Peoples R China
5.McGill Univ, Dept Earth & Planetary Sci, 3450 Univ St, Montreal, PQ H3A 0E8, Canada
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
7.China Univ Geosci Wuhan, State Key Lab Biogeol & Environm Geol, Wuhan 430074, Peoples R China
推荐引用方式
GB/T 7714		 Fang, Hao,Tang, Dongjie,Shi, Xiaoying,et al. Manganese-rich deposits in the Mesoproterozoic Gaoyuzhuang Formation (ca. 1.58 Ga), North China Platform: Genesis and paleoenvironmental implications[J]. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2020,559:19.
APA Fang, Hao.,Tang, Dongjie.,Shi, Xiaoying.,Lechte, Maxwell.,Shang, Mohan.,...&Yu, Wenchao.(2020).Manganese-rich deposits in the Mesoproterozoic Gaoyuzhuang Formation (ca. 1.58 Ga), North China Platform: Genesis and paleoenvironmental implications.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,559,19.
MLA Fang, Hao,et al."Manganese-rich deposits in the Mesoproterozoic Gaoyuzhuang Formation (ca. 1.58 Ga), North China Platform: Genesis and paleoenvironmental implications".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 559(2020):19.

入库方式： OAI收割

来源：地质与地球物理研究所

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