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  2. 地质与地球物理研究所
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  4. 中国科学院新生代地质与环境重点实验室
Anaerobic oxidation of methane by Mn oxides in sulfate-poor environments

文献类型：期刊论文

作者Cai, Chunfang1,2; Li, Kaikai3; Liu, Dawei2; John, Cedric M.4; Wang, Daowei3; Fu, Bin5; Fakhraee, Mojtaba6; He, Hong7; Feng, Lianjun1; Jiang, Lei1
刊名GEOLOGY
出版日期2021-07-01
卷号49期号:7页码:761-766
ISSN号0091-7613
DOI10.1130/G48553.1
英文摘要Strongly C-13-depleted authigenic carbonates (e.g., delta C-13(VPDB) <-30 parts per thousand; VPDB-Vienna Peedee belemnite) in nature are generally believed to form by sulfate-dependent anaerobic oxidation of methane (AOM). However, we demonstrate using geochemical data and thermodynamic calculation that such calcites are most likely derived from biogenic oxidation of methane in sulfate-poor, nonmarine environments during early diagenesis, as observed in the Triassic sandy conglomerates from the Junggar Basin, northwestern China. This process operated through preferential oxidation of C-13-depleted methane by Mn oxides in closed conditions, producing calcites with higher Mn contents and delta C-13 values in association with more C-13-enriched residual methane as a result of kinetic isotope fractionation. Thus, the Mn-rich and C-13-depleted carbonates are proposed as tracers of Mn-dependent AOM, which should have served as an important sink of greenhouse methane in low-sulfate early Earth's oceans.
WOS关键词JUNGGAR BASIN ; DIAGENETIC ORIGIN ; SICHUAN BASIN ; CHINA ; ISOTOPE ; MANGANESE ; BACTERIAL ; CARBON ; IRON ; GEOCHEMISTRY
资助项目National Natural Science Foundation of China[41730424] ; National Natural Science Foundation of China[4181101560]
WOS研究方向Geology
语种英语
出版者GEOLOGICAL SOC AMER, INC
WOS记录号WOS:000675396700008
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/101951]  
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Cai, Chunfang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.China Univ Geosci Beijing, Sch Energy Resources, Beijing 100083, Peoples R China
4.Imperial Coll London, Dept Earth Sci & Engn, London SW7 2BU, England
5.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 2601, Australia
6.Yale Univ, Dept Geol & Geophys, New Haven, CT 06520 USA
7.SINOPEC, Petr Explorat & Prod Res Inst, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Cai, Chunfang,Li, Kaikai,Liu, Dawei,et al. Anaerobic oxidation of methane by Mn oxides in sulfate-poor environments[J]. GEOLOGY,2021,49(7):761-766.
APA Cai, Chunfang.,Li, Kaikai.,Liu, Dawei.,John, Cedric M..,Wang, Daowei.,...&Jiang, Lei.(2021).Anaerobic oxidation of methane by Mn oxides in sulfate-poor environments.GEOLOGY,49(7),761-766.
MLA Cai, Chunfang,et al."Anaerobic oxidation of methane by Mn oxides in sulfate-poor environments".GEOLOGY 49.7(2021):761-766.

入库方式： OAI收割

来源：地质与地球物理研究所

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