Mesoproterozoic seafloor authigenic glauconite-berthierine: Indicator of enhanced reverse weathering on early Earth
文献类型：期刊论文
| 作者 | Ma, Jianbai1,2; Shi, Xiaoying1,2; Lechte, Maxwell4; Zhou, Xiqiang5,6; Wang, Zhenfei7,8; Huang, Kangjun7,8; Rudmin, Maxim9; Tang, Dongjie1,3 |
| 刊名 | AMERICAN MINERALOGIST
 |
| 出版日期 | 2022-01-27 |
| 卷号 | 107期号:1页码:116-130 |
| 关键词 | Ferruginous condition dissimilatory iron reduction Xiamaling Formation berthierine glauconite reverse weathering |
| ISSN号 | 0003-004X |
| DOI | 10.2138/am-2021-7904 |
| 英文摘要 | Sedimentary records suggest that the mid-Proterozoic (ca. 1.8-0.8 Ga) was persistently characterized by a greenhouse climate despite significantly lower solar luminosity compared to modern levels. To maintain greenhouse conditions, the partial pressure of carbon dioxide (pCO2) must have remained elevated, possibly indicative of key differences in the complexities of the carbon cycle compared to the modern. Modeling has suggested that high pCO(2) was likely maintained by elevated rates of "reverse weathering:" marine authigenic clay formation, a process that consumes alkalinity and generates CO2. This process is kinetically slow in modern marine environments, yet is hypothesized to have been enhanced during the mid-Proterozoic due to the greater availability of important species for clay authigenesis such as silica and ferrous iron. This hypothesis is testable using the geological record, because enhanced reverse weathering would lead to the formation of abundant marine authigenic clays. However, the distribution of marine authigenic clays in the Proterozoic sedimentary record has not been paid sufficient attention. In this study, we report the presence of authigenic clays (glauconite and berthierine) from the Xiamaling Formation (ca. 1.4 Ga), North China. The glauconite-berthierine horizons occur as millimeter- to centimeter-thick laminae interbedded with muddy siltstone and feature detrital grains supported by the clay matrix. In places, these layers were partially reworked to form soft and cohesive intraclastic sands, suggesting a syndepositional origin. We hypothesize that marine iron cycling in the iron- and silica-rich mid-Proterozoic oceans may have facilitated the formation of authigenic iron-rich clay during the deposition of the Xiamaling Formation. The formation of iron-hydroxides on the seafloor-and the local increase in pH caused by subsequent dissimilatory iron reduction-could have resulted in the absorption of SiO2, Al(OH)(3), and Fe(OH)(2) to form soft, cohesive and noncrystalline Fe(OH)(3)-SiO2-Al(OH)(3)-Fe(OH)(2) gels. These gels would have subsequently converted to glauconite/berthierine through aging. The transformation from glauconite-rich layers to berthierine-rich laminae was likely facilitated by a greater availability of Fe(II), and therefore higher Fe(II)/TFe and Fe/ Si ratios. We suggest that the relatively rapid formation of syndepositional, seafloor berthierine and glauconite layers in the basal Xiamaling Formation is the result of enhanced reverse weathering during this time. This study provides an important geological support for carbon cycle models that invokes enhanced reverse weathering rates in the mid-Proterozoic ocean that may have helped to maintain a high-baseline pCO(2) during this time. |
| WOS关键词 | CLAY MINERAL FORMATION ; NORTH CHINA CRATON ; COLUMBIA SUPERCONTINENT ; FERRUGINOUS CONDITIONS ; XIAMALING FORMATION ; WESTERN-AUSTRALIA ; ATMOSPHERIC CO2 ; LOW-LATITUDE ; ORIGIN ; CHAMOSITE |
| 资助项目 | National Natural Science Foundation of China[41930320] ; National Natural Science Foundation of China[41972028] ; National Natural Science Foundation of China[41973008] ; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-201905] ; Chinese "111" project[B20011] ; Fundamental Research Funds for the Central Universities[2652019093] ; Fundamental Research Funds for the Central Universities[265201925] ; Fonds de Recherche du Quebec-Nature et Technologies |
| WOS研究方向 | Geochemistry & Geophysics ; Mineralogy |
| 语种 | 英语 |
| WOS记录号 | WOS:000736146300012 |
| 出版者 | MINERALOGICAL SOC AMER |
| 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 ; Chinese "111" project ; Chinese "111" project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 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 ; Chinese "111" project ; Chinese "111" project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 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 ; Chinese "111" project ; Chinese "111" project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 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 ; Chinese "111" project ; Chinese "111" project ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fonds de Recherche du Quebec-Nature et Technologies ; Fonds de Recherche du Quebec-Nature et Technologies |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/103990]  |
| 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.China Univ Geosci Beijing, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China 2.China Univ Geosci Beijing, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 3.China Univ Geosci Beijing, Inst Earth Sci, Beijing 100083, Peoples R China 4.McGill Univ, Dept Earth & Planetary Sci, 3450 Univ St, Montreal, PQ H3A 0E8, Canada 5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 6.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 7.Northwest Univ, State Key Lab Continental Dynam, Xian 710069, Peoples R China 8.Northwest Univ, Early Life Inst, Dept Geol, Xian 710069, Peoples R China 9.Tomsk Polytech Univ, Sch Earth Sci & Engn, Div Geol, Tomsk 634050, Russia |
| 推荐引用方式 GB/T 7714 | Ma, Jianbai,Shi, Xiaoying,Lechte, Maxwell,et al. Mesoproterozoic seafloor authigenic glauconite-berthierine: Indicator of enhanced reverse weathering on early Earth[J]. AMERICAN MINERALOGIST,2022,107(1):116-130. |
| APA | Ma, Jianbai.,Shi, Xiaoying.,Lechte, Maxwell.,Zhou, Xiqiang.,Wang, Zhenfei.,...&Tang, Dongjie.(2022).Mesoproterozoic seafloor authigenic glauconite-berthierine: Indicator of enhanced reverse weathering on early Earth.AMERICAN MINERALOGIST,107(1),116-130. |
| MLA | Ma, Jianbai,et al."Mesoproterozoic seafloor authigenic glauconite-berthierine: Indicator of enhanced reverse weathering on early Earth".AMERICAN MINERALOGIST 107.1(2022):116-130. |
入库方式： OAI收割
来源：地质与地球物理研究所
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