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Mineralogical and micromorphological characteristics of Si-Fe-Mn oxyhydroxides from the PACMANUS hydrothermal field, Eastern Manus Basin
Zeng ZhiGang1; Chen Shuai1,2; Wang XiaoYuan1; Ouyang HeGen1,2; Yin XueBo1; Li ZhaoXue1; Zeng, ZG (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Seafloor Hydrothermal Act Lab, Qingdao 266071, Peoples R China.
2012-12-01
发表期刊SCIENCE CHINA-EARTH SCIENCES
ISSN1674-7313
卷号55期号:12页码:2039-2048
文章类型Article
摘要The mineralogical and micromorphological characteristics of Si-Fe-Mn oxyhydroxides from the dacite-hosted PACMANUS hydrothermal field were analyzed. The samples are poorly crystallized Si-Fe-Mn oxyhydroxides with minor birnessite, todorokite, nontronite, goethite, and opal-A. There are some microtextures which are rather like fossil microbes such as the filamentous silica and the hollow pipes. Flakes of nontronite crystals are found either forming a honeycomb texture or distributed on the surface of the hollow pipes. Nontronite is the product precipitated from low-temperature hydrothermal fluids, and microbes may play a role in its formation. Si-Fe-Mn oxyhydroxides have two kinds of nuclei: Si-Mn nuclei and Si nuclei, both enveloped by the similar Si-Fe outer layer, existing in the rod-shaped oxyhydroxide and spheroidal oxyhydroxide, respectively. In the Si-Mn nuclei, the concentration of SiO2 is between 39.32 wt% and 86.31 wt%, and MnO concentration is between 4.97 wt% and 27.01 wt%, but Fe2O3 concentration is very low (0.54 wt%-3.43 wt%). In the Si nucleus the concentration of SiO2 is 90.17 wt%, but concentration of MnO and Fe2O3 are low, with 0.06 wt% and 3.47 wt%, respectively. The formation of the Si-Mn nucleus is closely related to microbes, whereas the Si nucleus is of inorganic origin.
关键词Si-fe-mn Oxyhydroxide Nontronite Microbe Pacmanus Hydrothermal Field Eastern Manus Basin
学科领域Geosciences, Multidisciplinary
DOI10.1007/s11430-012-4536-7
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收录类别SCI
语种英语
WOS记录号WOS:000312346200011
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被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/12508
专题海洋地质与环境重点实验室
通讯作者Zeng, ZG (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Seafloor Hydrothermal Act Lab, Qingdao 266071, Peoples R China.
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Seafloor Hydrothermal Act Lab, Qingdao 266071, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
第一作者单位中国科学院海洋研究所
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Zeng ZhiGang,Chen Shuai,Wang XiaoYuan,et al. Mineralogical and micromorphological characteristics of Si-Fe-Mn oxyhydroxides from the PACMANUS hydrothermal field, Eastern Manus Basin[J]. SCIENCE CHINA-EARTH SCIENCES,2012,55(12):2039-2048.
APA Zeng ZhiGang.,Chen Shuai.,Wang XiaoYuan.,Ouyang HeGen.,Yin XueBo.,...&Zeng, ZG .(2012).Mineralogical and micromorphological characteristics of Si-Fe-Mn oxyhydroxides from the PACMANUS hydrothermal field, Eastern Manus Basin.SCIENCE CHINA-EARTH SCIENCES,55(12),2039-2048.
MLA Zeng ZhiGang,et al."Mineralogical and micromorphological characteristics of Si-Fe-Mn oxyhydroxides from the PACMANUS hydrothermal field, Eastern Manus Basin".SCIENCE CHINA-EARTH SCIENCES 55.12(2012):2039-2048.
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