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 |
ISSN | 1674-7313 |
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 |
DOI | 10.1007/s11430-012-4536-7 |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000312346200011 |
引用统计 | |
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 |
推荐引用方式 GB/T 7714 | 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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