| Formation of Fe-Si-Mn oxyhydroxides at the PACMANUS hydrothermal field, Eastern Manus Basin: Mineralogical and geochemical evidence | |
| Zeng, Zhigang1; Ouyang, Hegen1,2; Yin, Xuebo1; Chen, Shuai1,2; Wang, Xiaoyuan1; Wu, Li1,2; Zeng, ZG (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Seafloor Hydrothermal Act Lab, 7 Nanhai Rd, Qingdao 266071, Peoples R China. | |
| 2012-10-22 | |
| 发表期刊 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| ISSN | 1367-9120 |
| 卷号 | 60页码:130-146 |
| 文章类型 | Article |
| 摘要 | Samples of Fe-Si-Mn oxyhydroxides were collected from the PACMANUS hydrothermal field, which lies in a young back-arc setting in the Eastern Manus Basin. The purpose of the study was to understand the origin and characteristics of Fe-Si-Mn oxyhydroxides associated with massive sulfides in a back-arc basin. The PACMANUS Fe-Si-Mn oxyhydroxides are composed of Fe oxyhydroxides and Mn oxyhydroxides with opal-A and nontronite; they have very low concentrations of trace elements (except for Ba, Mo. V and U) and rare earth elements, and they show REE distribution patterns with positive Eu anomalies and slight enrichments of LREEs. The Fe-Si-Mn oxyhydroxides appear to be precipitated mainly from hydrothermal fluid with limited seawater contamination, and scavenged trace metals are predominantly from the ambient seawater. The differences in the REE distribution patterns between the Fe-oxyhydroxide fraction and Mn-oxyhydroxide fraction originate from diagenetic processes. There are diverse filamentous microtextures resembling unique microbial populations, suggesting microbially-mediated mineralization during the precipitation of the Fe-Si-Mn oxyhydroxides. |
| 关键词 | Fe-si-mn Oxyhydroxides Hydrothermal Pacmanus Eastern Manus Basin |
| 学科领域 | Geosciences, Multidisciplinary |
| DOI | 10.1016/j.jseaes.2012.08.009 |
| URL | 查看原文 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000313766700009 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/12501 |
| 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, 7 Nanhai Rd, 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,Ouyang, Hegen,Yin, Xuebo,et al. Formation of Fe-Si-Mn oxyhydroxides at the PACMANUS hydrothermal field, Eastern Manus Basin: Mineralogical and geochemical evidence[J]. JOURNAL OF ASIAN EARTH SCIENCES,2012,60:130-146. |
| APA | Zeng, Zhigang.,Ouyang, Hegen.,Yin, Xuebo.,Chen, Shuai.,Wang, Xiaoyuan.,...&Zeng, ZG .(2012).Formation of Fe-Si-Mn oxyhydroxides at the PACMANUS hydrothermal field, Eastern Manus Basin: Mineralogical and geochemical evidence.JOURNAL OF ASIAN EARTH SCIENCES,60,130-146. |
| MLA | Zeng, Zhigang,et al."Formation of Fe-Si-Mn oxyhydroxides at the PACMANUS hydrothermal field, Eastern Manus Basin: Mineralogical and geochemical evidence".JOURNAL OF ASIAN EARTH SCIENCES 60(2012):130-146. |
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