| The geochemistry and formation of ferromanganese oxides on the eastern flank of the Gagua Ridge | |
Chen, Shuai1; Yin, Xuebo1; Wang, Xiaoyuan1,2; Huang, Xin3; Ma, Yao1 ; Guo, Kun1; Zeng, Zhigang1,2
| |
| 2018-04-01 | |
| 发表期刊 | ORE GEOLOGY REVIEWS
 |
| ISSN | 0169-1368 |
| 卷号 | 95页码:118-130 |
| 通讯作者 | Chen, Shuai(chenshuai@qdio.ac.cn) |
| 摘要 | Ferromanganese oxides on the eastern flank of the Gagua Ridge were collected from a water depth of 4071 m by TV-grab in 2016 and analyzed for their mineralogical and chemical compositions. These oxide fragments were broken from a large poly-core crust and can be divided into three parts: a dense inner nodule, a radial middle crust and a loose outer crust. The close proximity of the nodule and crust is similar to that observed in the amalgamated deposits from the Shatsky Rise, NW Pacific. All samples are mainly composed of Fe-rich vernadite, amorphous FeOOH and associated quartz, plagioclase, pyroxene and Mg-titanomagnetite. The mineralogy, Mn/ Fe ratios, rare earth element patterns, and slow growth rates (with a mean value of 6.2 mm/Myr) of the samples reflect their predominantly hydrogenetic origin. Co, Ni, Cu, REY and other critical metals are most enriched in the Mn-rich inner nodule samples, which also have the highest Fe contents. In contrast, the Si and Al contents in the samples of the middle and outer crusts are very high, up to 19 wt% and 6.29 wt%, respectively. Correlation analysis indicates that Li, Sc, Cr, Rb, and Cs tend to concentrate in detrital silica-aluminosilicate phases. The Gagua Ridge samples generally have lower metal contents than the hydrogenetic crusts and nodules from other open ocean regions, which can be attributed to their dilution by detritus and the poor development of a mid-water oxygen minimum zone. However, the incorporation of detritus has little effect on the generation of Fe-Mn oxides in the Gagua Ridge. Based on their mineralogy, textures and chemical variations, the accretion of the hydrogenetic Fe-Mn oxides was initiated in the late Miocene, and the formation of the amalgamated Fe-Mn deposits comprised three stages. |
| 关键词 | Gagua Ridge Ferromanganese oxides Geochemical composition Hydrogenetic growth |
| DOI | 10.1016/j.oregeorev.2018.02.026 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41306053] ; National Natural Science Foundation of China[41476044] ; National Natural Science Foundation of China[41325021] ; National Natural Science Foundation of China[41706052] ; National Key Basic Research Program of China[2013CB429700] ; Open Fund of the Key Laboratory of Marine Geology and Environment ; Chinese Academy of Sciences[MGE2015KG01] ; Chinese Academy of Sciences[MGE2011KG09] ; Special Fund for the Taishan Scholar Program of Shandong Province[ts201511061] ; Aoshan Talents Program ; Qingdao National Laboratory for Marine Science and Technology[2015ASTP-0S17] ; National Natural Science Foundation of China[41306053] ; National Natural Science Foundation of China[41476044] ; National Natural Science Foundation of China[41325021] ; National Natural Science Foundation of China[41706052] ; National Key Basic Research Program of China[2013CB429700] ; Open Fund of the Key Laboratory of Marine Geology and Environment ; Chinese Academy of Sciences[MGE2015KG01] ; Chinese Academy of Sciences[MGE2011KG09] ; Special Fund for the Taishan Scholar Program of Shandong Province[ts201511061] ; AoShan Talents Program ; Qingdao National Laboratory for Marine Science and Technology[2015ASTP-0S17] |
| WOS研究方向 | Geology ; Mineralogy ; Mining & Mineral Processing |
| WOS类目 | Geology ; Mineralogy ; Mining & Mineral Processing |
| WOS记录号 | WOS:000432760500008 |
| 出版者 | ELSEVIER SCIENCE BV |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/159387 |
| 专题 | 海洋地质与环境重点实验室 |
| 通讯作者 | Chen, Shuai |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266061, Peoples R China 3.Guangdong Ocean Univ, Guangdong Prov Key Lab Coastal Ocean Variat & Dis, Zhanjiang 524088, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 通讯作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Chen, Shuai,Yin, Xuebo,Wang, Xiaoyuan,et al. The geochemistry and formation of ferromanganese oxides on the eastern flank of the Gagua Ridge[J]. ORE GEOLOGY REVIEWS,2018,95:118-130. |
| APA | Chen, Shuai.,Yin, Xuebo.,Wang, Xiaoyuan.,Huang, Xin.,Ma, Yao.,...&Zeng, Zhigang.(2018).The geochemistry and formation of ferromanganese oxides on the eastern flank of the Gagua Ridge.ORE GEOLOGY REVIEWS,95,118-130. |
| MLA | Chen, Shuai,et al."The geochemistry and formation of ferromanganese oxides on the eastern flank of the Gagua Ridge".ORE GEOLOGY REVIEWS 95(2018):118-130. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| The geochemistry and（1644KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论