| Noble gases in sulfide deposits of modern deep-sea hydrothermal systems: Implications for heat fluxes and hydrothermal fluid processes | |
| Zeng, Zhigang1,3; Niedermann, Samuel2; Chen, Shuai1; Wang, Xiaoyuan1; Li, Zhaoxue1 | |
| 2015-08-20 | |
| 发表期刊 | CHEMICAL GEOLOGY
 |
| 卷号 | 409期号:2015页码:1-11 |
| 文章类型 | Article |
| 摘要 | Studies of noble gases in seafloor sulfide deposits are an important tool for understanding the origin of oreforming fluids, both enabling the determination of noble gas sources and revealing the degree of fluid-rock interaction and mantle degassing. The noble gas concentrations and isotopic compositions of 27 sulfide, 3 sulfate, and 2 opal mineral aggregate samples have been studied in different hydrothermal fields from the East Pacific Rise, Mid-Atlantic Ridge, Central Indian Ridge, Southwest Indian Ridge, and North Fiji Back-Arc Basin. The helium concentrations and isotopic ratios in the sulfide aggregate samples are variable (He-4 0.12 to 22 x 10(-8) cm(3) STP/g; He-3/He-4 similar to 0.6 to 10.4 R-a), and most of the sulfide helium concentrations are higher than those in the opal mineral samples (He-4 0.017 and 0.028 x 10(-8) cm(3) STP/g), suggesting that the low-temperature fluids have lost their mantle helium during cooling. The helium of high (>7 Ra), medium (1-7 Ra), and low (approximate to 1 Ra) He-3/He-4 ratio samples is derived mainly from the MORB or OIB mantle by magma degassing, from mixing between hydrothermal fluid and seawater during ore-forming processes, and from ambient seawater, respectively. The high He-3/He-4 ratios (>7 Ra) of sulfides imply that high-temperature sulfides retain the helium isotopic compositions of the primary hydrothermal fluid, whereas low-temperature sulfides, sulfates, and opal minerals do not. |
| 关键词 | Noble Gases Massive Sulfides Sulfates Opal Seafloor Hydrothermal Systems |
| DOI | 10.1016/j.chemgeo.2015.05.007 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358525500001 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/49616 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Seafloor Hydrothermal Act Lab, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Deutsch GeoForschungsZentrum, D-14473 Potsdam, Germany 3.Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266071, 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,Niedermann, Samuel,Chen, Shuai,et al. Noble gases in sulfide deposits of modern deep-sea hydrothermal systems: Implications for heat fluxes and hydrothermal fluid processes[J]. CHEMICAL GEOLOGY,2015,409(2015):1-11. |
| APA | Zeng, Zhigang,Niedermann, Samuel,Chen, Shuai,Wang, Xiaoyuan,&Li, Zhaoxue.(2015).Noble gases in sulfide deposits of modern deep-sea hydrothermal systems: Implications for heat fluxes and hydrothermal fluid processes.CHEMICAL GEOLOGY,409(2015),1-11. |
| MLA | Zeng, Zhigang,et al."Noble gases in sulfide deposits of modern deep-sea hydrothermal systems: Implications for heat fluxes and hydrothermal fluid processes".CHEMICAL GEOLOGY 409.2015(2015):1-11. |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Noble gases in sulfi（993KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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