Unravelling slab delta 34S compositions from in-situ sulphide delta 34S studies of high-pressure metamorphic rocks
文献类型：期刊论文
| 作者 | Li, Ji-Lei2,3; Klemd, Reiner1; Huang, Gao-Feng2,3,5; Ague, Jay J.4; Gao, Jun2,3 |
| 刊名 | INTERNATIONAL GEOLOGY REVIEW
 |
| 出版日期 | 2020-10-14 |
| 页码 | 21 |
| ISSN号 | 0020-6814 |
| 关键词 | sulphur isotope sulphide high-pressure metamorphism eclogite subduction zone |
| DOI | 10.1080/00206814.2020.1827305 |
| 英文摘要 | Sulphur is of particular importance in the subduction zone system, as it is thought to be intimately related to the arc redox state and metallogenesis above the slab. Knowing the sulphur isotope compositions of the subducted slab, and identifying the delta S-34 variations between the pre-subduction oceanic lithosphere and its high-pressure (HP) equivalents is of great importance for understanding the sulphur behaviour in subduction zones and the long-term sulphur recycling of the Earth. In this study, we undertook secondary ion mass spectroscopy (SIMS) in-situ delta S-34 analyses of sulphides from metasediments, mafic blueschists/eclogites, and ultramafic slab serpentinites from the Southwestern Tianshan HP-UHP metamorphic belt, which represents one of the deepest fossil subduction zones on Earth. By integrating the in-situ delta S-34 compositions of sulphides studied here and those reported from worldwide HP-UHP metamorphic terranes, we found that prograde to peak metamorphic sulphides of metasediments, metabasites/metagabbros, and slab HP serpentinites have delta S-34 values ranging from -33 to -6 parts per thousand, -4 to +4 parts per thousand, and +2 to +18 parts per thousand, respectively. However, retrograde metasomatism of HP rocks during exhumation may alter the delta S-34 compositions of sulphides. The integrated dataset proposes that sulphides in subducting slab sequences retain their protolith's delta S-34 signatures during HP metamorphism. The delta S-34 inheritance indicates that no large isotope fractionation is expected to occur in subduction zones. It further suggests that evaluations of slab subduction effects on the delta S-34 signature of arc magmatism and the deep mantle should consider pre-subduction processes such as ridge geodynamic setting and hydrothermal alteration. |
| WOS关键词 | TRACE-ELEMENT MOBILIZATION ; WESTERN TIANSHAN ; SUBDUCTION ZONES ; SULFUR ISOTOPES ; OCEANIC-CRUST ; NW CHINA ; EVOLUTION ; GEOCHEMISTRY ; SEDIMENTS ; ECLOGITE |
| 资助项目 | National Natural Science Foundation of China[41972060] ; National Natural Science Foundation of China[41772056] ; National Key Research and Development Program of China[2018YFA0702701] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2018090] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS INC |
| WOS记录号 | WOS:000577393500001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/98301]  |
| 专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
| 通讯作者 | Li, Ji-Lei |
| 作者单位 | 1.Univ Erlangen Nurnberg, GeoZentrum Nordbayern, Erlangen, Germany 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 4.Yale Univ, Dept Earth & Planetary Sci, New Haven, CT USA 5.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Ji-Lei,Klemd, Reiner,Huang, Gao-Feng,et al. Unravelling slab delta 34S compositions from in-situ sulphide delta 34S studies of high-pressure metamorphic rocks[J]. INTERNATIONAL GEOLOGY REVIEW,2020:21. |
| APA | Li, Ji-Lei,Klemd, Reiner,Huang, Gao-Feng,Ague, Jay J.,&Gao, Jun.(2020).Unravelling slab delta 34S compositions from in-situ sulphide delta 34S studies of high-pressure metamorphic rocks.INTERNATIONAL GEOLOGY REVIEW,21. |
| MLA | Li, Ji-Lei,et al."Unravelling slab delta 34S compositions from in-situ sulphide delta 34S studies of high-pressure metamorphic rocks".INTERNATIONAL GEOLOGY REVIEW (2020):21. |
入库方式： OAI收割
来源：地质与地球物理研究所
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