The big mantle wedge and decratonic gold deposits
文献类型：期刊论文
| 作者 | Zhu, Rixiang2; Sun, Weidong1,3,4 |
| 刊名 | SCIENCE CHINA-EARTH SCIENCES
 |
| 出版日期 | 2021-03-26 |
| 页码 | 12 |
| 关键词 | Big mantle wedge Serpentine Pargasite Craton destruction Explosive gold mineralization Hydrogen |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-020-9733-1 |
| 英文摘要 | The Circum-Pacific subduction zone is a famous gold metallogenic domain in the world, with two important gold metallogenic provinces, the North China Craton and Nevada, which are related to the destruction of the North China Craton and the Wyoming Craton, respectively. Their ore-forming fluids were possibly derived from the stagnant slab in the mantle transition zone. The oceanic lithospheric mantle usually contains serpentine layers up to thousands of meters thick. During plate subduction, serpentine is dehydrated at depths of <200 km and transformed into high-pressure hydrous minerals, known as Phases A to E, which carries water to the depth of >300 km. The overlying big mantle wedge is hydrated during the breakdown of these hydrous facies in the mantle transition zone. The dehydration of the subducted slab in the big mantle wedge releases sulfur-rich fluid, which extracts gold and other chalcophile elements in the surrounding rocks, forming gold-rich fluid. Because the cratonic geotherm is lower than the water-saturated solidus line of lherzolite, the fluid cannot trigger partial melting. Instead, it induces metasomatism and forms pargasite and other water-bearing minerals when it migrates upward to depths of less than 100 km in the cratonic lithospheric mantle, resulting in a water- and gold-rich weak layer. During the destruction of craton, the weak layer is destabilized, releasing gold-bearing fluids that accelerate the destruction. The ore-forming fluids migrate along the shallow weak zone and are accumulated at shallow depths, and subsequently escape along deep faults during major tectonic events, leading to explosive gold mineralization. The ore-forming fluids are rich in ferrous iron, which releases hydrogen at low pressure through iron hydrolysis. Therefore, decratonic gold deposits are often reduced deposits. |
| 资助项目 | National Natural Science Foundation of China[41688103] ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China[2016YFC0600408] ; Taishan Scholar Program of Shandong[ts201712075] ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao)[2017ASTCP-OS07] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000634640400003 |
| 出版者 | SCIENCE PRESS |
| 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 ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; "Deep Earth Resources Exploration and Exploitation" National Key Research & Development Program of the Ministry of Science and Technology of China ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Taishan Scholar Program of Shandong ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) ; Aoshan Scholar Program of the Pilot National Laboratory for Marine Science and Technology (Qingdao) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101049]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Zhu, Rixiang |
| 作者单位 | 1.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Sch Marine Sci, Being 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Rixiang,Sun, Weidong. The big mantle wedge and decratonic gold deposits[J]. SCIENCE CHINA-EARTH SCIENCES,2021:12. |
| APA | Zhu, Rixiang,&Sun, Weidong.(2021).The big mantle wedge and decratonic gold deposits.SCIENCE CHINA-EARTH SCIENCES,12. |
| MLA | Zhu, Rixiang,et al."The big mantle wedge and decratonic gold deposits".SCIENCE CHINA-EARTH SCIENCES (2021):12. |
入库方式： OAI收割
来源：地质与地球物理研究所
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