"Garnet" Lherzolites in the Purang Ophiolite, Tibet: Evidence for Exhumation of Deep Oceanic Lithospheric Mantle
文献类型：期刊论文
| 作者 | Gong, Xiao-Han4; Shi, Ren-Deng1,5; Xu, Ji-Feng4; Huang, Qi-Shuai1; Huang, Xiao-Xiao3; Su, Ben-Xun2 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2020-01-16 |
| 卷号 | 47期号:1页码:10 |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2019GL086101 |
| 英文摘要 | Ophiolites commonly sample the uppermost parts (15-20 km) of fossil oceanic lithosphere. However, in recent years, the documentation of diamonds, super-reducing (e.g., SiC), and other "unusual" minerals from several ophiolitic peridotites and chromitites (e.g., Tibet and the Polar Urals) has caused debate concerning their origin (i.e., deep vs. shallower upper mantle). Here we report on symplectite-bearing lherzolites from the Purang ophiolite in Tibet, which preserve the first compelling evidence of garnet-facies protoliths. These lherzolites were previously formed and stabilized at a depth of similar to 85-100 km, which is much deeper than generally suggested and approaches the depth (similar to 120 km) required for stabilizing the diamonds. Combining with other key observations, we suggest the Purang garnet-bearing peridotites may represent mixtures of oceanic lithosphere domains with diverse origins; they were rapidly exhumed at a variety of mantle depths within a subduction channel associated with oceanic slab retreat. |
| WOS关键词 | YARLUNG-ZANGBO SUTURE ; LUOBUSA OPHIOLITE ; PODIFORM CHROMITITES ; SPINEL PERIDOTITE ; YUNGBWA OPHIOLITE ; XIGAZE OPHIOLITE ; SUBDUCTION INITIATION ; RONDA PERIDOTITE ; DIAMOND-BEARING ; TRANSITION ZONE |
| 资助项目 | National Natural Science Foundation of China[41672054] ; National Natural Science Foundation of China[41802046] ; National Natural Science Foundation of China[41972052] ; Second Tibetan Plateau Scientific Expedition and Research Program[STEP 2019QZKK0801] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000513983400058 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/95659]  |
| 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 | Shi, Ren-Deng; Xu, Ji-Feng |
| 作者单位 | 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Mineral Resources, Beijing, Peoples R China 3.North China Univ Water Resources & Elect Power, Coll Geosci & Engn, Zhengzhou, Henan, Peoples R China 4.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing, Peoples R China 5.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, Xiao-Han,Shi, Ren-Deng,Xu, Ji-Feng,et al. "Garnet" Lherzolites in the Purang Ophiolite, Tibet: Evidence for Exhumation of Deep Oceanic Lithospheric Mantle[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(1):10. |
| APA | Gong, Xiao-Han,Shi, Ren-Deng,Xu, Ji-Feng,Huang, Qi-Shuai,Huang, Xiao-Xiao,&Su, Ben-Xun.(2020)."Garnet" Lherzolites in the Purang Ophiolite, Tibet: Evidence for Exhumation of Deep Oceanic Lithospheric Mantle.GEOPHYSICAL RESEARCH LETTERS,47(1),10. |
| MLA | Gong, Xiao-Han,et al.""Garnet" Lherzolites in the Purang Ophiolite, Tibet: Evidence for Exhumation of Deep Oceanic Lithospheric Mantle".GEOPHYSICAL RESEARCH LETTERS 47.1(2020):10. |
入库方式： OAI收割
来源：地质与地球物理研究所
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