Crustal architecture and metallogeny associated with the Paleo-Tethys evolution in the Eastern Kunlun Orogenic Belt, Northern Tibetan Plateau
文献类型：期刊论文
| 作者 | Zhang, Xinming1,2; Zhao, Xu2,3,4; Fu, Lebing2; Li, Yanjun2; Kamradt, Andreas1; Santosh, M.5,6; Xu, Chongwen2; Huang, Xiaokun2; Borg, Gregor1; Wei, Junhao2 |
| 刊名 | GEOSCIENCE FRONTIERS
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 14期号:6页码:21 |
| 关键词 | Hf-isotopic mapping Crustal thickness Metallogeny Tectonic evolution Crustal architecture Eastern Kunlun Orogenic Belt |
| ISSN号 | 1674-9871 |
| DOI | 10.1016/j.gsf.2023.101654 |
| 英文摘要 | The Eastern Kunlun Orogenic Belt (EKOB) in the Northern Tibet Plateau hosts a wide variety of metal deposits related to the Late Paleozoic to Mesozoic magmatism. In this study, we investigate the spatiotemporal distribution of the Late Paleozoic to Mesozoic granitic rocks and associated metal deposits in the EKOB and provide a comprehensive compilation of the geochronological, geochemical and isotopic data on these rocks. We compute regional zircon Hf isotope and crustal thickness maps from the data, based on which a comprehensive model is proposed involving subduction (ca. 270-240 Ma), continental collision (ca. 240-224 Ma), and post-collisional extension (ca. 224-200 Ma) for the Late Paleozoic to Mesozoic Paleo-Tethys evolution in the EKOB.Zircon Hf isotopic and crustal thickness mapping of Late Paleozoic to Mesozoic magmatic rocks was carried out to evaluate their spatio-temporal and genetic links with the regional metallogeny. The polymetallic Fe-skarn and porphyry Cu (Mo) deposits in the EKOB are located above the Moho uplift region, featuring a comparatively thin crust. Granites associated with porphyry Cu (Mo) and polymetallic Fe skarn mineralization are commonly characterized by high eHf(t) and younger TDMc values, whereas granite related to Cu-Mo-Sn skarn deposits exhibit more variable eHf(t) values, TDMc ages, and the crust thickness, which suggest that more crustal materials contributed to the formation of Cu-Mo-Sn skarn deposits than those for porphyry Cu (Mo) and polymetallic Fe skarn mineralization. In contrast, vein-type Au deposits are located primarily where the Moho surface displays a depression, i.e., where the continental crust is relatively thick. The magmatic rocks associated with Au mineralization are characterized by low eHf(t) and high TDMc values, representing reworked ancient crustal components, similar to those associated with porphyry Mo and epithermal Ag-Pb-Zn-(Au) deposits. Our study indicates that the emplacement of magmatic-hydrothermal deposits was controlled by the crustal structure and magma sources. & COPY; 2023 China University of Geosciences (Beijing) and Peking University. Published by Elsevier B.V. on behalf of China University of Geosciences (Beijing). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001028790000001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/74469]  |
| 专题 | 中国科学院矿物学与成矿学重点实验室 |
| 通讯作者 | Zhao, Xu |
| 作者单位 | 1.Martin Luther Univ Halle Wittenberg, Inst Geosci & Geog, D-06120 Halle, Saale, Germany 2.China Univ Geosci, Sch Earth Resource, Wuhan 430074, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangdong Prov Key Lab Mineral Phys & Mat, Guangzhou 510640, Peoples R China 4.Guangzhou Inst Geochem, Key Lab Mineral Phys & Mat, 511 Kehua St, Guangzhou 510640, Peoples R China 5.Univ Adelaide, Dept Earth Sci, Adelaide, SA 5005, Australia 6.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xinming,Zhao, Xu,Fu, Lebing,et al. Crustal architecture and metallogeny associated with the Paleo-Tethys evolution in the Eastern Kunlun Orogenic Belt, Northern Tibetan Plateau[J]. GEOSCIENCE FRONTIERS,2023,14(6):21. |
| APA | Zhang, Xinming.,Zhao, Xu.,Fu, Lebing.,Li, Yanjun.,Kamradt, Andreas.,...&Wei, Junhao.(2023).Crustal architecture and metallogeny associated with the Paleo-Tethys evolution in the Eastern Kunlun Orogenic Belt, Northern Tibetan Plateau.GEOSCIENCE FRONTIERS,14(6),21. |
| MLA | Zhang, Xinming,et al."Crustal architecture and metallogeny associated with the Paleo-Tethys evolution in the Eastern Kunlun Orogenic Belt, Northern Tibetan Plateau".GEOSCIENCE FRONTIERS 14.6(2023):21. |
入库方式： OAI收割
来源：广州地球化学研究所
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