Pegmatite magmatic evolution and rare metal mineralization of the Dahongliutan pegmatite field, Western Kunlun Orogen: Constraints from the B isotopic composition and mineral-chemistry
文献类型：期刊论文
| 作者 | Cao, Rui4,5; Gao, Yongbao4; Chen, Bin3; Bagas, Leon4; Yan, Shengchao1; Huang, Chao2; Zhao, Hui3 |
| 刊名 | INTERNATIONAL GEOLOGY REVIEW
 |
| 出版日期 | 2021-04-10 |
| 页码 | 19 |
| ISSN号 | 0020-6814 |
| 关键词 | Pegmatite magmatic evolution rare metal mineralization b-isotope mesozoic dahongliutan pegmatite Western Kunlun Orogen |
| DOI | 10.1080/00206814.2021.1899062 |
| 英文摘要 | The Dahongliutan rare-metal pegmatite deposit, associated with the pegmatite dikes hosted by Dahongliutan pluton and metasedimentary rocks, is a new discovered Li-Be deposit in the the West Kunlun orogen, Northwest China. The Dahongliutan pegmatite is a classic and typical example of a highly fractionated Li-Ce-Ta (LCT) type pegmatite, with distinct regional zonation composed of well-developed garnet-tourmaline-microcline (GTM), beryl-tourmaline-muscovite (BTM) and spodumene-albite (SA) pegmatites from the barren core inward to outer zone. Detailed field studies, together with B-isotope studies of tourmaline and the chemistry of feldspar, muscovite and tourmaline, were undertaken to investigate the differentiation processes in a pegmatite magma and the different mineralizing episodes of the Dahongliutan rare-metal pegmatite deposit. Alkali metal fractionation trends (Rb, Cs and K/Rb) in the pegmatitic K-feldspar and muscovite define a primitive to evolved magmatic evolution. From low to high degrees of evolution, the mineralization stages of Dahongliutan pegmatite field are metal barren in centre, Be-rich in the intermediate and Li-rich in the outer zone. Furthermore, besides the magmatic tourmaline in the GTM pegmatite dikes, the fine-grained euhedral magmatic BTM-I type and subhedral to anhedral coarse-grained magmatic-hydrothermal BTM-II type in the BTM pegmatite dikes have been identified. The average delta B-11 values of the magmatic tourmalines in the GTM-type is -8.82, BTM-I type is -8.53 parts per thousand, and BTM-II type is -7.85 parts per thousand. Combined with petrography and chemical data, we suggest that the Dahongliutan pegmatite dikes were derived from metasedimentary source within the continental crust and the BTM-II type tourmaline is correlated with separation of an immiscible B-rich fluid during the magmatic-hydrothermal evolution. Consequently, highly fractional crystallization, albite alteration and liquid immiscibility were the main factors controlling the spatial and temporal decoupling of rare element mineralization in the Dahongliutan pegmatite deposit. |
| 资助项目 | National Natural Science Foundation of China[42030303] ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme[2019QZKK0804] ; National Key Research and Development Project[2019YFC0605201] ; China Geological Survey projects[DD20160004] ; China Geological Survey projects[DD20190143] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| 出版者 | TAYLOR & FRANCIS INC |
| WOS记录号 | WOS:000639756300001 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme ; National Key Research and Development Project ; National Key Research and Development Project ; China Geological Survey projects ; China Geological Survey projects ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme ; National Key Research and Development Project ; National Key Research and Development Project ; China Geological Survey projects ; China Geological Survey projects ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme ; National Key Research and Development Project ; National Key Research and Development Project ; China Geological Survey projects ; China Geological Survey projects ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme ; second Tibetan Plateau Scientific Expedition and Research (STEP) Programme ; National Key Research and Development Project ; National Key Research and Development Project ; China Geological Survey projects ; China Geological Survey projects |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101128]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Gao, Yongbao |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 2.Hefei Univ Technol, Sch Resources & Environm Engn, Hefei, Peoples R China 3.Southern Univ Sci & Technol, Dept Earth & Space Sci, Shenzhen, Peoples R China 4.Xian Ctr China Geol Survey, Minist Nat Resources, Key Lab Study Focused Magmatism & Giant Ore Depos, Xian, Peoples R China 5.Chengdu Univ Technol, Minist Educ, Key Lab Earth Explorat & Informat Technol, Chengdu 610059, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Rui,Gao, Yongbao,Chen, Bin,et al. Pegmatite magmatic evolution and rare metal mineralization of the Dahongliutan pegmatite field, Western Kunlun Orogen: Constraints from the B isotopic composition and mineral-chemistry[J]. INTERNATIONAL GEOLOGY REVIEW,2021:19. |
| APA | Cao, Rui.,Gao, Yongbao.,Chen, Bin.,Bagas, Leon.,Yan, Shengchao.,...&Zhao, Hui.(2021).Pegmatite magmatic evolution and rare metal mineralization of the Dahongliutan pegmatite field, Western Kunlun Orogen: Constraints from the B isotopic composition and mineral-chemistry.INTERNATIONAL GEOLOGY REVIEW,19. |
| MLA | Cao, Rui,et al."Pegmatite magmatic evolution and rare metal mineralization of the Dahongliutan pegmatite field, Western Kunlun Orogen: Constraints from the B isotopic composition and mineral-chemistry".INTERNATIONAL GEOLOGY REVIEW (2021):19. |
入库方式： OAI收割
来源：地质与地球物理研究所
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