Cesium-rubidium mineralization in Himalayan leucogranites
文献类型：期刊论文
| 作者 | Hu, Fangyang2; Liu, Xiaochi1 ; He, Shaoxiong1,3; Wang, Jiamin1; Wu, Fuyuan1,3
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| 刊名 | SCIENCE CHINA-EARTH SCIENCES
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| 出版日期 | 2023-11-23 |
| 页码 | 26 |
| 关键词 | Himalaya Pollucite Lepidolite Leucogranite Rare-metal elements |
| ISSN号 | 1674-7313 |
| DOI | 10.1007/s11430-022-1159-3 |
| 英文摘要 | This paper presents a study of a newly discovered pollucite-lepidolite-albite granite (PLAG) in the Himalayan leucogranite belt, which marks the first occurrence of pollucite, a major cesium silicate mineral, in the Himalayan orogenic belt (China). The rock appears at the northern part of the Gyirong pluton, coexisting with the tourmaline-bearing two-mica granite (TMG). Primary rare-metal minerals include lepidolite (Li), spodumene (Li), pollucite (Cs), cassiterite (Sn), and microlite (Ta). Micas, mainly lithian muscovite to lepidolite, contain 4.07 wt.% Li2O and 0.76 wt.% Rb2O on average. The average Li2O content of the spodumene is 7.95 wt.%. Pollucite not only has an average Cs2O content of 34 wt.%, but also has an elevated Rb2O content of about 0.16 wt.%. Notably, this granite attains industrial grades for rare metals, specifically with Li2O, Rb2O, and Cs2O contents of 0.49-1.19 wt.%, 0.12-0.24 wt.%, and 0.69-2.33 wt.%, respectively. Dating results of magmatic accessory cassiterite and monazite indicated that the PLAG was formed at 19-18 Ma, slightly later than the TMG (22-20 Ma) of the Gyirong pluton. Thus, these two types of granites may form within the same magmatic system considering their pulsating intrusive contact, formation ages, and whole-rock and mineral chemical compositions. Furthermore, the abundant presence of pollucite suggests that the PLAG experienced high degrees of magmatic fractionation. In comparison to the Pusila spodumene pegmatite in the Himalaya and the Yashan topaz-lepidolite granite in Jiangxi, South China, the Gyirong PLAG exhibits different whole-rock and mineral compositions, resulting from differences in source materials and fractionation processes. Notably, the difference in fluorine (F) content may determine the degree of rare-metal element enrichment. The discovery of Gyirong PLAG highlights multiple stages and types of rare-metal mineralization in the Himalayan leucogranite belt, which is controlled by the South Tibetan Detachment System. The Cs-bearing geyserite deposit exposed along the Yarlung-Zangbo River, together with Himalayan leucogranites, constitutes two systems of rare-metal elements migration and enrichment. These two systems reflect the interaction among Earth systems across time and space, emphasizing how the Himalayan orogeny controls mineralization. As a result, the Himalayan leucogranite belt has considerable prospecting potential for cesium and rubidium resources and may be a crucial area for future exploration and resource utilization. |
| WOS关键词 | HIGHLY FRACTIONATED GRANITES ; SOUTH CHINA CONSTRAINTS ; U-PB ; ISOTOPIC COMPOSITIONS ; COLUMBITE-TANTALITE ; JIANGXI PROVINCE ; GNEISS DOME ; LI DEPOSIT ; ZR-HF ; PEGMATITE |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research[2022QZKK0203] ; Second Tibetan Plateau Scientific Expedition and Research[2019QZKK0802] ; National Natural Science Foundation of China[91755000] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41902055] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001111095800001 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research ; Second Tibetan Plateau Scientific Expedition and Research ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111137]  |
| 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 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 | Hu, Fangyang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Key Lab Mineral Resources, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Fangyang,Liu, Xiaochi,He, Shaoxiong,et al. Cesium-rubidium mineralization in Himalayan leucogranites[J]. SCIENCE CHINA-EARTH SCIENCES,2023:26. |
| APA | Hu, Fangyang,Liu, Xiaochi,He, Shaoxiong,Wang, Jiamin,&Wu, Fuyuan.(2023).Cesium-rubidium mineralization in Himalayan leucogranites.SCIENCE CHINA-EARTH SCIENCES,26. |
| MLA | Hu, Fangyang,et al."Cesium-rubidium mineralization in Himalayan leucogranites".SCIENCE CHINA-EARTH SCIENCES (2023):26. |
入库方式： OAI收割
来源：地质与地球物理研究所
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