中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 岩石圈演化国家重点实验室
Mineralogy, petrology and P-T conditions of the spodumene pegmatites and surrounding meta-sediments in Lhozhag, eastern Himalaya

文献类型：期刊论文

作者Wang, Jia-Min1; Hou, Kang-Shi1,4; Yang, Lei5; Liu, Xiao-Chi1; Wang, Ru-Cheng2; Li, Guang-Ming3; Fu, Jian-Gang3; Tian, Yu-Lu1,4
刊名LITHOS
出版日期2023-11-01
卷号456页码:21
ISSN号0024-4937
关键词Himalaya Rare -metals Spodumene pegmatite Andalusite-staurolite phyllite Contact metamorphism P -T conditions
DOI10.1016/j.lithos.2023.107295
英文摘要Several giant industrial-grade rare-metal deposits have been discovered in the Himalaya most recently. However, the mechanism of how rare-metals mineralization formed in the prototype of the collisional belt is poorly understood, mainly due to insufficient studies on mineralogy, petrology and emplacement conditions. In this study, we have reported the whole-rock and mineral compositions of spodumene pegmatites, leucogranite, skarns and P-T paths of metapelites from Lhozhag, eastern Himalaya. Four spodumene pegmatite veins were studied that are enriched in lithium, beryllium, cesium and tantalite (Li-Cs-Ta subtype), mainly hosted by minerals of spodumene, petalite, elbaite, lepidolite, zinnwaldite, and margarite. Li-Be margarite is first reported from the Himalaya, and its lithium and beryllium come from the breakdown of spodumene and beryl. The surrounding skarns are enriched in lithium, beryllium, and tin, mainly hosted by minerals of vesuvianite, scapolite and garnet. Petrography and P-T estimates from the andalusite-staurolite phyllites suggest two stages of metamorphism that earlier Barrovian metamorphism was superimposed by Buchan metamorphism at conditions of 3.1 & PLUSMN; 0.3 kbar and 535 degrees C or 580 degrees C (52-56 degrees C/km) during leucogranite emplacement. Combined with zircon and monazite saturation temperatures and conditions of Buchan metamorphism, the leucogranites should have undergone a first-stage isothermal decompression to crystallization conditions at -3.1 kbar and 650-720 degrees C and a secondstage isobaric cooling at -3.1 kbar. The pegmatite probably underwent a similar P-T evolution supported by the appearance of two-stage growth of spodumene (Spd-1 and Spd-2 + Qz), petalite corona around spodumene, and cymatolite. The leucogranites/pegmatites have emplaced into the surficial Tethyan Himalayan Sequence simultaneously, causing contact metamorphism, skarnization and undercooling, which may have facilitated raremetals mineralization in the pegmatites and skarns during the emplacement stage. We suggest that the pegmatites and skarns in Lhozhag, eastern Himalaya have enormous potential for rare-metals exploration.
WOS关键词RARE-ELEMENT PEGMATITE ; GRANITIC PEGMATITES ; FLUID INCLUSIONS ; FIELD RELATIONS ; LOW-PRESSURE ; LEUKOGRANITE ; CRYSTALLIZATION ; EVOLUTION ; GEOCHEMISTRY ; TEMPERATURE
资助项目Second Tibetan Plateau Scientific Expedition and Research program[2019QZKK0703] ; Second Tibetan Plateau Scientific Expedition and Research program[2019QZKK0802] ; National Natural Science Foundation of China[41972065] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2022065] ; State Key Laboratory of Lithospheric Evolution[E152510201]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
出版者ELSEVIER
WOS记录号WOS:001050905000001
资助机构Second Tibetan Plateau Scientific Expedition and Research program ; Second Tibetan Plateau Scientific Expedition and Research program ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; Second Tibetan Plateau Scientific Expedition and Research program ; Second Tibetan Plateau Scientific Expedition and Research program ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; Second Tibetan Plateau Scientific Expedition and Research program ; Second Tibetan Plateau Scientific Expedition and Research program ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; Second Tibetan Plateau Scientific Expedition and Research program ; Second Tibetan Plateau Scientific Expedition and Research program ; 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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution ; State Key Laboratory of Lithospheric Evolution
源URL[http://ir.iggcas.ac.cn/handle/132A11/111387]  
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Wang, Jia-Min
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut & Environm Evolvem, Beijing 100029, Peoples R China
2.Nanjing Univ, Sch Earth Sci & Engn, Nanjing 210023, Peoples R China
3.China Geol Survey, Chengdu Ctr, Chengdu 610081, Sichuan, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100029, Peoples R China
5.Chengdu Univ Technol, Coll Earth Sci, Chengdu 610059, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Jia-Min,Hou, Kang-Shi,Yang, Lei,et al. Mineralogy, petrology and P-T conditions of the spodumene pegmatites and surrounding meta-sediments in Lhozhag, eastern Himalaya[J]. LITHOS,2023,456:21.
APA Wang, Jia-Min.,Hou, Kang-Shi.,Yang, Lei.,Liu, Xiao-Chi.,Wang, Ru-Cheng.,...&Tian, Yu-Lu.(2023).Mineralogy, petrology and P-T conditions of the spodumene pegmatites and surrounding meta-sediments in Lhozhag, eastern Himalaya.LITHOS,456,21.
MLA Wang, Jia-Min,et al."Mineralogy, petrology and P-T conditions of the spodumene pegmatites and surrounding meta-sediments in Lhozhag, eastern Himalaya".LITHOS 456(2023):21.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。