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Discovery of the Qongjiagang giant lithium pegmatite deposit in Himalaya, Tibet, China
Qin KeZhang1,2; Zhao JunXing1; He ChangTong1,2; Shi RuiZhe L1,2
2021-11-01
Source PublicationACTA PETROLOGICA SINICA
ISSN1000-0569
Volume37Issue:11Pages:3277-3286
AbstractIn recent years, the genesis of highly fractionated Cenozoic Himalayan leucogranite, has attracted much attention because of its good potential for rare -metal mineralization. Field investigations and mineral resource surveys have pointed out that the Himalayan leucogranite belt may become an important strategic mineral reserve base for rare metals in China. At present, the discovered metal assemblages in the belt are dominated by beryllium -niobium -tantalum ( tin -tungsten) assemblage ( such as the Cuonadonglarge tin tungsten -beryllium deposit), but no industrial lithium ore body has been found. The present work reports a newly discovered, superlarge-scale pegmatite -type lithium deposit in the Qongjiagang area of the Higher Himalayan belt, and we revealed the geological characteristics of the first pegmatite -type lithium deposit in the Himalaya. The Qongjiagang pegmatites belong to peraluminous LCTfamily, REL-Li sub -type and albite-spodumene sub -style. The Qongjiagang rare -element pegmatite intruded into marble strata of the Pre -Cambrian Rouqiecun Group as pod -and lense-like bodies, and the ore minerals are mainly spodumene, columbite-group minerals, cassiterite and beryl. The Qongjiagang pegmatites have the internal zonation patterns from rim to core, including saccharoidal albite zone, layered aplite zone and massive microcline + spodumene zone, and the graphic pegmatite zone occurred in the border zone sometimes. Layered aplite zone and massive microcline + spodumene zone hosted a large proportion of spodumene. 44 samples out of 59 analyzed samples have the Li20 contents higher than 0. 80%, with average of 1. 30%. Our resource estimate indicates the Qongjiagang Li deposit is the first pegmatitic lithium deposit with economic value in the Himalayan leucogranite belt, and its discovery confirms good potentials in the findings of large granitic pegmatitic lithium deposit in the Higher Himalayan region of China.
KeywordQongjiagang lithium deposit Texture and zonation of spodumene pegmatite Examination and discovery Himalayan leucogranite Rare-element mineralization
DOI10.18654/1000-0569/2021.11.02
WOS KeywordGRANITES
Language英语
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000747486100002
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/104908
Collection矿产资源研究院重点实验室
Corresponding AuthorQin KeZhang
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
First Author AffilicationKey Laboratory of Mineral Resources, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Mineral Resources, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Qin KeZhang,Zhao JunXing,He ChangTong,et al. Discovery of the Qongjiagang giant lithium pegmatite deposit in Himalaya, Tibet, China[J]. ACTA PETROLOGICA SINICA,2021,37(11):3277-3286.
APA Qin KeZhang,Zhao JunXing,He ChangTong,&Shi RuiZhe L.(2021).Discovery of the Qongjiagang giant lithium pegmatite deposit in Himalaya, Tibet, China.ACTA PETROLOGICA SINICA,37(11),3277-3286.
MLA Qin KeZhang,et al."Discovery of the Qongjiagang giant lithium pegmatite deposit in Himalaya, Tibet, China".ACTA PETROLOGICA SINICA 37.11(2021):3277-3286.
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