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Genesis of tin-dominant polymetallic deposits in the Dachang district, South China: Insights from cassiterite U-Pb ages and trace element compositions
Guo, Jia1,2; Zhang, Rongqing1,3; Sun, Weidong4,5,6; Ling, Mingxing6,7; Hu, Yongbin1; Wu, Kai1,2; Luo, Ming8; Zhang, Lichuan8
2018-04-01
Source PublicationORE GEOLOGY REVIEWS
ISSN0169-1368
Volume95Pages:863-879
Corresponding AuthorZhang, Rongqing(rqzhang@nju.edu.cn) ; Ling, Mingxing(mxling@gig.ac.cn)
AbstractThe Dachang tin-dominant polymetallic district in western South China, hosts a total reserve of 110 Mt ore @ 1% Sn, 3-5% by-products of Zn, Pb, Sb, In and Cu, and 100 to 300 g/t Ag. Economic tin orebodies in the district mainly developed in Devonian limestone, black shale and siliceous rocks, as massive/stratiform and vein/ stockwork mineralization. LA-ICP-MS U-Pb dating on seven cassiterite samples from the Tongkeng-Changpo and Gaofeng Sn-Zn-Pb deposits, and the Dafulou, Huile and Kangma Sn-Zn deposits, yields weighted mean Pb-206/U-238 ages ranging from 90.3 +/- 1.8Ma to95.4 +/- 4.9 Ma. These dates are significantly younger than the Devonian ore-hosted strata, but agree well with the previously published zircon U-Pb ages of 96.6-93.9 Ma for the Longxianggai biotite granite within analytical uncertainties, showing a close temporal link between the granitic magmatism and tin mineralization. Cassiterite grains from various ore types in the Dachang district show clear growth zonations as reflected from their cathodoluminescence images. LA-ICP-MS trace element analyses of cassiterite grains indicate that they have relatively high Ti, Fe and W but low Nb and Ta contents, which corresponds to the clear luminescencing. Chemical variations of cassiterite from different ore types, i.e. cassiterite-sulfide ores and cassiterite-bearing quartz veins, are indistinguishable, except for more enriched Fe in cassiterite from cassiterite-quartz veins. Combined with Cretaceous U-Pb ages, elevated Fe and W contents of cassiterite suggest tin-dominant polymetallic deposits in the Dachang district were formed in a granite-related magmatic-hydrothermal system controlled by the Longxianggai biotite granite, precluding their syngenetic origin.
KeywordCassiterite U-Pb dating Trace element fingerprinting Dachang tin-dominant polymetallic district South China
DOI10.1016/j.oregeorev.2018.03.023
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2016YFC0600408] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18020102] ; National Natural Science Foundation of China[41702092] ; Guangdong Natural Science Funds[2014A030306032] ; Guangdong Natural Science Funds[2015TQ01Z611] ; Youth Innovation Promotion Association CAS[2016315]
WOS Research AreaGeology ; Mineralogy ; Mining & Mineral Processing
WOS SubjectGeology ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000432760500047
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/159348
Collection深海极端环境与生命过程研究中心
Corresponding AuthorZhang, Rongqing; Ling, Mingxing
Affiliation1.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Nanjing Univ, State Key Lab Mineral Deposits Res, Sch Earth Sci & Engn, Nanjing 210023, Jiangsu, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China
5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China
6.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
7.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Guangdong, Peoples R China
8.China Tin Grp, Liuzhou 545000, Peoples R China
Recommended Citation
GB/T 7714
Guo, Jia,Zhang, Rongqing,Sun, Weidong,et al. Genesis of tin-dominant polymetallic deposits in the Dachang district, South China: Insights from cassiterite U-Pb ages and trace element compositions[J]. ORE GEOLOGY REVIEWS,2018,95:863-879.
APA Guo, Jia.,Zhang, Rongqing.,Sun, Weidong.,Ling, Mingxing.,Hu, Yongbin.,...&Zhang, Lichuan.(2018).Genesis of tin-dominant polymetallic deposits in the Dachang district, South China: Insights from cassiterite U-Pb ages and trace element compositions.ORE GEOLOGY REVIEWS,95,863-879.
MLA Guo, Jia,et al."Genesis of tin-dominant polymetallic deposits in the Dachang district, South China: Insights from cassiterite U-Pb ages and trace element compositions".ORE GEOLOGY REVIEWS 95(2018):863-879.
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