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Late Cretaceous granitic magmatism and mineralization in the Yingwuling W-Sn deposit, South China: Constraints from zircon and cassiterite U-Pb geochronology and whole-rock geochemistry
Zhang, Lipeng1,2; Zhang, Rongqing3; Wu, Kai3; Chen, Yuxiao3; Li, Congying1,2; Hu, Yongbin3; He, Junjie3; Liang, Jinlong4; Sun, Weidong1,2,5,6
2018-05-01
Source PublicationORE GEOLOGY REVIEWS
ISSN0169-1368
Volume96Pages:115-129
Corresponding AuthorZhang, Lipeng(zhanglipeng@qdio.ac.cn) ; Sun, Weidong(weidongsun@qdio.ac.cn)
AbstractNumerous Late Cretaceous W-Sn deposits associated with granitic rocks were developed in the southern part of South China. However, the relationship among granitic magma, mineralization and tectonic setting remains disputed. The Yingwuling W-Sn deposit is spatially associated with K-feldspar granite and biotite granite in the southwestern part of Guangdong province, South China. LA-ICP-MS zircon U-Pb dating of K-feldspar granite, biotite granite and weathered ore-bearing granites yielded ages of similar to 79 Ma, which agree well with the LA-ICP-MS cassiterite U-Pb age of 79.6 +/- 0.9 Ma, indicating a close genetic link between the Yingwuling pluton and W-Sn mineralization. Geochemically, both K-feldspar granite and biotite granite show high SiO2, Na2O + K2O and low CaO, P2O5 contents, and they belong to shoshonitic series and high-K talc-alkaline series, respectively. High Rb/Sr ratios and low Nb/Ta and Zr/Hf ratios of the Yingwuling pluton indicate strong magmatic differentiation. Compared with K-feldspar granite, biotite granite experienced a higher degree of fractional crystallization as indicated by lower Fe2O3, TiO2, LREE, Sr, Eu, Ba and Zr contents and higher SiO2, HREE, Rb, Cs and Y contents. Their Sr and Nd isotope compositions (initial( 87)Sr/Sr- 86 = 0.7027 and 0.7097; epsilon(Nd)(t) = - 5.6 and - 5.7) are less radiogenic than that of the South China basement. Thus, it is likely that some juvenile materials were involved in the formation of these granitic intrusions. This is also favored by the wide range of zircon Hf isotope values (epsilon(Hf)(t) = - 6.6 to 0.8), which indicates mixing processes. A-type granite affinity of the Yingwuling pluton shows that it was possibly formed in an extensional setting. Late Cretaceous W-Sn deposits constitute an EW-trending belt from Guangdong to Yunnan provinces, which was compatible with the northward subduction of the Neo-Tethys plate rather than the northwestward subduction of the Pacific plate during Late Cretaceous. Combined with previous studies on magmatic rocks and tectonic activities during Late Cretaceous in South China, this study suggests that the subduction of the Neo-Tethys plate was most possibly responsible for the Late Cretaceous Yingwuling granitic intrusion and associated W-Sn mineralization.
KeywordYingwuling W-Sn deposit A-type granite Cassiterite U-Pb dating Late Cretaceous South China
DOI10.1016/j.oregeorev.2018.04.012
Indexed BySCI
Language英语
Funding ProjectNational Key R & D Program of China[2016YFC0600408] ; NSFC[91328204] ; NSFC[41403034]
WOS Research AreaGeology ; Mineralogy ; Mining & Mineral Processing
WOS SubjectGeology ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000434004700007
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/159381
Collection深海极端环境与生命过程研究中心
Corresponding AuthorZhang, Lipeng; Sun, Weidong
Affiliation1.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Geochem, CAS Key Lab Mineral & Metallogeny, Guangzhou 510640, Guangdong, Peoples R China
4.Chengdu Univ Technol, Dept Geochem, Chengdu 610059, Sichuan, Peoples R China
5.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China
6.Univ Chinese Acad Sci, Beijing 100094, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang, Lipeng,Zhang, Rongqing,Wu, Kai,et al. Late Cretaceous granitic magmatism and mineralization in the Yingwuling W-Sn deposit, South China: Constraints from zircon and cassiterite U-Pb geochronology and whole-rock geochemistry[J]. ORE GEOLOGY REVIEWS,2018,96:115-129.
APA Zhang, Lipeng.,Zhang, Rongqing.,Wu, Kai.,Chen, Yuxiao.,Li, Congying.,...&Sun, Weidong.(2018).Late Cretaceous granitic magmatism and mineralization in the Yingwuling W-Sn deposit, South China: Constraints from zircon and cassiterite U-Pb geochronology and whole-rock geochemistry.ORE GEOLOGY REVIEWS,96,115-129.
MLA Zhang, Lipeng,et al."Late Cretaceous granitic magmatism and mineralization in the Yingwuling W-Sn deposit, South China: Constraints from zircon and cassiterite U-Pb geochronology and whole-rock geochemistry".ORE GEOLOGY REVIEWS 96(2018):115-129.
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