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The geochemical behavior of tin and Late Cretaceous tin mineralization in South China
Sui QingLin1,2,3,4; Zhu HongLi1,2; Sun SaiJun1,2; Chen DengHui4; Zhao XiaoJian4; Wang ZhaoFei4
2020
Source PublicationACTA PETROLOGICA SINICA
ISSN1000-0569
Volume36Issue:1Pages:23-34
Corresponding AuthorSui QingLin(Qlinsui@163.com)
AbstractTin shows triple characteristics of chalcophile, lithophile and siderophile affinities in geological processes. It is a moderately incompatible element during mantle magmatism. Tin mineralization is mainly related to felsic magmatic activities. The geochemical properties of tin determine that its mineralization is mainly controlled by magmatic differentiation, source region properties, oxygen fugacity and volatile components. The high degree of crystallization differentiation can further enrich tin in magma, which is a common feature of granites related to tin mineralization. Whether tin mineralized granites are derived from enriched source rocks or not, however, remains controversial, the presence of tin-rich protoliths may increases the scale of tin mineralization. The decomposition of tin minerals in the source region is one of the key factors to control whether the magmatic melt is enriched in tin, hence high temperature melting is the basic condition for tin migration from source region. Tin is sensitive to oxygen fugacity. A reducing magma system is beneficial to tin mineralization, whereas volatile components, such as F, Cl, and B, play an active role in the migration and enrichment of tin. The distribution of tin deposits in the world is closely related to subduction zones, e. g. , the Tethys and the circumPacific tectonic domains have the main tin reserves of the world. Important tin mineralization events show regional and phased characteristics. Combined with the geochemical characteristics of tin and the distribution characteristics of tin deposits, we propose that the most favorable dynamic mechanism for tin mineralization is the roll-back of subducting slab, which triggers deep asthenosphere mantle upwelling, results in strong crust-mantle interaction, and forms granite rich in F, Cl, and B with low oxygen fugacity, which is favorable for tin mineralization. For example, the Late Cretaceous tin mineralization event in South China was controlled by the rollback of the subduction plate of the New Tethys Ocean.
KeywordTin deposit Oxygen fugacity volatile components Magma differentiation Slab roll-back
DOI10.18654/1000-0569/2020.01.04
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000533247400004
PublisherSCIENCE PRESS
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167461
Collection深海极端环境与生命过程研究中心
Corresponding AuthorSui QingLin
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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Geol Survey, Ctr Orogen Belt Geol, Xian Ctr Geol Survey, Xian 710054, 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
Sui QingLin,Zhu HongLi,Sun SaiJun,et al. The geochemical behavior of tin and Late Cretaceous tin mineralization in South China[J]. ACTA PETROLOGICA SINICA,2020,36(1):23-34.
APA Sui QingLin,Zhu HongLi,Sun SaiJun,Chen DengHui,Zhao XiaoJian,&Wang ZhaoFei.(2020).The geochemical behavior of tin and Late Cretaceous tin mineralization in South China.ACTA PETROLOGICA SINICA,36(1),23-34.
MLA Sui QingLin,et al."The geochemical behavior of tin and Late Cretaceous tin mineralization in South China".ACTA PETROLOGICA SINICA 36.1(2020):23-34.
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