The geochemical behavior of tin and Late Cretaceous tin mineralization in South China

doi:10.18654/1000-0569/2020.01.04

	The geochemical behavior of tin and Late Cretaceous tin mineralization in South China
	Sui QingLin 1,2,3,4; Zhu HongLi 1,2; Sun SaiJun 1,2; Chen DengHui 4; Zhao XiaoJian 4; Wang ZhaoFei 4
	2020
发表期刊	ACTA PETROLOGICA SINICA
ISSN	1000-0569
卷号	36 期号:1 页码:23-34
通讯作者	Sui QingLin([email protected])
摘要	Tin 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.
关键词	Tin deposit Oxygen fugacity volatile components Magma differentiation Slab roll-back
DOI	10.18654/1000-0569/2020.01.04
收录类别	SCI
语种	英语
WOS研究方向	Geology
WOS类目	Geology
WOS记录号	WOS:000533247400004
出版者	SCIENCE PRESS
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/167461
专题	深海极端环境与生命过程研究中心
通讯作者	Sui QingLin
作者单位	1.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
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所
推荐引用方式 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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