Comparison of Sn-related granitoids in subduction and collision settings by accessory mineral geochemistry: A case study in the Tengchong-Lianghe tin belt, SW China

doi:10.1016/j.oregeorev.2023.105862

CORC > 海洋研究所 > 中国科学院海洋研究所

	Comparison of Sn-related granitoids in subduction and collision settings by accessory mineral geochemistry: A case study in the Tengchong-Lianghe tin belt, SW China
	Li, Xin 3,4; Zheng, Yuanchuan 3,4; Shen, Yang 1,2; Wu, Changda 5; Wang, Zixuan 3,4,10; Yang, Yanshen 9; Wang, Lu 8; Xiao, Yuanyuan 6,7; Dong, Guochen 3,4; Hou, Zengqian 5
刊名	ORE GEOLOGY REVIEWS
	2024-02-01
卷号	165 页码:18
关键词	Xiaolonghe Lailishan Granite-related Sn mineralization Accessory mineral geochemistry Tengchong-Lianghe tin belt
ISSN号	0169-1368
DOI	10.1016/j.oregeorev.2023.105862
通讯作者	Zheng, Yuanchuan(zheng_yc@126.com)
英文摘要	Magmatic-hydrothermal Sn deposits can develop in both subduction and collision settings. However, a systematic comparison of the geochemical fingerprints and petrogenetic evolution of Sn-related granitoids from both settings is still lacking. The Tengchong-Lianghe tin belt hosts numerous Sn deposits but of different metallogenic ages, such as the Xiaolonghe and Lailishan Sn deposits, which provide an ideal study area for addressing this issue. Zircon U-Pb dating suggests that the Xiaolonghe and Lailishan Sn-related granitoids were emplaced at 74.2-75.5 and 50.0-51.1 Ma, respectively. Given the initial India-Asia collision commenced at ca. 65-60 Ma, these ages, consistent with available Sn metallogenic ages, suggest the formation of the Xiaolonghe and Lailishan Sn deposits in subduction and collisional settings, respectively. New zircon and apatite compositions, and apatite Sr isotopic data, combined with previously reported whole-rock geochemical results, all indicate that the Xiaolonghe and Lailishan Sn-related granitoids share similar magma sources, evolution processes, redox states, and volatile contents. The presence of hornblende, high apatite Nd-N/Nd-N* (mostly > 1), and whole-rock evolutionary trends, together indicate that they represent fractionated I-type granites. Distinctly elevated apatite Sr-87/Sr-86 ratios (0.70988-0.71430) suggest that they originated from an ancient lower crust. Subsequently, they underwent an extensive fractional crystallization dominated by feldspar, as revealed by whole-rock, apatite, and zircon elemental variation trends. The low zircon Ce-N/Ce-N* (mainly < 200) and Delta FMQ (-1.9 to 1.7), together with elevated apatite F content (2.30-3.69 wt%), reveal that they crystallized from reduced and F-rich magmas. The relatively high whole-rock zircon saturation temperatures (mainly > 800 degree celsius) and Ba/Pb ratios imply that they were produced at a higher temperature by biotite-dehydration melting, which requires additional heat from the mantle. The specific mechanism that triggers mantle upwelling (oceanic slab subduction or break-off) could be the most significant difference between Sn-related granitoids formed during subduction and collision processes.
资助项目	National Natural Science Foundation of China[42022014] ; National Key Research and Development Program of China[2019YFA0708602] ; The Deep-time Digital Earth Science and Technology Leading Talents Team Funds for the Central Universities ; China University of Geosciences (Beijing) (Fundamental Research Funds for the Central Universities)[2652023001]
WOS关键词	A-TYPE GRANITES ; ZIRCON U-PB ; TRACE-ELEMENT COMPOSITION ; ELECTRON-MICROPROBE ; OXIDATION-STATE ; SOUTH CHINA ; OXYGEN FUGACITY ; SILICATE MELTS ; WESTERN YUNNAN ; SIBUMASU BLOCK
WOS研究方向	Geology ; Mineralogy ; Mining & Mineral Processing
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001164982900001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/184535]
专题	中国科学院海洋研究所
通讯作者	Zheng, Yuanchuan
作者单位	1.Tongji Univ, Sch Ocean & Earth Sci, Shanghai 200092, Peoples R China 2.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China 3.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 4.China Univ Geosci, Frontiers Sci Ctr Deep Time Digital Earth, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China 5.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 6.Laoshan Lab, Qingdao 266237, Peoples R China 7.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 8.China Geol Survey, Xian Ctr, Xian 710119, Peoples R China 9.Univ Sci & Technol Beijing, Sch Civil & Resource Engn, Beijing 100083, Peoples R China 10.China Univ Geosci, Sch Gemmol, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Li, Xin,Zheng, Yuanchuan,Shen, Yang,et al. Comparison of Sn-related granitoids in subduction and collision settings by accessory mineral geochemistry: A case study in the Tengchong-Lianghe tin belt, SW China[J]. ORE GEOLOGY REVIEWS,2024,165:18.
APA	Li, Xin.,Zheng, Yuanchuan.,Shen, Yang.,Wu, Changda.,Wang, Zixuan.,...&Hou, Zengqian.(2024).Comparison of Sn-related granitoids in subduction and collision settings by accessory mineral geochemistry: A case study in the Tengchong-Lianghe tin belt, SW China.ORE GEOLOGY REVIEWS,165,18.
MLA	Li, Xin,et al."Comparison of Sn-related granitoids in subduction and collision settings by accessory mineral geochemistry: A case study in the Tengchong-Lianghe tin belt, SW China".ORE GEOLOGY REVIEWS 165(2024):18.