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  2. 地质与地球物理研究所
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  4. 中国科学院矿产资源研究重点实验室
The fractures-controlled tin mineralization at the end of Late Cretaceous in the Songshan deposit, southwestern China: Constraints from U-Pb dating of zircon, garnet, and cassiterite

文献类型：期刊论文

作者Zhu, Yiting1,3; Li, Xiaofeng1,3; Li, Zufu2
刊名ORE GEOLOGY REVIEWS
出版日期2022-11-01
卷号150页码:21
关键词Zircon monazite garnet cassiteriteU-Pb ages Late Cretaceous Tin mineralization Songshan deposit Western Yunnan
ISSN号0169-1368
DOI10.1016/j.oregeorev.2022.105191
英文摘要The Songshan tin deposit is located in the northern Lincang granitic batholith along the Lancangjiang tin belt, Western Yunnan, southwestern China. The ore bodies mainly occur as tourmaline-quartz veins with NNE-and/or NW-trending in the Triassic Pinghejie granitic pluton, and the schist of the Proterozoic Songshan Formation. The previous study suggested the tin mineralization in the Songshan deposit should occur in the Triassic, but no directed age data support it. This hinders the understanding of the genesis of the Songshan tin deposit, especially the tin mineralization in the Lancangjiang tin belt. Here, we report the zircons U-Pb ages of 222.7 +/- 1.6 and 222.0 +/- 2.4 Ma for the granodiorite, 215.1 +/- 1.5 and 223.0 +/- 2.0 Ma for the biotite monzogranite, and 222.3 +/- 2.3 Ma for the alter granite from the Pinghejie granitic pluton. The monazite from the monzogranite yields a U-Pb age of 212.8 +/- 1.9 Ma. We also obtain two garnet U-Pb ages of 215.1 +/- 8.7 Ma and 213.5 +/- 7.2 Ma from skarn, and two cassiterite U-Pb ages of 76.6 +/- 1.5 Ma and 79.6 +/- 3.6 Ma from tin ores. These data suggest that tin mineralization in the Songshan deposit occurred at the end of Late Cretaceous, which is quite different from the ages of the Pinghejie granitic pluton emplaced and the formation of skarn. The zircon Hf isotopes (epsilon Hf(t) = -22 --12)and monazite Nd isotopes (epsilon Nd(t) =-13.04 --11.80)indicate that the Pinghejie granitic pluton was derived from the remelting of Paleoproterozoic crust. The paper concluded that the tin mineralization in the Songshan deposit occurred at the end of Late Cretaceous. It is another important metallogenic period in the Lancangjiang tin belt, which may be related to the subduction of the NeoTethys oceanic crust. The tin miner-alization can not only occur in the magmatic arc, but also in the hinterland behind the magmatic arc.
WOS关键词A-TYPE GRANITES ; GEOCHEMICAL CHARACTERISTICS ; SOUTHERN LANCANGJIANG ; WESTERN YUNNAN ; ISOTOPIC COMPOSITIONS ; TECTONIC SIGNIFICANCE ; TENGCHONG BLOCK ; SW CHINA ; GEOCHRONOLOGY ; MAGMATISM
资助项目Second Tibetan Plateau Scientific Expedition and Research Program ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; [2019QZKK0201] ; [IGGCAS-201902]
WOS研究方向Geology ; Mineralogy ; Mining & Mineral Processing
语种英语
WOS记录号WOS:000892867100002
出版者ELSEVIER
资助机构Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Second Tibetan Plateau Scientific Expedition and Research Program ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS ; Key Research Program of the Institute of Ge-ology & Geophysics, CAS
源URL[http://ir.iggcas.ac.cn/handle/132A11/107658]  
专题地质与地球物理研究所_中国科学院矿产资源研究重点实验室
通讯作者Li, Xiaofeng
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Guilin Univ Technol, Coll Earth Sci, Guilin 541004, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Yiting,Li, Xiaofeng,Li, Zufu. The fractures-controlled tin mineralization at the end of Late Cretaceous in the Songshan deposit, southwestern China: Constraints from U-Pb dating of zircon, garnet, and cassiterite[J]. ORE GEOLOGY REVIEWS,2022,150:21.
APA Zhu, Yiting,Li, Xiaofeng,&Li, Zufu.(2022).The fractures-controlled tin mineralization at the end of Late Cretaceous in the Songshan deposit, southwestern China: Constraints from U-Pb dating of zircon, garnet, and cassiterite.ORE GEOLOGY REVIEWS,150,21.
MLA Zhu, Yiting,et al."The fractures-controlled tin mineralization at the end of Late Cretaceous in the Songshan deposit, southwestern China: Constraints from U-Pb dating of zircon, garnet, and cassiterite".ORE GEOLOGY REVIEWS 150(2022):21.

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来源：地质与地球物理研究所

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