| Citation: |
Xiang-yuan Yue, Qian Zhang, Jun-jun Zhang, Wei Zhang, Jing Zhang, Zhi-quan Jia, Li-ping Luo. Cassiterite U-Pb dating of the Yelonggou pegmatite-type lithium deposit in western Sichuan and its metallogenic age constraints[J]. China Geology, 2024, 7(1): 153-156. doi: 10.31035/cg2023047
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Cassiterite U-Pb dating of the Yelonggou pegmatite-type lithium deposit in western Sichuan and its metallogenic age constraints
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Xiang-yuan Yue, Qian Zhang, Jun-jun Zhang, Wei Zhang, Jing Zhang, Zhi-quan Jia, Li-ping Luo. Cassiterite U-Pb dating of the Yelonggou pegmatite-type lithium deposit in western Sichuan and its metallogenic age constraints[J]. China Geology, 2024, 7(1): 153-156. doi: 10.31035/cg2023047
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Figure 1.
(a)–Geotectonic map of the Yelonggou Li deposit; (b)–Geologic map of the Ke’eryin district; (c)–Geologic map of the Yelonggou mining area. Abbreviations: NCB–North China Block; NQLT–North Qilian Thrust; EKL-QDM-QL–East Kunlun-Qaidam-Qilian terrane; QT–Qiangtang terrane; LMST–Longmenshan thrust; YZB–Yangtze block; EKL-ANMQS–East Kunlun Anyemaqen suture zone; JSSZ–Jinshajiang-Ailaoshan suture zone; LS–Lhasa block; BGL-NJSZ–Bangong Lake-Nujiang suture zone; GZLTSZ–Ganzi-Litang suture zone; YDSZ–Yidun island arc suture zone; ZY–Zhongzan block.
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Figure 2.
(a–b) Hand-specimen photos and (c–d) photomicrographs (crossed-polar) of the pegmatite and spodumene ore; (e) Cathodoluminescence (CL) and (f) back-scattered electron (BSE) images of cassiterite; (g) Cassiterite U-Pb concordia plot for the Yelonggou Li ore-bearing pegmatite dyke. Abbreviations: Qtz–quartz; Ms–muscovite; Ab–albite; Spd–spodumene.