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ZHU Guo-ren, GUAN Jun-lei, WANG Guo-zhi, ZHENG Lai-lin, LONG Teng, LU Xuyang, Xu Peng. The granites from the Huangcaoling region, Luchun, Yunnan: SHRIMP zircon U-Pb chronology and geological implications[J]. Sedimentary Geology and Tethyan Geology, 2016, 36(4): 77-84.
Citation: ZHU Guo-ren, GUAN Jun-lei, WANG Guo-zhi, ZHENG Lai-lin, LONG Teng, LU Xuyang, Xu Peng. The granites from the Huangcaoling region, Luchun, Yunnan: SHRIMP zircon U-Pb chronology and geological implications[J]. Sedimentary Geology and Tethyan Geology, 2016, 36(4): 77-84.
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The granites from the Huangcaoling region, Luchun, Yunnan: SHRIMP zircon U-Pb chronology and geological implications

  • 1. College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, Sichuan, China;

  • 2. Chengdu Center, China Geological Survey, Chengdu 610081, Sichuan, China;

  • 3. State Key Laboratory of Oil and Gas Resources Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, Sichuan, China

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  • Received Date: December 13, 2015
  • Revised Date: January 20, 2016
  • Published Date: December 29, 2016
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    • Abstract
  • The present paper deals with the SHRIMP zircon U-Pb chronology, major and trace element geochemistry, and obtain a SHRIMP zircon U-Pb age of 249.8±4.3 Ma for the granites from the Huangcaoling region, Luchun, Yunnan. Geochemically, the granites in the study area display normal anomalies of K, Rb, U, Th and Pb, and negative anomalies of Nb, Ta, Ti, Hf and Eu, indicating the peraluminous, high-K cala-alkaline S-type granites formed in the island-arc tectonic setting. During the Early Triassic, there once occurred the westward subduction of the Ailaoshan Ocean, and the transition from the mature island arc to the continentcontinent collision in the Luchun region, Yunnan.
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