Late Paleozoic magmatism in South China:Oceanic subduction or intracontinental orogeny?
  • 【摘要】

    A gneissic granite with an U-Pb age of 313±4 Ma was found in northeastern Fujian Province,South China.It is an S-type granite characterized by high K2O,Al2O3 and low SiO2,Na2O contents with high A/CNK... 展开>>A gneissic granite with an U-Pb age of 313±4 Ma was found in northeastern Fujian Province,South China.It is an S-type granite characterized by high K2O,Al2O3 and low SiO2,Na2O contents with high A/CNK ratio of 1.22 for the whole rock.Zircons with stubby morphology from the gneissic granite yield 206 Pb/238 U ages ranging from 326 to 301 Ma with a weighted average age of 313±4 Ma,and negative εHf(t) values from -8.35 to -1.74 with Hf model ages (TCDM) of 1.43 to 1.84 Ga.This S-type granite probably originate... 收起<<

  • 【作者】

    YU JinHai  LIU Qian  HU XiuMian  WANG Qin  O'REILLY Suzanne Y 

  • 【作者单位】

    State Key Laboratory for Mineral Deposits Research/School of Earth Sciences and Engineering/Nanjing University/GEMOC ARC National Key Centre/Department of Earth and Planetary Sciences/Macquarie University

  • 【刊期】

    科学通报(英文版) SCI 2013年7期

  • 【关键词】

    S-type granite  zircon U-Pb age  zircon Hf isotope  late Paleozoic orogeny  South China 

  • 【基金项目】

    supported by the National Basic Research Program of China(2012CB416701) the National Natural Science Foundation of China(40972127) the State Key Laboratory for Mineral Deposits Research(Nanjing University)(ZZKT-201106)