Chronology and petrogenesis of the Hejiazhuang granitoid pluton and its constraints on the Early Tri

• 作 者: YANG PengTao LIU ShuWen LI Qiu
• 机 构: KeyLaboratoryofOrogenicBeltsandCrustalEvolution,KeyLaboratoryofCrustalDynamics,InstituteofMineralRes
• 出 处: 中国科学：地球科学英文版
• 发表日期: 2014年2期
• 关键词: 岩体成因 早三叠世 构造演化 南秦岭 花岗岩 花岗闪长岩 年表 洋壳俯冲 granodiorites in Hejiazhuang pluton zircon
• 基金项目: supported by National Key Technology R&D Program(Grant Nos.2011BAB04B05,2006BAB01A11),,National Natural Science Foundation of China(Grant Nos.41072143,41072169)

The Hejiazhuang pluton is located in the South Qinling Tectonic Belt(SQTB)in the north side of the Mianxian-Lueyang Suture Zone,and consists dominantly of granodiorites.LA-ICP-MS zircon U-Pb dating and Lu-Hf isotopic analyses reveal that these granodiorit