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SHRIMP zircon U-Pb ages and Hf isotopic compositions of Zhangshiying intrusive complex in the southern margin of the North China Craton and their geological implications
Author(s): XIANG Junfeng, ZHAO Haijie, LI Yongfeng, CHENG Yanbo, GAO Yalong, HOU Kejun, DONG Chunyan, LI Xiangqian
Pages: 871-
887
Year: 2010
Issue:
3
Journal: Acta Petrologica Sinica
Keyword: 华北地台南缘; 张士英岩体; 锆石U-Pb测年; 锆石Hf同位素; 白垩纪; 太平洋板块;
Abstract: 张士英岩体位于华北地台南缘,岩石类型包括钾长花岗岩、似斑状花岗岩和石英斑岩脉,其中只在钾长花岗岩中发育有暗色岩石包体,在包体和寄主岩中发育反映岩浆混合作用的岩石结构.钾长花岗岩、似斑状花岗岩和石英斑岩脉的SHRIMP锆石U-Pb年龄分别为107.3±2.4Ma、106.7±2.5Ma和101±3Ma.锆石Hf同位素分析结果显示,钾长花岗岩的锆石εHf(t)为-15.96~-20.80,单阶段模式年...
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