Record of Permian–Early Triassic continental arc magmatism in the western margin of the Jiamusi Block, NE China: petrogenesis and implications for Paleo-Pacific subduction
作者: Hao YangWenchun GeYu DongJunhui BiZhihui WangZheng JiH. YangW. C. GeY. DongJ. H. BiZ. H. WangZ. Ji
作者单位: 1Jilin University
刊名: International Journal of Earth Sciences, 2017, Vol.106 (6), pp.1919-1942
来源数据库: Springer Nature Journal
DOI: 10.1007/s00531-016-1396-y
关键词: Eastern NE ChinaWestern margin of the Jiamusi BlockPermian–Early Triassic magmatismContinental arcPaleo-Pacific Ocean
原始语种摘要: In this paper, we report zircon U–Pb ages, Hf isotopes and whole-rock geochemical data for the Permian to Early Triassic granitoids from the western margin of the Jiamusi Block (WJB), NE China. The intermediate to felsic (SiO2 = 59.67–74.04 wt%) granitoids belong to calc-alkaline series and are characterized by enrichments in light rare earth elements and large ion lithophile elements with pronounced negative Nb, Ta and Ti anomalies, revealing typical continental magmatic arc geochemical signatures. The zircon U–Pb determinations on the granodiorite, monzogranite, syenogranite and quartz diorite samples yielded ages between ca. 275–245 Ma, which, together with the published coeval intrusive rocks, indicates that Permian to Early Triassic continental arc magmatism occurred...
全文获取路径: Springer Nature  (合作)
影响因子:2.261 (2012)

  • magmatism 岩浆酌
  • subduction 俯冲
  • continental 大陆的
  • Triassic 三叠纪
  • Permian 二叠纪
  • petrogenesis 岩石成因论
  • Pacific 太平洋
  • zircon 锆石
  • margin 边限
  • geochemical 地球化学的