Triassic volcanism along the eastern margin of the Xing'an Massif, NE China: Constraints on the spatial–temporal extent of the Mongol–Okhotsk tectonic regime
作者: Yu LiWen-Liang XuFeng WangFu-Ping PeiJie TangShuo Zhao
作者单位: 1College of Earth Sciences, Jilin University, Changchun 130061, China
2State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
刊名: Gondwana Research, 2017, Vol.48 , pp.205-223
来源数据库: Elsevier Journal
DOI: 10.1016/j.gr.2017.05.002
关键词: Xing'an MassifTriassic volcanismGeochronologyGeochemistryMongol–Okhotsk tectonic regime
英文摘要: Abstract(#br)We present new zircon U–Pb–Hf and whole-rock geochemical data for volcanic rocks along the eastern margin of the Xing'an Massif of NE China in order to further our understanding of the history of subduction towards the SE and the spatial extent of the Mongol–Okhotsk tectonic regime. Zircon U–Pb dating indicates that the Triassic volcanism in the Xing'an Massif occurred in two stages during the Middle (ca. 242Ma) and Late (ca. 223–228Ma) Triassic. Middle Triassic basaltic andesites in the Heihe area have an affinity to arc-type volcanic rocks. The zircon ε Hf (t) values (+8.5 to +12.7) suggest that the primary magma was generated by the partial melting of a relatively depleted mantle wedge that had...
全文获取路径: Elsevier  (合作)
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影响因子:7.396 (2012)

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关键词翻译
关键词翻译
  • tectonic 构造的
  • Triassic 三叠纪
  • volcanism 火山酌
  • regime 状况
  • spatial 空间的
  • temporal 现世的
  • eastern 东方的
  • margin 边限
  • extent 范围
  • along 沿着