Metallogenesis of superlarge gold deposits in Jiaodong region and deep processes of subcontinental lithosphere beneath North China Craton in Mesozoic

  • Zhou Xinhua
  • Yang Jinhui
  • Zhang Lianchang
Article
  • 139 Downloads

Abstract

The study of ore-forming chronology indicates that the superlarge gold deposits in the Jiaodong region were formed in 120±10 Ma. Sr-Nd-Pb isotopic compositions from typical gold deposits suggest that ore-forming materials were derived from the multisources, mantle component was partly involved in mineralization, the deep dynamic processes are the major geological background of large-scale metallogenesis in the Jiaodong region in Mesozoic. The deep processes mainly include the effect of post deep-subduction of continental crust of the central orogen belt and the distant effect of subduction of the paleo-Pacific plate underneath the Eurasian continent. However, lithosphere thinning, crust-mantle interaction, crustal extension and formation of large-type ore-controlling structures would be the comprehensive consequences of the above-mentioned geodynamic processes in the region.

Keyworks

superlarge gold deposit lithospheric thinning deep-process in Mesozoic Jiaodong region 

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Copyright information

© Science in China Press 2003

Authors and Affiliations

  • Zhou Xinhua
    • 1
  • Yang Jinhui
    • 1
  • Zhang Lianchang
    • 1
  1. 1.Institute of Geology and GeophysicsChinese Academy of SciencesBeijingChina

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