Decratonic gold deposits in the Jiaodong Peninsula, eastern North China Craton

  • Date

    November 10,2016

  • Venue


  • Time


  • Speaker

    Prof. Hongrui Fan Institute of Geology and Geophysics Chinese Academy of Sciences

The world-class gold camps and deposits in the Jiaodong Peninsula, eastern North China Craton
(NCC), show obviously different features from the typical orogenic gold deposits. Their diversities
reflect complex interplay of physical and chemical processes at a depositional trap. Gold deposition in
the Jiaodong Peninsula took place during a short period, and formed in the same tectonic-geological
setting with the same type of ore fluids. This huge gold mineralization event coincided with tectonic
reactivation or craton destruction of the North China Craton, as marked by asthenosphere upwelling,
voluminous igneous rocks, and high crustal heat flow, which may have provided sufficient heat
energy and fluid input required for the formation of the gold deposits. A genetic relation has been
established between the formation of Au deposits and decratonic magmatic and hydrothermal
activities, and a new model for “Decratonic Gold Deposits” has been proposed.