The formation and evolution of Songnen massif hasalways been a hot topic, and the presence of Precambrianbasement on the Songnen massif is still controversial： （1）Lacking of Pre-Paleozoic dating results, the Precam...The formation and evolution of Songnen massif hasalways been a hot topic, and the presence of Precambrianbasement on the Songnen massif is still controversial： （1）Lacking of Pre-Paleozoic dating results, the Precambrianbasement on Songnen massif does not extend largelyaccording to the isotopic dating results of core frombasement, （2） the existence of gneiss from deep drill holesof the Songliao Basin makes some researchers considerthat Precambrian basement should exist on the Songnenmassif and another proof is that the geophysical featuresof gravity.展开更多
Objective The North China Craton(NCC)is one of the oldest cratons in the world.The accretionary belt at its northern margin has been the focus of scholars both at home and abroad(Zhu Junbing and Ren Jishun,2017).In re...Objective The North China Craton(NCC)is one of the oldest cratons in the world.The accretionary belt at its northern margin has been the focus of scholars both at home and abroad(Zhu Junbing and Ren Jishun,2017).In recent years,a series of Late Paleozoic–Mesozoic intrusions trending E–W have been discovered within the northern margin of the NCC,forming a magmatic belt.The展开更多
基金financially supported by China Geological Survey (Grants12120113053900 and DD20160047)
文摘The formation and evolution of Songnen massif hasalways been a hot topic, and the presence of Precambrianbasement on the Songnen massif is still controversial： （1）Lacking of Pre-Paleozoic dating results, the Precambrianbasement on Songnen massif does not extend largelyaccording to the isotopic dating results of core frombasement, （2） the existence of gneiss from deep drill holesof the Songliao Basin makes some researchers considerthat Precambrian basement should exist on the Songnenmassif and another proof is that the geophysical featuresof gravity.
基金financially supported by the China Geological Survey(grants No.DD20160048-05,12120113053400 and 12120114055501)
文摘Objective The North China Craton(NCC)is one of the oldest cratons in the world.The accretionary belt at its northern margin has been the focus of scholars both at home and abroad(Zhu Junbing and Ren Jishun,2017).In recent years,a series of Late Paleozoic–Mesozoic intrusions trending E–W have been discovered within the northern margin of the NCC,forming a magmatic belt.The
