The Age of the Original Silurian Badangshan Formation and its Ductile Deformation in the Northern Margin of North China Craton: New Evidence from Zircon SHRIMP U-Pb Ages

Objective Many previous researches have documented the tectonic evolution of the northern margin of North China Craton.However,whether the age of original Silurian Badangshan Formation in the study area belongs to the Archean,Silurian or Devonian remains controversial,and the ductile deformation time of this formation also lack

Objective Many previous researches have documented the tectonic evolution of the northern margin of North China Craton. However, whether the age of original Silurian Badangshan Formation in the study area belongs to the Archean, Silurian or Devonian remains controversial, and the ductile deformation time of this formation also lack of chronological study. This work focused on the composition of the rocks in the original Silurian Badangshan Formation of the Jiefangyingzi and Dachaoyanggou area of Chifeng, and the U-Pb dating of rhyolite and late intrusive rocks, and then discussed the age of ductile deformation in order to provide new basic information for the structural evolution of this area.