School of Earth Sciences and Resources;
China University of Geosciences;
Beijing 100083;
China;
State Key Lab of Geological Processes and Mineral Resources;
China University of Geosciences;
Beijing 100083;
China;
Department of Earth Sciences;
Dalhousie University;
Halifax;
B3H 4R2;
Canada;
Western North China craton; Trans-North China Orogen; Bouguer gravity anomaly; Crustal density structure; Gravitational potential energy;