摘要
Based on the geological structure and the aero-geophysical features of the Greater Hinggan Mountains,the authors interpreted the aeromagnetic data,and on such a basis,discovered the linear-circular structure and the volcanic rock basement.The relationships between the linear-circular structure,intrusive rock,Permian strata and gravity-magnetic features of polymetallic ore deposits were summarized.This paper aimed at providing references for polymetallic mineral exploration in this area.