There are large-area Variscan Indo-Sinian granites in the central part of Jilin area forest region of the northern part Jilin Province . It is fettered by traditional metallogenic theory this area is also called as a Virgin soil on the nonferrous metal exploration .

在吉林省的吉林地区中部和北部大面积森林覆盖区，分布着大面积华力西期、印支期花岗岩类，受传统成矿理论的束缚，这一地区成为有色 金属矿产勘查的“ 处女地”。