In the north and the east parts, Paleoproterozoic rifting developed well,and then Mesoproterozoic volcanism and weak magmatism overprinted on it.

• 西南段以新太古代花岗岩-绿岩带的地质事件为主,并叠加较为发育的中生代岩浆活动,成矿以金为主,其次为铜。