Bashenerxi　granites　of　the　western　sector　of　Qimantage　mountains　consist　of　two　rock　types　of　adamellite　and　moyite,　magmatic　sequence　includes　six　units　from　early　to　late,　its　age　is　about　458-432　Ma;　tectonic　discrimination　shows　Bashenerxi　granites　formed　in　the　post-orogenic　tectonic　setting;　through　discussions　that　Ordovician-early　Silurian　A2　(PA)　-type　granite　of　metaluminous-peraluminous　in　the　south　side　of　Altun　fault　is　the　focus　of　the　exploration　target　of　W-Sn　deposit　in.