Ore-bearing property of ophiolite in Daban-Dacha area, North Qilian Mts.

The mineral resources related to ophiolite in Daban-Dacha area of North Qilian Mts.,may be divided into the following two series of mineralization: (1) Syngenetic series of mineralization in the ophiolite,i.e.mineral resources assemblage formed along with forming process of the ophiolite suit,magmatogenic chromite ore related to the metamorphic peridotite and hydrothermal massive sulfide copper ore at seafloor was known to us.(2) Epigenetic series of mineralization in the ophiolite,i.e.mineral resources assemblage recom posed after forming process of the ophiolite suit,altered rock type copperore and silver ore in fracture zone was known to us.