| Sansegou Pb-Zn deposit is located in the middle of east Kunlun mountains in Qinghai province, between Dagelegou and Wulonggou. It has advantageous mineralization condition and good prospecting potential.The stratum in this area is simple, but the magma activity is fierceness. The fracture structure developed well. Ore bodies come from the inner and outside contact zone of Variscan period Acidic intrusive rocks, which is intrude into Paleoproterozoic deep metamorphic rock series.NE fracture groups, NNE fracture groups and NNW fracture groups is the main ore-control and ore-bearing structure. Mineralization is comprehensive control by intrusive rocks and fracture. In the mine lead-zinc mineralization take on belt distribution and piece concentration, and it is divided into Ⅰ-Ⅶ,Ⅸ(blind ore belt) eight ore belts,14ore bodies and5mineralized bodies. According to the nature and scale of fracture structures, ore bodies form and scale, in general it is divided into three types: regular vein ore body controlled by shear fracture, lenticular ore body controlled by the tensile fracture, and cystic ore body controlled by local crack.Sansegou Pb-Zn deposit mineralization is the structure-magma activity product after Variscan period, ore deposits formation mainly experienced fracture formation and hydrothermal filling stage, and it is middle-temperature liquid filling vein type polymetallic ore deposit which is comprehensive controlled by fracture and intrusive rocks after magmatic activity period. Based on these, five Pb-Zn deposit prospecting targets are delineated in this area. It provides reasonable basis for the Sansegou Pb-Zn deposit systematic research and further ore-prospecting work in the future. |
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