GEOLOGICAL CHARACTERISTICS AND PROSPECTING TARGET OF THE PUQIONGLANG IRON DEPOSIT, TIBET

On the basis of the mineral resource survey of the Puqionglang in LinZhou of Tibet, this paper deals with the geological settings, geological characteristics, geophysical characteristics, ore genesis and prospecting perspective of Puqionglang iron deposit. The study results show that the early Himalayan Period was an important metallogenic epoch for rich iron deposits in the Gangdise arc orogen of tibet. The Puqionglang iron deposit is located in the skarn and skarnization limestone in contacting belt of the Jubuzhari granite body in the early Himalayan Period, and is a postmagmatic meso. The ore bodies are mainly in veins, lenses and layered in marble. The ore bodies is strictly controlled by carbonate rock of the Permian Luobadui and mengla formation and the E-W orientation fracture zones in stratum layer. The host rocks are mainly skarn and skarnization limestone of the permian luobadui and mengla formation. Ore minerals are mainly magnetite, chalcopyrite and azurite etc.. Vein minerals are mainly in quartz, Calcite, diopside and garnet etc.. The potential resource quantity of Puqionglang iron deposit is huge and proposed prospect searching for the same type iron deposit in the outside, too. Based on the geological features, ore-controlling factors, prospecting criteria and target for iron deposit in this region are discussed. The discovery of Puqionglang iron deposit initiate a new idea and a important foundation for prospecting for the type of iron deposit in the Gangdise Arc orogen of tibet.