| This article has integrated the metallogenic background information of Bajiazi area, analysised the geological characteristics of the deposit in study area, studid the genesis and ore controlling factors of the deposit, summarized the metallogenic mechanism and metallogenic model of the study area.There is a close relationship between the output of molybdenum deposit, the distribution of granite,and the fault structure in study area,the molybdenum deposit of the area are mainly hosted near the inner contact zone and fault zone between granite-porphyry and other rock mass,the external contact zone took second place. The ore-bearing rock body are mainly granite-porphyry, the major ore minerals are molybdenite,because of the porphyry molybdenum deposit. Porphyry granite is the main mineral sources of molybdenum deposit, potassium feldspar is the main carrier mineral. Ore-forming fluid comes from the mixture of the magmatic water and meteoric water.This region is the ore-bearing intrusive mass that controlled by the magmatism during late Yanshanian period.The formation of the molybdenum mine is closely related to the magmatism during Yanshanian period, mineralization is strictly controlled by the internal structural fissure of intrusive rocks and contact zone structure, mineralization is a relatively continuous process that completed by multistage ascend and emplacement and mineralization superposition of magma. According to the genesis of ore deposits, metallogenic conditions, mineralization regularity,and the summarized prospecting indicator,we have circled3prospecting target area:Ⅰ.Dongjiatun molybdenum mine target area, II.Liujiazi molybdenum mine target area,Ⅲ.Northern Lujiao molybdenum mine target area. |
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