福建南平东门钼矿床地质特征及成因分析

Analysis of Geological Characteristics and Genesis of Dongmen Molybdenum Deposite in Nanping City, Fujian Province

南平东门钼矿床已探(查)明资源量为中型规模。该矿床位于北东向政和—大埔断裂带和北东东向宁化—南平断裂带交会处南侧闽中裂谷成矿亚带的中部。区内钼矿体呈脉状、透镜状,储存于北东向断层(裂隙带)中及正长花岗岩和斑状细粒花岗岩的内外接触带,通过对矿区钼矿成矿地质特征分析,认为该矿床成因类型属高中温热液交代充填型钼矿床,其外围找矿潜力仍较大。

Dongmen molybdenum deposite in Nanping city has been explored ming resources for medium scale. The deposit is located in the middle of the central Fujian rift mineral formation sub-zone at the south side of the intersection of the North-East Zhenghe-DaPu fault zone and the North-east-east Ninghua-Nanping fault zone. The molybdenum ore body in the area is vein and lens, stored in the north-east fault and the inner and outer contact zones of the syenzogranite and porphyritic fine-grained granites. Based on the analysis of the metallogenic geological characteristics of the molybdenum deposit, it is considered that the deposit belongs to the high medium hydrothermal metasomatic filling type molybdenum deposit, and its outer prospecting potential is still large.