Analysis On The Structural Features And Mineralization In Muji Village Copper (Molybdenum) Deposit,Hebei Province

The Muji village copper (molybdenum) deposit of Hebei Province is located in YangJia Zhuang of Bao Ding, it is a large copper (molybdenum) deposit with gold and silvercomposition. The deposit is located in the northwest edge of Fuping mantle branch, in theWulong ditch-yellow fracture. The mineralization involvement under the control of dioriterock in the rift basins associated fracture tectonic system and a strong wall rock alterationzone.There are systematic study about the geology of the Taihang Mountain had alreadybeen completed。Based on collecting and analyzing the previous data, this article conductedthe detailed field investigation on the mining area。Thereby obtained first-hand informationand data through the geology survey、 collecting and appraisal of the rock sample、isotopetesting。Meanwhile,based on the mantle branch theory，using the analytical methods ofmordern structural Geology，analyze the character and development feature of the chiefconstruction、 the structural characteristic of the metallogenic structural surface, theevolution and feature of the tectonic stress field supplemented by joints。On the basis ofstructural analysis, expound the mineralization of tectonic activity combined with rockidentification and geochemistry dates， and then established the more reasonablemineralization model of Muji village deposit。By the analysis of the construction system of copper (molybdenum) ore of the Mujivillage, we have the following understanding:1）The main mineralization geological body of Muji village ore field is dioriteporphyrite。Fuping mantle branch peripheral demolition is the main mine mineralization.2）In the ore field of Muji village, the NNE faults are most developed, among that, F4fracture is the major boundary fault, and is the main ore-controlling fault.3） During the early Yanshan movement, the Muji village ore fields ispressure-sheartectonic and produce a series of NNE compressive shear fracture, while inthe middle of the Yanshan movement, it is tenso. When time come to late Yanshanmovement, the strong uplifting of tectonic make the Muji village ore field upliftcorrespondingly. And formed the rift basin, at the same time uplifted the copper(molybdenum) deposit to shallow crust.4） The Muji village copper (molybdenum) deposit is theHigh temperaturehydrothermal deposits。The formation material of mineral deposit comes from the deep，the principal part of the hydrothermal fluids is magmatic water,and contain some precipitation.5）Average age of the mineralization is143.82±2.3Ma，the time limit can bedetermined to Yanshan period。...