竹山下铀矿床南西段成矿特征及找矿潜力分析

Characteristics of Uranium Mineralization and Ore Potential Analysis in the Southwestern of Zhushanxia Uranium Deposit

本文综合分析了下庄矿田北部竹山下铀矿床南西段铀成矿条件、铀矿化特征和控矿因素,认为竹山下铀矿床南西段成矿地质条件优越,热液活动强烈,断裂构造发育;硅化带与辉绿岩交汇部位和F2号带及上盘次级带是今后该地段铀矿勘查的主要对象;区内黄铁矿化、硅化、赤铁矿化、萤石化等多种蚀变叠加部位是铀成矿有利部位;断裂构造带存在“上酸下碱”的垂直分带特征表明研究区深部铀成矿条件优越。

This paper comprehensively analyzes the uranium mineralization conditions,uranium mineralization characteristics and ore control factors of the southwest section of Zhushanxia uranium deposit in the north of Xiazhuang ore field.It is considered that the southwest section of Zhushanxia uranium deposit has superior metallogenic geological conditions,strong hydrothermal activity and developed fault structures.The intersection of silicification zone and diabase,F2 zone and hanging wall secondary zone are the main objects of uranium exploration in this area in the future.The superimposition positions of various alterations such as pyritization,silicification,hematite mineralization and fluorization in the area are favorable for uranium mineralization.The vertical zoning characteristics of the fault structural belt,which is"upper acid and lower alkali",indicate that the deep uraniummineralization conditions in the study area are superior.