陕西省勉县瓦子坪地区铅锌多金属矿成矿地质条件及找矿前景分析

勉县瓦子坪地区铅锌多金属矿取得重大找矿突破,铅锌矿带位于印支期光头山岩体边部，矿带规模大，矿石品位高，属于典型的变质热液型铅锌多金属矿床。近年来在甘肃围绕印支期岩体先后发现了厂坝铅锌矿床、李坝金矿床、金山金矿床、温泉钼矿床等几十处大中型矿床，而陕西围绕印支期岩体找矿一直未能实现较大突破，本次瓦子坪地区铅锌多金属矿取得重大找矿突破成为陕西围绕印支期岩体找矿新亮点。本文笔者通过对区内地层、构造、岩浆活动、地球化学特征、矿体特征的综合分析，并类比典型矿床，提出层位岩性、地质构造、热液蚀变及化探异常等找矿标志，初步认为本区具有寻找大型铅锌多金属矿床的基本条件。

Analysis on metallogenic geological conditions and prospecting prospects of Lead-Zinc polymetallic deposits in Waziping area of Mian County, Shaanxi Province

The Lead-Zinc polymetallic deposit in Waziping area of Mian county has made a major breakthrough in prospecting. The Lead-Zinc metallogenic belt is located at the edge of Guangtou Mountain magmatic body aged the Indosinian period. The metallogenic belt is large in scale and high in ore grade, belonging to a typical metamorphic hydrothermal type of Lead-Zinc polymetallic deposit.In recent years, several dozen large and medium-sized deposits including Changba Lead-Zinc deposit, Liba gold deposit, Jinshan gold deposit, and Wenquan molybdenum deposit have been discovered around the Indosinian magmatic body in Gansu province. However, in Shaanxi Province, there has not been a major breakthrough achieved in prospecting around the Indosinian magmatic body. This time, the major breakthrough in prospecting for Lead-Zinc polymetallic deposits in Waziping area has become a new highlight in prospecting around the Indosinian magmatic body in Shaanxi Province. Based on the comprehensive analysis of strata, structures, magmatic activities, geochemical characteristics and orebody characteristics in the area, and by analogy with typical deposits, we proposes prospecting indicators such as strata lithology, geological structure, hydrothermal alteration and geochemical anomalies. And we preliminarily believe that the area has the basic conditions for searching for large-scale polymetallic Lead-Zinc deposits.