豫西宽坪银多金属矿床地质特征及矿床成因探讨

豫西宽坪银多金属矿床位于华北地台南缘熊耳山变质核杂岩中部,成矿条件优越。矿体赋存于太华群杨寺沟岩组,其形态、规模、产状严格受NNE、NEE向构造蚀变带控制。结合成矿地质背景,研究分析了宽坪银多金属矿地质特征、控矿因素和找矿标志,并对矿床成因进行了探讨,认为矿床成因类型为构造蚀变岩型银多金属矿。对该地区银多金属矿的地质特征和成因研究,有利于拓宽崤山地区银多金属矿找矿思路,为该区及周边实现找矿突破提供借鉴。

Geological characteristics and genesis of Kuanping Ag polymetallic deposit in the western Henan Province

The Kuanping Ag polymetallic deposit is located in the southern margin of the North China block,Middle in the Xiongershan metamorphic core complex. Ore bodies occur in The Yangsi Gulu Formation of Taihua Group, Its morphology, scale and occurrence are strictly controlled by NNE and NEE tectonic alteration zones. Combined with regional geological setting, investigated the geological features of KuanpingAg polymetallic desposit, the ore-controlling factors and ore-searching criteria,and discussed the genesis of deposits. It is considered that the type of the depositis are atectono-alteration ore Ag polymetallic deposit. The study of the metallogenic characteristics and prospecting indicators of the Kuanping Ag polymetallic deposit in this area is helpful to promoting the prospecting ideas of in Ag polymetallic deposit Xiaoshan area,and provides reference for the breakthrough of ore prospecting in this area and its surrounding areas.