金寨沙坪沟钼矿床外围构造蚀变岩型铅锌矿地质特征与找矿潜力分析

Geological features and analysis of ore-prospecting potential of structural altered rock type Pb-Zn ore deposit in the periphery of the Shapinggou molybdenum ore deposit of Jinzhai

沙坪沟钼矿位于安徽省金寨县西南部,是大别山东段新发现的一个特大型隐伏斑岩钼矿床,是我国乃至世界上最大的单体钼矿床。近几年,通过沙坪沟整装勘查项目实施,在其外围发现了构造蚀变岩型铅锌矿,该类铅锌矿明显受近东西向构造破碎带控制,其成因与燕山晚期中酸性小岩体有关,具有走向、倾向延伸大、品位富等特点,找矿前景良好,是进一步找矿的重要方向。

Situated in the southwestern part of Jinzhai County of Anhui Province, the Shapinggou molybdenum ore deposit is a very large concealed porphyry molybdenum ore deposit found in the eastern part of the Dabie Mt., and also the biggest single molybdenum ore body in China and even the world. In recent years, package exploration was implemented in Shapinggou, leading to discovery of a structural altered rock type Pb-Zn ore deposit in its periphery, which is evidently controlled by a structural fracture zone that trends west-east. Genetically, the ore body is related to late Yanshanian intermediate-acid small rockrnasses, extends long along trend and dip and has high grade, showing good oreprospecting potential and being the major target for further exploration.