浅析新疆小加山钼钨矿床水工环地质特征

Geological characteristics of the hydraulic ring in the Xiao Jia Shan Mo Mo deposit, Xinjiang

巴里坤小加山的钼钨矿,是新疆哈密巴里坤县近年来发现的一中型斑岩型铜矿,之前已有哈密东戈壁超大型和白山大型斑岩型钼矿床于区内被发现。天山-兴安区北天山分区博格达山小区是区内的地层分区,泥盆系地层在区内广泛发育,内生金属矿产多分布于泥盆系和石炭系中。古生界泥盆系大南湖组凝灰质粉砂岩和凝灰岩以及安山岩是该矿矿床的主要赋矿地层及其岩性。总体呈现上部钨矿下部钼矿的分布特点,钨矿多分布在浅部的地表位置上,增加探矿困难。且钼钨矿床相互共生,并呈现分离状态,矿区范围内具有非常恶劣的自然环境条件,降水量不多,地表区域无水体存在,矿体及其周围的岩石多比较坚硬,矿床开采受外部自然环境影响较少。文中主要对新疆小加山钼钨矿床水工环地质特征进行分析,旨在对相关工作的开展提供参考。

The Xiaojiashan molybdenum-tungsten deposit in Balikun is a medium-sized porphyry copper deposit discovered in recent years in Balikun County, Hami, Xinjiang. The Bogda Mountain District in the northern Tianshan Xingan area is a stratigraphic division of the area. The Devonian strata are widely developed in the area, and the Carboniferous and Quaternary strata are also developed. The endogenetic metallic minerals are mostly distributed in Devonian and Carboniferous systems. The tuffaceous siltstone, tuff and andesite of the Devonian Dananhu Formation are the main orehosting strata and lithology of the deposit. Generally speaking, the distribution of molybdenum deposits in the lower part of the upper tungsten deposit is characterized by the distribution of tungsten deposits in the shallow part of the surface position,but the molybdenum deposits are mostly hidden in the middle and deep part of the underground, increasing the difficulty of prospecting. The molybdenum-tungsten deposits coexist with each other and show a state of separation. Within the mining area, there are very bad natural environment conditions, less precipitation, no water body in the surface area, morehard ore bodies and surrounding rocks, and less natural environment impact on the mining of the deposits. In this paper, the hydrogeological characteristics of Xiaojiashan molybdenum-tungsten deposit in Xinjiang are analyzed in order to provide reference for related work.