东准噶尔汉人沟钨多金属矿床成矿分带及找矿方向探讨

东准噶尔汉人沟钨多金属矿床具有铅、锌、金、钨等多元素成矿特征,发育硫化物型、石英脉型等矿化类型,不同部位形成不同的矿化类型和矿产。通过对矿体赋存部位、矿化类型分布及矿物和元素组合等特征的对比分析,研究矿床在水平和垂向上的矿化分带,对矿区及区域钨、铅、锌多金属矿找矿突破具有重要意义。该矿床水平方向上以辉绿岩为中心,代表中-低温的硫化物型矿化和铅锌矿分布于代表中高温白钨矿化的两侧;垂向上铅矿-锌矿-白钨矿-黑钨矿四个分带明显,形成地表到深部从中低温到高温的成矿分带特征。矿床水平和垂向分带明显,并且随着高程的降低,成矿中心向北东方向偏移。目前勘查深度相当于"五层楼式"钨矿的远端成矿部位,深部还具有较大的找矿潜力,找矿将取得较大突破。

Metallogenic zoning and prospecting direction of the Hanrengou tungsten polymetallic deposit in eastern Junggar

The Hanrengou tungsten polymetallic deposit in eastern Junggar has the metallogenic characteristics of lead, zinc, gold, tungsten and other elements, and sulfide, quartz vein and other mineralization types which formed at different positions. By analyzing the features of the favorable occurrence of the ore body, the distribution of mineralization types and the combination of minerals and elements, this work studies the horizontal and vertical metallogenic zoning of the deposit, which has great significance for prospecting breakthrough in the mining area and surroundings. Centered at the diabase in horizontal direction, medium-low temperature sulphide mineralization and lead-zinc ore are distributed on either side of the medium-high temperature scheelite mineralization. In vertical direction, there exist four kinds of ores: lead, zinc, scheelite and wolframite, forming a medium-low temperature to high temperature metallogenic zone from the surface to the depth. The center of the polymetallic deposit migrates northeastward with decrease in altitude. At present, the exploration depth corresponds to the distal metallogenic site of the "five-floor-like" tungsten. The deposit has a large ore-prospecting potential at depth. It is expected that a big breakthrough of ore search will be made in this area.