西藏措勤县德能铜多金属矿床地质特征及找矿方向

Geological Characteristics and Prospecting Direction of the Deneng Copper-Polymetallic Deposit in Coqen County,Tibet,China

德能铜多金属矿是在1/5万隆格尔-措麦地区矿调中发现的,有6条铜矿体,并伴生有铅、锌、金、银等多种有益组分。成矿地质条件较好,矿体主要赋存于岩体外接触带及构造破碎带中,其中Cu4矿体规模最大,经深部钻探工程及地表槽探验证,矿体品位和厚度沿走向和倾向变化系数较小,伴生组分较多,铜多金属矿床的成因类型为构造蚀变岩型,其形成与岩浆活动关系密切,空间分布严格受岩浆岩和断裂的控制。矿区激电异常和化探异常显示矿区是寻找铜、铅、锌多金属矿的有利部位,找矿前景良好。

The Deneng Copper-polymetallic deposit is discovered with the Longgeer-Cuomian 1：50 000 minerals survey. There are six bodies of copper ore achieving production-grade with useful components such as Pb, Zn, Au and Ag etc. With good ore-forming geological condition, ore bodies mainly occur in outside of the contact zone and tectonic fracture zone. Cu4 ore body is the largest one. Basing on deep drilling and surface trenching data, the variation coefficient of ore grade and thickness along the ore strike and tendency is small. This copper polymetallic deposit belongs to the structural-altered-rock type. The formation is closely related to the magmatic activity. Spatial distribution is controlled by magmatic and fracture. Induced polarization anomalies and geochemical anomalies show that this deposit area is the prospecting favorable place of the copper, lead and zinc polymetallic deposit.