新疆和田县多宝山一带铅锌矿资源潜力评价

POTENTIAL ASSESSMENT OF LEAD-ZINC RESOURCES IN DUOBAOSHAN AREA, HOTIAN COUNTY, XINJIANG

新疆和田县多宝山式构造热液硫化物型铅锌矿是喀喇昆仑地区的重要金属矿产类型,多宝山式铅锌矿位于甜水海地块与神仙湾晚古生代边缘裂陷带结合部位,区域成矿带隶属慕士塔挌—阿克赛钦Fe-Cu-Au-PbZn-Sn-Sb-RM-白云母—宝玉石矿带(Ⅶ-1-①)、林济塘Fe-Cu-Au-Mo-石膏矿带(Ⅷ-1-①);铅锌矿(化)主要赋存于晚白垩世铁隆滩组灰岩段中,矿体分布明显的受断裂构造控制,矿源为含铅锌硫化物的构造热液,矿石类型总体以方铅矿、闪锌矿矿石为主。在系统收集多宝山一带已有成果资料和野外调查的基础上,开展了多宝山式构造热液硫化物型铅锌矿成矿规律的综合研究,以多宝山铅锌矿为典型矿床,利用最新矿产资源潜力评价方法,在研究区内圈定38个最小预测区,其中A类6个,B类14个,C类18个;预测铅锌资源总量1 886.23万吨,其中Zn 1 685.63万吨、Pb 200.60万吨。

Duobaoshan structure hydrothermal sulfide lead-zinc mine in Hotan County of Xinjiang is important metal deposit in West Kunlun area. The Duobaoshan type lead-zinc deposit is located at the junction of the Tianshuihai block and the shenxianwan Late Paleozoic marginal rift zone. The regional metallogenic belt belongs to the Mushitage-Akesaiqin Fe-Cu-Au-Pb-Zn-Sn-Sb-RM-muscovite-gemstone ore belt (Ⅶ-1-①)and linjitang Fe-Cu-Au-Mo-gypsum belt (Ⅷ-1-①). Zinc mineralization mainly occurs in the limestone section of Tielongtan Group of the Late Cretaceous. The distribution of ore bodies is obviously controlled by fault structure. The ore source is structural hydrothermal solution containing lead-zinc sulfide. The ore types are mainly galena and sphalerite. Based on the systematic data collection, field investigation and comprehensive research, thispaper analyzes and evaluates the resource potential of Duobaoshan-type lead-zinc mine in Duobaoshan by using the latest mineral resources potential evaluation method and the Duobaoshan lead-zinc deposit as a typical deposit, and circles 38 minimum prediction areas, including 6 class A,14 class B and 18 class C.Total resource reserves for lead and zinc are estimated to be 18. 862 3 million tons,as the Lead resource is 16.856 3 million tons and the zinc resource is 2. 006 0 million tons.