新疆和田县火烧云铅锌矿床综合信息找矿模式

Comprehensive Information Prospecting Model of Huoshaoyun Lead-Zinc Deposit in Hetian County,Xinjiang

和田县火烧云铅锌矿产于喀拉昆仑-三江成矿省之林济塘Pb,Zn,Cu,Au,Mo,石膏矿带(Ⅳ级)内,赋矿地层为中侏罗统龙山组。矿区位于1∶5万水系沉积物测量圈定的Pb,Zn,Cd,Mo,As,Sb,Ag综合异常内,其中Pb,Zn,Cd元素异常套合最好,与矿体基本对应,特别是Pb,Zn异常中心与矿体位置完全对应。1∶5万地面高精度磁测矿区表现为宽缓负磁场,异常幅值约10 nT。CSAMT测量和重力测量铅锌矿体部位显示低阻、高重力异常。在综合分析矿床成矿地质条件、地球化学异常、地球物理异常、遥感信息特征的基础上,建立该矿床地质-地球物理-地球化学-遥感找矿模式,以期为火烧云式铅锌矿床的发现与评价提供参考。

Huoshaoyun lead-zinc deposit in Hetian County is located in Linjitang Pb,Zn,Cu,Au,Mo,gypsum ore belt(level IV)of Kalakunlun-Sanjiang metallogenic province.The mining area is located in the Pb,Zn,Cd,Mo,As,Sb and Ag comprehensive anomalies delineated by 1∶50000 stream sediment survey.Among them,Pb,Zn and Cd element anomalies are the best,which basically correspond to the ore body,especially the Pb and Zn anomaly center is completely corresponding to the ore body position.The 1∶50000 ground high precision magnetic survey mining area shows a wide and gentle negative magnetic field with an abnormal amplitude of about 10 nT.CSAMT measurement and gravity measurement lead-zinc ore body parts show low resistance and high gravity anomalies.Based on the comprehensive analysis of ore-forming geological conditions,geochemical anomalies,geophysical anomalies and remote sensing informa-tion characteristics,the geological-geophysical-geochemical-remote sensing prospecting model of the deposit is established to provide a reference for the discovery and evaluation of Huoshaoyun lead-zinc deposit.