阿尔泰库马苏南一带铅锌多金属矿地质特征及找矿前景  

Geological Characteristics and Prospecting Potential of the Lead-Zinc Polymetallic Deposit in the South Side of Kumasu Area,Altay Mountains

作　　者：王宪伟 陈树民 曹佰迪[2] 

机构地区：[1]河南省有色金属地质矿产局第五地质大队,河南郑州450016 [2]中国地质调查局西安地质调查中心,陕西西安710054

出　　处：《西北地质》2015年第3期299-305,共7页Northwestern Geology

基　　金：中国地质调查局西安地质调查中心"新疆富蕴县大泉金多金属矿调查评价"(1212011220626)

摘　　要：库马苏南铅锌多金属矿点位于北阿尔泰库马苏铅-锌-铜-金成矿亚带上。通过对研究区开展1:1万地质测量、1:1万岩石测量(100 m×20 m)等工作,发现11条铅锌矿(化)体,1条铜矿体;铅锌矿(化)体矿床类型主要为火山岩型,少量石英脉型;火山岩型铅锌矿(化)体产出于北西—南东向逆断层中,石英脉型铅锌矿(化)体产出于北东—南西向张性节理构造中。研究区1:1万化探综合异常发育,异常套和较好,化探综合异常分布区与地层、构造及火山岩型铅锌矿(化)体的走向位置吻合,地球化学环境对成矿十分有利。研究区南东侧开展的1:1万磁法测量工作显示,高磁异常能明确指示出该区构造破碎带、围岩蚀变带以及部分岩体位置。在筛选1:1万化探综合基础上开展地质、物探工作,并布设钻探施工查证,有望实现该区火山岩型铅锌矿多金属矿找矿突破。The lead-zinc polymetallic ore in the south side of Kumasu area is located in the Kumasu Pb- Zn- Cu- Au metallogenic belt of North Altai. Through the 1：10000 geological survey and 1：10000 rock survey, eleven lead-zinc mine bodies and one copper ore body were discovered. The lead-zinc mine is dominated by volcanic rock and a few quartz veins. The lead-zinc volcanic mine scattered along the thrust faults in northwest direction, and vein type deposits scattered along the tension fault in north east direction. The 1：10000 geochemical anomalies developed in study area, and element anomaly interlocked better. The trend of geochemical comprehensive anomaly area coincided with that of strata, structure and the volcanic type lead-zinc mines, and the geochemical environment is very favorable for mineralization. Based on results of the 1：10000 magnetic sur vey, the high magnetic anomaly can clearly indicate the tectonic fracture zone, rock alteration zone and part of the rock mass position. On the basis of comprehensive geochemical anomaly in screening, geological and geophysical exploration work was carried out and verified by drilling op eration. Breakthroughs are expected to be made in volcanic type lead-zinc polymetallic ore pros- pecting.

关 键 词：铅锌多金属矿 地质特征 控矿构造 库马苏南 阿尔泰山 

分 类 号：P618.42[天文地球—矿床学]