蒙古西北部金多金属矿床地质特征及找矿前景  

Geological characteristics of gold-polymetalic deposit and prospecting potential for northwestern Mongolia area

作　　者：沈光银 

机构地区：[1]天津华北地质勘查局核工业247大队,天津301800

出　　处：《矿产勘查》2013年第2期219-223,共5页Mineral Exploration

基　　金：2010年国外矿产资源风险勘查专项资金(编号:2010-133)资助

摘　　要：通过对蒙古西北部金多金属矿床成矿地质背景、成矿区(带)特征、矿床类型、地质特征及矿床成因等进行综合分析,总结归纳了该区金多金属矿床成矿规律。通过分析典型金、银、铜铅锌、钨钼矿床的地质特征及控矿因素,结合区域综合找矿成果信息,认为蒙古西北部阿尔泰—萨彦成矿区成矿地质条件优越,斑岩型、夕卡岩型、韧性剪切带型和石英脉型金矿床,火山喷流沉积型、斑岩型铜铅锌矿床和与基性—超基性岩有关的铜镍矿床具有很大的找矿潜力。By means of comprehensive analysis on metallogenic background, features of metallogenic zones , mineral deposit types and geological characteristics, and deposit genesis of the gold - polymetallic deposit in the northwestern Mongolia area, the paper summarizes the ore - forming regularities of the gold - polymetalic deposit in this region. Through the analysis of geological characteris-tics and ore -controlling factors of the typical mineral deposits such as gold, silver, copper- lead-zinc, tungsten-molybcndium de-posits with the combinations of integrated information of regional exploration achievements, the authors point out that there is favorable geological conditions for exploring porphyry, skarn, ductile - shear types of gold deposits, VMS sulphides type and porphyry type cop-per - lead - zinc deposits, and copper - nickel deposits associated with the mafic and ultra - mafic rocks along Altai - Sajan metallo-graphic zone in the northwestern Mongolia area.

关 键 词：成矿区(带) 韧性剪切带 火山喷流沉积 地质特征 找矿前景 蒙古 

分 类 号：P612[天文地球—矿床学] P618.51[天文地球—地质学]