西秦岭下拉地铅锌矿构造控矿规律及找矿应用  

Structure-controlled Mineralization Rules and Their Implications to Prospecting in the Xialadi Lead-Zinc Deposit,Western Qinling

作　　者：余超[1] 余君鹏[1] 

机构地区：[1]甘肃省地质调查院,兰州730000

出　　处：《地质与勘探》2010年第2期261-266,共6页Geology and Exploration

基　　金：国土资源部"百人计划"科技创新人才工程资助

摘　　要：研究认为,窑沟-下拉地铅锌成矿带是在晚古生代中期伸展构造体制下的产物,构造控矿在该区主要表现在裂陷期断裂对成岩成矿的控制上,根据时间承接关系和不同时段构造控矿侧重点不同,可将构造控矿分为三期四方面:即构造-含矿地层沉积、构造-基性火山活动及矿化、构造-次火山作用与成矿和区域构造演化对成矿的控制。这些认识在腰路湾铅锌工业矿体的发现过程中得以很好应用,故深入研究构造控矿规律对该区地质找矿十分重要。This research suggests that the Yaogou-Xialadi lead-zinc mineralization belt is product of the extensional regime during the middle period of late Paleozoic time.The structural control of the ore mainly manifests in the fact that faults during rifting dictated the formation of rock and mineral.Based on the time sequence and different primary controlling in varied periods,such a process can be divided in to four aspects,i.e.deposition of structural and ore-bearing strata,the structural and basic volcanic activity and mineralization,structural and secondary volcanism and the regional tectonic evolution that controlled mineralization.Recognition of these rules has successfully applied to the discovery of the Yaoluwan lead-zinc deposit.So an in-depth study of structural-controlled mineralization is of great importance to prospecting in this region.

关 键 词：窑沟-下拉地 铅锌成矿带 构造控矿 找矿应用 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]