山东龙口大磨曲家金矿地质及地球物理地球化学特征  

Geophysical and Geochemical Characteristics and Geology of Damoqujia Gold Deposit in Longkou of Shandong Province

作　　者：曲少飞 

机构地区：[1]武警黄金第七支队,山东烟台264004

出　　处：《山东国土资源》2008年第3期26-30,共5页Shandong Land and Resources

摘　　要：山东龙口市大磨曲家金矿区位于沂沭断裂带东侧,招平成矿带北端,玲珑金矿田东风矿床北东段。区内控矿赋矿构造为NE向断裂带及派生、伴生次级断裂,两组或多组断裂构造的叠加交汇处是金成矿的最有利部位。石英脉型或蚀变岩型金矿床在含矿带上出现次级高阻的石英脉或者次级高阻的硅化带及绢英岩化带,而次级高阻、高极化率局部异常是该区矿脉异常的基本特征。通过对该区地质暨地球物理、地球化学特征的分析,建立了找矿标志。Damoqujia gold deposit in Longkou city of Shandong province locates in east part of Yishu fault belt, north part of Zhaoping gold ore - forming belt, and northeast part of Dongfeng gold deposit in Linglong gold field. Major ore - controlling and ore - hosting structures are fault belts with the trend of NE and secondary faults which belong to the host structure. The most favorable parts for gold ore -forming are the zones where two or more fault structures contacted and crossed. Both quartz vein type or altered rock type gold deposits may shows secondary high - resistivity quartz vein or the secondary high - resistivuty silicification belt and sericite - quartz - related belt in the ore - bearing belts. Regional abnormity of these secondary high - resistivty, high - polarization are basic characteristics of vein abnormity in this area. Through analysis on geology, geophysical and geochemical characteristics in this area, ore - prospecting symbol is set up, which will provide basis for further geological exploration.

关 键 词：金矿 地球物理 地球化学 找矿标志 大磨曲家金矿 山东龙口 

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