甘肃寨上金矿区地球物理和地球化学特征  

Geophysical and geochemical features of the Zhaishang gold area,Gansu

作　　者：姜海平[1] 陆志平[2] 赵志龙[2] 李彦茹[2] 

机构地区：[1]武警黄金技术学校,湖北襄樊432100 [2]武警黄金第五支队,陕西西安710110

出　　处：《黄金地质》2003年第2期50-54,共5页Gold Geology

摘　　要：寨上金矿位于西秦岭岷县—礼县成矿带西部,矿体主要赋存于二叠纪的板岩、粉砂岩中,总体呈带状展布,严格受NWW向断裂控制,其派生的次级(层间)断裂为容矿构造。激电中梯测量圈出5处高阻异常、1条低阻高极化带、7处视极化率异常,金矿脉与100～200Ω·m低缓高阻异常和1 0%～1 2%的视极化率异常吻合。1∶20万、1∶5万的水系沉积物测量仅显示出低缓异常,进一步的土壤测量可圈定金矿体的赋存位置、走向。总结了可直接指导本区及外围野外地质工作的找矿方法和找矿标志。The ZHaishang gold deposit is located in the west of Min County to Li County mineralization belt of western Qinling.The orebody mainly occurs in slate and siltstone of the Permian period,strictly controlled by the NWW trend faults of which the induced secondary (interlayer) faults belong to the host structure. There are 5 high resistivity anomalies,1 lowrsistivity highpolarization belt and 7 polarization rate anomalies that have been blocked out.Gold veins are consistence with the 100～200 Ω·m of lower high resistivity anomalies and 10%～12% of polarization rate anomalies.The stream sediment survey of 1∶200 000 and 1∶50 000 only show the lower anomalies, and the further soil survey may block out the location and trend of gold bodies.Some prospecting methods and clues have been concluded in the article for helping the field geological work of this area and periphery directly.

关 键 词：甘肃 金矿区 地球物理 地球化学 甘肃 金矿床 视极化率 水系沉积物 找矿方法 找矿标志 

分 类 号：P618.51[天文地球—矿床学]