甘肃白银厂及其外围地区金属矿成矿规律及矿产预测

通过甘肃省白银厂及其外围地区矿产远景调查项目,共圈定1:5万航磁异常12个、1:5万高磁异常7个、1:5万化探综合异常64个,新发现矿点4处、矿化点6处,矿种有铜、铅、锌等。通过对研究区成矿地质条件、1:5万物化探综合异常特征、矿(化)点分布特征等进行综合分析研究,阐明了该区成矿的时空分布规律和矿产的共生组合规律,总结出区内典型矿床“多位一体”找矿预测模型。综合圈定重点成矿远景区9个,其中A类远景区3处,B类远景区2处,C类远景区4处; 优选圈定找矿靶区4个,其中A类1个,B类1个,C类2个。

Metallogenic regularity and mineral prediction of metallic deposits in Baiyin mine field and its periphery of Gansu Province

Through the mineral prospecting project in Baiyin mine field and its periphery of Gansu Province, the authors have delineated twelve 1:50 000 aeromagnetic anomaly areas, seven 1:50 000 high magnetic anomaly areas and sixty-four 1:50 000 geochemical prospecting anomaly areas. Besides, four mineral occurrences and six mineralized spots were found, including copper, lead, zinc etc. The temporal and spatial distribution of mineralization and the paragenesis and combination rules of mineral resources were also expounded, after a comprehensive study of the metallogenic geological conditions, 1:50 000 geochemical and geophysical anomalies and the characteristics of mineral occurrence distribution. The “multi-type” prospecting prediction model was concluded in the study area. Nine key metallogenic prospective areas were delineated, including three type A, two type B and four type C prospective areas. Four target prospecting areas were delineated, including one type A, one type B and two type C target prospecting areas.