小秦岭矿田北带钼矿床地质特征及成矿预测

Geological Characteristics and Mineralization Prediction of Molybdenum Deposit in the Northern Ore Belt of Xiaoqinling Orefield

小秦岭矿田是我国第二大产金基地,北矿带钼矿体的发现为寻找接替资源提供了方向。为使后续勘探找矿工作更有针对性,对该区的泉家峪钼金矿区、秦南钼金矿区、马家凹钼金矿区、大湖钼金矿区及车仓峪钼矿区的地质特征及钼矿体的赋存空间特征、成矿年代及成矿物质来源进行了总结,并据此对钼矿成矿潜力区进行预测。指出下一步的勘查方向应为:区域性大断裂F5的深部,五里村背斜南翼的构造带成矿有利部位,酸性岩体与太华群的接触部位及岩体内部断裂带,北矿带及以北区域进行隐伏岩体的勘查。

Xiaoqinling ore field is the second largest gold production base in China.The discovery of molybdenum ore body in the northern ore belt provides a direction for finding replacement resources.In order to make the subsequent exploration and prospecting work more targeted,the geological characteristics of Quanjiayu molybdenum-gold mining area,Qinnan molybdenum-gold mining area,Majiaao molybdenum-gold mining area,Dahu molybdenum-gold mining area and Checangyu molybdenum ore area and the occurrence spacial characteristics of the molybdenum ore body,metallogenic years and sources of metallogenic materials are summarized,and the metallogenic potential areas of molybdenum deposits are predicted accordingly.It is pointed out that the exploration direction for the next step should be as follows:exploration of the deep part of the regional large fault F5,the favorable metallogenic part of the structural belt of the south wing of Wuli village anticline,the contact part of the acid rock body and the Taihua group and the internal fractural zone of the rock mass,the hidden rock masses in the northern ore belt and the area to the north.