攀枝花红格钒钛磁铁矿区深部及外围找矿方法分析

Study of Prospecting Methods in the Deep and Peripheral Area of the Hongge Vanadium Titanomagnetite Deposit in Panzhihua

红格矿区是我国目前最大的钒钛磁铁矿资源基地,红格基性—超基性含矿岩体主要受区域的三级控岩构造控制。由于大黑山玄武岩浆的喷溢及正长岩体、花岗岩体的破坏,以及后期构造运动的影响,使该区第三级控岩构造转化为以南北向的挤压构造为主。并把原来可能系一个完整大岩体分割成了现在的大小不等、岩相带不全、剥蚀程度不同的十余个岩体(块)组成的岩体(块)群。研究红格岩盆分布特征拓展找矿空间取得外围找矿突破;利用“攀西杂岩层状韵律旋回模式”就矿找矿、预测深部矿体,探边摸底;最后以地磁异常加深部钻孔验证定位深部矿体,是红格矿区深部及外围勘查取得重大进展的有效找矿方法组合。

The Hongge ore district is the greatest vanadium titanomagnetite resources base in China.The Hongge basic-ultrabasic ore-bearing intrusion is controlled by regional tertiary structure which changed to longitudinal compressional structure due to basaltic magmatic effusion,disruption of the primary syenite and granite intrusion and late tectonic movement.The most effective combination of prospecting methods in the Hongge region is as follows:high-precision magnetic survey plus deep drilling plus three-component logging for prospecting in the depth and periphery in the known orebodies;high-precision magnetic survey plus geological mapping plus drilling verification of some magnetic anomalies for geological survey and evaluation;deep drilling for geophysical anomalies verification.