斑红山地区爆破角砾岩筒金及多金属矿成矿潜力探讨

A Study of Metallogenic Potential of Explosive Breccia Tube Gold and Polymetallic Orein Banhongshan Area

斑红山地区地处阿尔金山南坡,南侧紧邻柴达木盆地西北缘,成矿区带属俄博梁华力西期(钨、铋、稀土)成矿带。位于大通沟南山东西向断裂和大浪滩北缘大断裂之间,华力西期中酸性侵入岩广泛分布,断裂构造及次级构造极为发育,具备良好的成矿区位条件和地质背景。目前通过工作发现多处金及多金属矿化点,但均未能突破。为了进一步探寻成矿潜力部位,针对本区西部位于三条大断裂的交汇复合部位,通过地质、化探和遥感资料的综合研究和对比分析,认为该区发现的爆破角砾岩筒具备浅深部成矿的可能性较大。若通过进一步浅深部探究,取得找矿突破的可能较大。另外,该区的找矿突破对整个阿尔金山南坡一带的金多金属找矿具有重要的指导意义。

Banhongshan area is located in Ahun south slope of Chaidamu basin. The mineralization belt belongs to Erboliang Variscan （tungsten, bismuth, rare earth） metallogenic belt. Between the Datonggounanshan east-west fracture and Dalangtan northern fracture, variscan midterm acidic intrusive rocks are widely distributed. The fracture structure and the development of secondary structure is of extremely good metallogenic condition and geological background. Now, we found gold and polymetallic mineralization through work, but it failed to break through. In order to further explore the metallogenic potential part, this area, in view of the western regional composite parts, is located in the intersection of three major fault. Through the comprehensive research of geological, we have found geochemical and remote sensing data in our comparative analysis. I think it is in the explosive breccia cylinder with shallow deep metallogenic probability. By a shallow deep exploration, further prospecting breakthrough may be larger. In addition, the area of prospecting breakthrough for the whole of Ahun south slope area of gold polymetallic ore is of important guiding significance.