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我队所勘探的地区是原生矽質頁岩組成的破碎带,其形成是由于倒轉背斜、皺軸平行的大型上冲断层所致。整个破碎带断断續續,在將近3700公尺寬之中,約有100～160公尺是含矿破碎带。在靠近地表部分由于雨水的淋蚀,岩石风化剧烈,其间膠结物流失,形成松散的砂礫狀物。深部情况,根据坑道观察,其风化程度仍然相当深远,多数破碎成3～5公分的菱面体,而块度在5公分以下的佔71％,其中有石英脈的伪硬盤、礫石、黄土、石英块、矽質页岩块、
The area explored by our team is a fractured zone of primary siliceous shale that was formed as a result of a reversible anticline and a large overthrust parallel to the crease axis. The entire broken zone is intermittent, and in nearly 3700 meters wide, about 100 to 160 meters is the ore-bearing fractured zone. Near the surface of the earth due to the erosion of rainwater, the rock weathered violently during which cement ceased to form a loose gravel. According to the tunnel observation, the degree of weathering is still quite far, mostly broken into 3 to 5 cm of rhomb, and the block below 5 cm accounted for 71%, of which there are quartz pulse pseudo hard disk, gravel, loess, quartz Block, silicon shale blocks,