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上宫金矿区有大断裂贯穿矿体赋存干断裂带内，裂隙发育，蚀变强烈，岩矿破碎、酥散、松软，断裂构造组成的岩石有安山岩、糜粒岩等。矿层的孔壁坍塌掉块现象与漏失都比较严重。围岩主要为杏仁状安山岩及大斑安山岩，可钻性多为8级，少部分达9—11级。围岩由于受构造影响，裂隙发育，漏失时有发生，但岩石坚硬，孔壁较稳定，此层采用金刚石钻进。地表为堆积层或各类安山岩风化裂隙带。堆积层主要由砾石、卵石及粘土组成，无胶结，钻进此层极易垮塌且漏失严重。风化裂隙带深度约100m左右，裂隙发育由于地表堆积之泥砂，石粒顺雨水流入裂隙充填，形成充填裂隙带，此层漏失严重，但孔壁稳定。
The Shanggong gold deposit has large faults penetrating through the host ore-bearing dry faults, with developed fissures and strong alterations, rock and ore crushing, crisp loose, soft and fault-forming rocks with andesite and micrite. The hole wall of the coal seam collapses and the block loss phenomenon is relatively serious. Surrounding rocks are mainly almond-shaped andesite and Da’an Andesite, with drillability of mostly 8 and a few of 9-11. Due to the influence of tectonics, the fractures developed and the leakage occurred from time to time. However, the rock is hard and the pore wall is stable. Diamond drilling is used in this layer. Surface for the accumulation of layers or various andesite weathering cracks. Accumulation is mainly composed of gravel, pebbles and clay, no cementing, drilling this layer is very easy to collapse and serious loss. The depth of weathering fracture zone is about 100m. Because of the surface sediment, the fissures are filled with rainwater into the fissures to fill the fissure zone. This layer has serious loss but the pore walls are stable.