吴家沟金矿带展布特征探讨

利用工程地质学的理论,以地形地貌、地层特征、地表槽探工程和硐探工程所揭示的特殊地质现象为依据,分析论证吴家沟金矿点地段存在一个巨型古滑坡,并对其规模、特征进行了剖析,认为吴家沟金矿点地表矿带位于古滑坡上,是古滑坡堆积体。通过对吴家沟金矿点与庞家河和堡子山两已知金矿地理位置、矿体赋存层位、矿化蚀变特征、矿物组合及微量元素特征对比,论述3个金矿点为同一条金矿带。采取模拟分析的方法,对古滑坡体原貌进行复原,对吴家沟金矿与吴家沟古滑坡体的关系进行了分析,并进一步分析古滑坡对吴家沟金矿体的破坏程度,认为古滑坡对地表矿体破坏较为严重,对深部矿体无影响,根据坡体倾向坡度和滑面产状估算未被破坏的矿体的平面位置大约位于地表矿体正北方向80~120 m处。

Discussion on Distribution Characteristics of Wu jiagou Gold Ore Deposit

Based on the theory of engineering geology,we analyzed the data of the specific geological phenomenon revealed by topography,strata characteristics,costeaning and adit exploration engineering,showing that a huge ancient slide exists in Wujiagou goldmine.The analysis of its scale and characteristics indicates that the surface ore belt of Wujiagou goldmine is located on the ancient slide as talus slide.Comparing the location,the bearing layer of ore bodies,the mineralized and altered characteristics,the miner...