草原浅覆盖区浅钻取样技术的研究与应用

为实现草原浅覆盖区快速揭露，并最大限度减少对环境的破坏，采用浅层钻探取样技术揭穿第四系，采取残坡积层及基岩层样品，用于浅钻金属矿产地球化学勘查、浅覆盖区地球化学立体填图及代替槽探的工作中。研究了干旱半干旱草原浅覆盖区浅钻取样技术方法组合。该方法在花敖包特铅锌矿及东乌旗地区的应用表明，通过灵活合理地调整钻探装备及钻进工艺方法，可以顺利地采取目的层样品。

Research and Application of Shallow Sampling Technology in Shallow Overburden Area of Grassland

To quickly expose shallow overburden areas of grassland and minimize the damage to environment, the shallow drilling sampling technology was used to expose the Quaternary and take the eluvial slope and bedrock layer samples, for geochemical exploration of metallic minerals shallow drilling, geochemical stereoscopic mapping and trenching replacing. A combination of shallow drilling sampling techniques in the shallow overburden area of arid and semi arid grassland was developed. The application of this method in Hua''aobaote lead zinc mine and Dongwuqi area show that through flexible and reasonable adjustment of drilling equipments and drilling process, the target layer sampling should be smooth.