1980年,我队在内蒙昭乌达盟南部安家营子矿区,进行了金刚石绳索取芯钻进试验.自7月1日至10月10日,共开动2.74个台月,钻进1505米,完成5个钻孔,效果比较理想. 生产试验条件(一)地层中粗粒花岗斑岩,可钻性7～9级.矿体和矿化体有含金蚀变断裂,宽度一般在0.3米. (二)设备 In 1980, our team conducted a diamond core coring drilling test at Anjiayingzi Mining Area in the south of Zhauda League in Inner Mongolia.From July 1 to October 10, a total of 2.74 units were launched in Taiwan, drilling 1505 meters, Completion of five drilling, the effect is relatively ideal.Production test conditions (a) of the coarse grained granite porphyry, drillability of 7 to 9. Ore body and mineralized body with alteration of gold, the width is generally 0.3 Meter (b) Equipment