概况我队1978年至1981年对银矿山矿区的膨润土沸石矿进行了普查与初步勘探的钻探施工,提交了初勘报告.前后共施工钻孔89个,孔深130～250米,最深378米;见矿孔77个,其中65个孔作为储量计算的依据孔,并查明了该区的地质构造,解决了取心困难与漏水、缩径等问题,取得了较好的施工效果,岩矿心采取率满足了地质要求,各种矿心及顶底板采取率大于75%;岩心采取率大于65%(见表).88个钻孔弯曲各仅1°左 Overview Our team conducted a preliminary survey on the exploration and construction of bentonite zeolites in the Silver Mine area from 1978 to 1981. 89 drilling holes with a depth of 130 to 250 meters and a depth of 378 meters ; 77 mines were found, of which 65 holes were used as the basis for the calculation of reserves, and the geological structure of the area was identified. Problems such as coring difficulty, water leakage and diameter reduction were solved and good construction results were obtained. Rock Core collection rate meets geological requirements with various core and top plating rates greater than 75% and core rates greater than 65% (see table) .88 holes drilled only 1 ° left