当矿体埋藏不深时,可利用露天开采法开采。位于分水岭地段和地形被强烈刻切的山区的矿床,以及部分从分水岭到河谷和其他低凹地区的斜坡上的矿床;作可为这种类型的典型例子。这种类型的矿床主要充水来源系大气降水,故当预测未来露天采矿场的 When the ore body is not buried deep, the exploitation of open pit mining method can be used. Deposits in mountain areas where the watersheds and terrain are strongly carved and deposits that partially slope from watersheds to valleys and other lowland areas are typical examples of this type. The main source of water for this type of deposit is atmospheric precipitation, so when predicting the future of open pit mining