卡梅什布伦铁矿公司开采的有用矿物(铁矿石和熔剂性石灰石)呈缓倾斜层状产出,因此露天矿用内部排土方式进行开采。每年开采工作面的推进速度,4个生产露天矿的平均值为80m。在露天矿长度为2～4km的情况下,铁矿石和石灰石的开采每年要占用25×10~4～30×10~4m~2(25～30公顷)的可耕土地。公司于1961年着手进行复垦作业,1964年就首批付给“创始”集体农庄15×10~4m~2(15公顷) 恢复的土地。而露天矿在这期间 The useful minerals (iron ore and fluxed limestone) mined by the Kameshbulun Iron Mine are gently inclined layered so that opencast mines are mined by internal drainage. The annual mining face of the advancing speed, 4 production of open-pit mine average of 80m. In the case of open pit mines of 2 ~ 4 km, iron ore and limestone mining occupy 25 × 10 ~ 4 ~ 30 × 10 ~ 4m ~ 2 (25 ~ 30 ha) of arable land each year. The company embarked on reclamation operations in 1961, and in 1964 the first reclaimed land of 15 × 10 ~ 4m ~ 2 (15 hectares) was reclaimed for the “founding” collective farms. The open pit mine during this period