“磷灰石”采矿联合公司的中央矿井开采的拉斯乌姆乔尔矿床位于希宾山岳岩体的东南部,海拔高度达1000米。相邻高原的山坡相对高差为400～600米,上部坡度为70～80度,而下部为5～10度。矿山气候条件复杂,主要是气温低、降水量很大。年平均温度为5.5℃,年总降水量达1800～2000毫米,其中1300～1500毫米 The Ras Uhm Johor deposit, which is mined in the central mine of the apatite mining conglomerate, is located southeast of the rock mass in the Hibin mountain, at an altitude of 1,000 meters. The relative elevation of the hillsides of the adjacent plateau is 400-600 meters, the upper slope is 70-80 degrees, while the lower is 5-10 degrees. The climatic conditions of mines are complicated, mainly because of the low temperature and large amount of precipitation. The annual average temperature of 5.5 ℃, the annual total precipitation of 1800 ~ 2000 mm, of which 1300 ~ 1500 mm