一、概况 昆阳磷矿位于滇池湖畔,邻接昆明市西山区。矿区海拔自1890至2480米,采区横向处于1980至2350米的缓坡沟谷地带。矿床成因是浅海大型机械化学沉积的磷块岩矿床,赋存于下寒武纪砂页岩系底部,复于上震旦纪灯影灰岩假整合面上。矿体分,为上下两层,产状变化小,倾角10°～30°,一般为15°,中间白色页岩夹层厚度为0～7米,一般2米左右,是上陡下缓的山坡露天矿。矿床储量大,含磷品位高,分布范围广,是云南得天独厚的地下磷资源,是世界上最大型的磷矿基地之一。 I. Overview Kunyang Phosphate Lake is located in Dianchi Lake, adjacent to Xishan District of Kunming. The mining area is from 1890 to 2480 meters above sea level and the mining area is laterally located in a gently sloping valley between 1980 and 2350 meters. The genesis of the deposit is a shallow marine large-scale mechano-chemical phosphorous deposit, which occurs at the bottom of the Lower Cambrian sand shale complex and complex with the fossiliferous limestone integrated surface on the Upper Sinian. Ore body, for the upper and lower two layers, the change of shape is small, inclination 10 ° ~ 30 °, generally 15 °, the middle white shale interlayer thickness of 0 to 7 meters, usually about 2 meters, Opencast mine. Deposit reserves, phosphorus-bearing high grade, a wide range of distribution, Yunnan is unique underground phosphorus resources, is the world’s largest base of phosphate rock.