甘肃北山地区红山铁矿床为赋存于元古界青白口系顶部的沉积变质型铁矿床,其铁矿石主要类型为磁铁矿,少量为赤铁矿、镜铁矿。矿石储量可达亿吨,经野外调研和室内综合研究,本矿床形成于裂陷海盆中,与多处含铁的热卤水喷流柱上涌有关,属于“Sedex”型铁矿类型。 The Hongshan iron deposit in the Beishan area of ​​Gansu is a sedimentary metamorphic iron deposit hosted on the top of the Qingbaikou system of the Proterozoic. The main types of iron ore are magnetite and a small amount of hematite and specular iron ore. Ore reserves of up to 100 million tons, the field research and indoor comprehensive study, the deposit formed in the rift basin, and a number of iron-containing hot brine jet upstairs, belonging to “Sedex” type iron ore type.