【摘要】 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。更多还原

【Abstract】 Honshan iron deposit in Beishan region of Gansu Province is a sedimentary metamorphic iron deposit occurred at the top of Proteroroic Qinbaikou System,its’ reserves shoul be above 0.1 billion tones.The iron ore consist of magnetite mainly with some hematite and iron glance.The results of field investigation and office study show that this deposit formed within rifted and depressed ocean basin,and it should be Sedex type iron deposit related with the eruption column of hot brine fluid.更多还原