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某大型露天铁矿矿体分布于闪长岩与大理岩接触带中,其成因属于接触变质矿床。东露天现采区矿体,一般为似层状或透镜状,倾角为45°～80°,矿体中含有大小不同,厚度不一的岩脉和有害夹层。矿石类型按矿种分为低铜氧化矿,高铜氧化矿,原生矿等七个类型,而矿石含铜较高。铁矿品位一般为TFe44～55％,SiO_27.20％,S1.65％,P0.046％。氧化矿以赤铁矿为主,其中含有褐铁矿,孔雀石及少量赤铜矿,黑铜矿。主要脉石为软蛋白石,高岑土,方解石等。低铜氧化矿以赤铁矿为主,有褐铁矿,黄铁矿,高岑土,石英及次生方解石等。原生矿以磁铁矿为主,含有黄铁矿,磁黄铁矿。主要脉石为方解石,石英和矽-卡岩等。由于矿种类型复杂,而给生产中矿岩分
A large open-pit iron ore body is located in the contact zone of diorite and marble, which belongs to the metamorphic deposit. The ore body in the open field in the east is generally layered or lenticular with dip angle of 45 ° ~ 80 °. The ore body contains dikes of different sizes and thicknesses and harmful interlayers. According to the type of ore is divided into low-copper oxide ore, high-copper oxide ore, primary ore and other seven types, and high copper ore. Iron ore grade is generally TFe44 ~ 55%, SiO_27.20%, S1.65%, P0.046%. Oxidized ore is mainly hematite, which contains limonite, malachite and a small amount of red copper ore, black copper ore. The main gangue soft opal, high Cen soil, calcite and so on. Low-grade copper oxide hematite, limonite, pyrite, high Cen soil, quartz and secondary calcite. Primary magnetite magnetite, pyrite, pyrrhotite. The main gangue calcite, quartz and silicon - khaki and so on. Because of the complex types of minerals, and to the production of ore rock points