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大红山铁矿Ⅰ号铁铜矿带沿底巴都主背斜南、北两翼翼部延展,受背斜产状及形态控制。由火山沉积成因形成的I号铁铜矿带矿体主要产于大红山群曼岗河组第三岩性段的中上部,以玫瑰红色白云石大理石岩标志层与曼岗河四段分开。区内构造复杂,其中以南北向构造对矿体的走向延伸或走向形态有制约、破坏作用。B18线以东矿体由于受到F1断层(位于B18~B20线之间,断层南段与X=65200及B18线斜交通过,
The iron ore belt of No. 1 in Dahongshan Iron Mine extends along the wings of south and north flanks of the main anticline of the Bashan at the bottom, controlled by the appearance and shape of the anticline. The I-Fe-Cu orebodies formed by volcano-sedimentary genesis are mainly produced in the middle-upper part of the third lithologic section of the Manganghe Formation in the Dahongshan Group and separated from the fourth section of the Manganghe River by the sign of the rose-red dolomite marble rock . The structure is complicated in the area, with the north-south structure restricting and destroying the direction of the ore body extension or strike. Due to the F1 fault (located between B18 and B20 lines), the ore body to the east of line B18 is obliquely crossed by X = 65200 and B18 lines in the southern section of the fault,