沉积铁矿的形成与铁从陆地带入沉积盆地有关.有足够的资料可以使人确信,陆地上的铁所以能够活动,地下径流起了巨大的作用.据Ф·A马卡连柯的资料,现代大多数平原河流的地下补给,主要是靠地下径流上层的土壤水.这个特点可能同样适用于地质年代更早的河流,这一点恐怕是不容置疑的.在上升地表的地下循环水中,铁呈亚 The formation of sedimentary iron ore is associated with the transport of iron from the land into the sedimentary basins, and there is sufficient information to convince people that the activity of iron on land is sufficient and that the runoff from the earth has played a huge role.According to the information of ФA Makarenko , The underground replenishment of most of the plains rivers in modern times is mainly caused by the soil water in the upper part of the underground runoff.This feature may be equally applicable to the river with earlier geological age.It is undoubted that in the underground circulating water that rises to the surface, Was sub