金河磷矿马槽滩矿区矿层的形态与厚度主要受底板古岩溶面的制约,多呈波状起伏、厚薄不均等特征。尤其在四中段以上,原有探矿工作程度低,在一些矿体增厚地段或零星矿体,往往出现丢矿现象。我们对地质资料与开采资料认真进行了分析对比后认为,在已结束开采的部分地段存在丢矿的情况。 The shape and thickness of the ore layer in the Mahetan mining area of ​​Jinhe Phosphorus Mine are mainly controlled by the ancient karst surface of the bottom plate, and are mostly characterized by wavy undulation and unequal thickness. Especially in the middle four or more, the original degree of prospecting work is low, in some thicker ore lots or sporadic ore bodies, often appear throwing mine phenomenon. After careful analysis and comparison of the geological data and the mining data, we think that there is a situation of losing ore in some areas that have been closed.