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一、矿床地质简介口前铁—钼矿床主要赋存在燕山期花岗斑岩与震旦亚界铁岭组白云岩接触带中。花岗斑岩分布于矿区中部,出露面积仅0.37平方公里,呈岩株状侵入震旦亚界地层中,岩石呈浅红灰色,中粗粒斑状结构,斑晶为正长石,粒度一般2—3厘米,最大者10厘米左右,基质为显晶质,由正长石、更长石、石英、黑云母、磁铁矿、磷灰石、榍石等组成。与矿化有关的震旦亚界铁岭组,主要为灰黑色、中厚层至厚层白云岩、夹薄层钙质白云
First, the deposit geology Brief introduction Precursor iron - molybdenum deposit mainly exists in the Yanshanian granite porphyry and Sinian Asia Tieling Formation dolomite contact zone. Granite porphyry is distributed in the middle of the mining area, with an exposed area of only 0.37 square kilometers. The granite porphyry intruded into the strata of the Aurora sub-boundary. The rocks are light red-gray, 2-3 cm, the largest of about 10 cm, the substrate is crystal, composed of orthoclase, longer stone, quartz, biotite, magnetite, apatite, stone and other components. The Tieling Formation of Sinian sub-region related to mineralization mainly consists of gray-black, medium-thick to thick dolomite, thin calcareous white clouds