蚀变矿物三维空间模型与找矿预测研究——以吉林某斑岩型钼矿为例

The application in mine protection of altered mineral zoning method based on 3D geological model:A case of a certain porphyry molybdenum deposit in Jilin Province

基于三维地质建模手段,通过对比研究蚀变矿物的空间分带特征和矿(化)体在空间的展布形态所建立的找矿预测理论,作为一种新的研究方法具有重要的现实意义。该研究选取某斑岩型钼矿为研究对象,通过"基于三维地质建模的蚀变矿物分带"找矿预测理论,展开蚀变矿物与矿体的空间分布关系的对比研究,并对蚀变矿物进行分带,最终建立起该矿区三维蚀变矿物空间分带模型。其结果显示,矿区蚀变矿物在空间上与矿(化)体之间关系密切,并具有向北部继续延伸的趋势,表明矿区在北部仍有较大的勘查找矿潜力;其结果与矿区土壤地球化学异常所指示的方向是一致的,从而验证了"基于三维地质建模的蚀变矿物分带"理论在找矿预测工作中的可行性和有效性。

The new mine protection theory,based on 3D geological model,which is established by researching and comparing the relationship of the distribution of altered minerals and ore bodies in space,is very important. This study on a certain Porphyry Molybdenum Deposit in Jilin Province,made by the theory of ＂Altered mineral zoning based on 3D geological model＂,has eventually set up the 3D model of the altered minerals in this region after researching and comparing the relationship of the distribution of altered minerals and ore bodies in space and the altered mineral zoning. The conclusion shows that the unclosed altered minerals have extending tendency,which indicates that there is massive potential for ore finding in the northern area,and ithas at last been verified that this new theory is effective and applicable.