摘要
东伙房金矿位于内蒙古武川县， 为一小型金矿床， 属于与浅成花岗斑岩有关的中浅成中高温热液矿床． 本次成矿预测思路为： 在已知Ⅰ号矿体及其他含金蚀变带上， 建立大量的观测点， 把每个观测点的地质、地球物理、地球化学、矿物学等方面的成矿信息分析研究， 并把Ⅰ号矿体作为已知矿体， 总结Ⅰ号矿体的成矿信息特征， 建立接近于客观实际的已知矿体模型，用之与其他含金蚀变带进行对比， 从而预测出成矿的有利地段．作者把以上这种工作方法称为综合信息叠加组合及相似类比法．本次工作发现了两处较好的矿体，同时发现了一种新的矿化类型——斑岩型金矿化， 这对该地区找矿预测具有重要意义．
Donghuofang gold deposit, located in Wuchuan county,Inner Mongolia, belongs to moderate supergene and high moderate temperature hydrothermal gold deposit related to supergene granite porphyry This mineralization prediction adhere to following rules:1)Resembling analogy rule:similar geological setting,mineralizing factors and minerogenetic controlling conditions can produce similar deposits,so that the mineralization prediction can be carried out from known to unknown or from the earth's surface to depth,and the known orebody model which is close to the fact is established 2)Synthetic information constituting rule:any kind of deposits is formed by the combination of multi factor and multi condition,so that it is important to decide the function of the factors and conditions in mineralizing process,and all kinds of quantitative information combinations from the important mineralization information synthetical analysis, certification and supplement can be used to guide mineralization prediction more straightly and clearly Based on the above rules,our way of mineralization predication is:establishing a large number of observation points on the known No.1 orebody and other auriferous alteration zones,studying the geological,geophysical,geochemical and mineralogical mineralization information from every point,taking No.1 orebody as the known one and comparing the information summarized from the other auriferous alteration zones, and seeking favorable mineralization districts Two prospective targets are discovered A new type of mineralization_porphry type of gold deposit_is found.There is great prospective potential in the ore district
基金
原国家黄金局课题
关键词
内蒙古
东伙房
金矿床
成矿预测
矿化类型
Inner Mongolia
Donghuofang
gold deposit
metallogenic prognosis
