智利月亮山铁铜矿岩矿磁化率与密度关系分析

摘要

以磁性测量为主,密度测量为辅的技术方法,研究智利月亮山铁铜矿区岩矿磁化率与密度关系,认为该区岩矿可分为磁(赤)铁矿型、含铜磁铁矿型、赤铁矿(镜铁矿)型、角砾岩型,岩矿的磁化率和密度、TFe含量基本上呈正相关关系,TFe含量越大,磁化率越高,密度越大,TFe含量越小,磁化率越低,密度越小.在月亮山矿区以后的找矿工作中,对磁(赤)铁矿、含铜磁铁矿等高密度、高磁化率异常以及黄铁矿、镜铁矿等高密度、低磁化率异常进行圈定,定位找矿靶区,是一个很好的勘查手段.%With the magnetic measurements as main method and the density as auxiliary one,the paper studies the relationship between susceptibility and density of iron-copper ore in the Moon Mountain iron copper deposit in Chile,it is considered that the rock and ore in the area can be divided into four categories:magnetite (hematite) type,copper-bearing magnetite type,hematite (specularite) type and breccia type; the magnetic susceptibility of the ore show a positive correlation with its density and TFe content in the area.The higher TFe content is,the greater magnetic susceptibility and density will;The lower TFe content is,the lower magnetic susceptibility and density will be.In the later prospecting work in the Moon Mountain mining area,the abnormal zone with high density and high magnetic susceptibility of magnetite (hematite) and copper-bearing magnetite,and the abnormal zone with high density and low magnetic susceptibility of hematite and specularite are delineated to position the prospecting target area,which is an excellent prospecting method.