CAJ | 학술논문

对合教铁矿床地质特征及矿床成因进行了分析，以期为矿山深部找矿和区域矿产勘查提供参考依据。合教铁矿区为南、北2个矿段，包括27条铁矿体，矿体赋存于早元古界色尔腾山群混合质斜长角闪岩中，长度约1000 m，宽度约200～300 m，矿体受地层、构造、岩浆岩等控制。通过对矿区地质特征的总结，从成矿层位、成矿构造、成矿物质来源3个方面探讨了矿床成因，认为矿床是在多阶段火山沉积环境下，经过多期构造变动、变质作用及混合岩化作用下再造生成的，矿床成因类型为前寒武纪沉积变质铁矿床。勘查实践表明，地面高精度磁测是寻找该类矿床的有效方法，也侧面证实了矿床成因分析的合理性。
대합교철광상지질특정급광상성인진행료분석，이기위광산심부조광화구역광산감사제공삼고의거。합교철광구위남、북2개광단，포괄27조철광체，광체부존우조원고계색이등산군혼합질사장각섬암중，장도약1000 m，관도약200～300 m，광체수지층、구조、암장암등공제。통과대광구지질특정적총결，종성광층위、성광구조、성광물질래원3개방면탐토료광상성인，인위광상시재다계단화산침적배경하，경과다기구조변동、변질작용급혼합암화작용하재조생성적，광상성인류형위전한무기침적변질철광상。감사실천표명，지면고정도자측시심조해류광상적유효방법，야측면증실료광상성인분석적합이성。
The main purpose of this paper is to provide reference data of geological survey and mineral exploration,by evaluating the geological characteristics and ore-genesis.Hejiao iron deposit is divided in-to the south and north sections,including 27 iron ore bodies.These ore bodies occured in hybrid amphib-olites of the early Proterozoic Seerteng group, with length 1000 m, width 200-300 m, and these ore bodies are controlled by strata, structure, magmatic rocks, etc. Based on the geological characteristics of mining area,from the aspects of ore bearing strata,tectonic and ore material source,the genesis of the deposit was discussed. It is considered that the deposit is reconstructed by multiphase tectonic move-ments,metamorphism and migmatization generated under the multi-stage volcanic sedimentary environ-ment.Genetic type is Precambrian sedimentary metamorphic iron ore deposit.Exploration practice indi-cates that the ground high-precision magnetic survey is an effective method to find the deposit and the ra-tionality of the genesis of ore deposits.