CAJ | 학술논문

河北省兴隆县陡子峪铁矿是近年新发现的一个鞍山式铁矿，区内太古界迁西群上亚群跑马场组(Arp)地层中发现磁铁主矿体5条，次要矿体及矿化体众多。磁铁矿体规模较小且分布零散，但数量较多。通过对本区控矿因素进行分析，认为赋矿围岩岩性多为由基性火山岩变质而成的角闪斜长片麻岩(局部麻粒岩)，原岩中沉积岩的发育程度较低，而鞍山式铁矿与原岩中沉积岩的发育程度正相关，从而导致形成的磁铁矿规模小、厚度薄、层数多、矿体零散。
하북성흥륭현두자욕철광시근년신발현적일개안산식철광，구내태고계천서군상아군포마장조(Arp)지층중발현자철주광체5조，차요광체급광화체음다。자철광체규모교소차분포령산，단수량교다。통과대본구공광인소진행분석，인위부광위암암성다위유기성화산암변질이성적각섬사장편마암(국부마립암)，원암중침적암적발육정도교저，이안산식철광여원암중침적암적발육정도정상관，종이도치형성적자철광규모소、후도박、층수다、광체령산。
Douziyu Fe deposit in Xinglong of Hebei is an Anshan-type iron deposit which is discovered in re-cent years.In this area,5 main magnetite orebodies and other many minor ores body and mineralized bodies are found in Paomachang Formation of upper sub-group of Qianxi Group of Archean Erathem.The discov-ered magnetite orebodies are small-scaled and scattered,but are numerous in amount.Through the analysis of ore-controlling factors in the area,it is believed that the host wall rock is mainly the amphibole plagiog-neiss (partly granulite)converted from basic volcanic rock,and sedimentary rock in protolith is poorly devel-oped.Because the development level of Anshan type iron ore is positively related to that of sedimentary rock in protolith,the magnetite is small-scaled,thin,multi-layered and scattered.