CAJ | 학술논문

库布苏金矿床位于野马泉地块南缘火山岩浆弧带，东准噶尔褶皱带中部，是区域内较典型的蚀变岩型金矿床。区内出露地层主要是中泥盆统托让格库都克组的一套浅变质火山碎屑岩，矿体产于破碎的蚀变闪长玢岩脉及边侧破碎蚀变带中。与成矿有关的蚀变主要是硅化、毒砂-磁黄铁矿化和绿泥石化。稀土、微量元素研究表明，矿体和围岩具壳幔混熔特点，元素分布曲线的一致性暗示二者可能为同一岩浆活动产物。金矿成矿主要受蚀变闪长玢岩脉及NWW向脆韧性变形构造带两种因素控制。结合矿化富集规律，建立库布苏金矿成矿模式，认为金矿主体属与构造-岩浆活动有关的中酸性侵入体接触带型金矿。
고포소금광상위우야마천지괴남연화산암장호대，동준갈이습추대중부，시구역내교전형적식변암형금광상。구내출로지층주요시중니분통탁양격고도극조적일투천변질화산쇄설암，광체산우파쇄적식변섬장분암맥급변측파쇄식변대중。여성광유관적식변주요시규화、독사-자황철광화화록니석화。희토、미량원소연구표명，광체화위암구각만혼용특점，원소분포곡선적일치성암시이자가능위동일암장활동산물。금광성광주요수식변섬장분암맥급NWW향취인성변형구조대량충인소공제。결합광화부집규률，건립고포소금광성광모식，인위금광주체속여구조-암장활동유관적중산성침입체접촉대형금광。
The Kubusu gold deposit is located in the volcanic magamatic rock arc zone of the southern edge of Yemaquan block,middle part of East Junggar fold belt of Junggar fold system.The major emergence stratums within the area are epimetamorphic sedimentary clastic rocks of Tuoranggekuduke Formation,Middle Devonian.Orebodies occur in fractured and altered diorite- porphyrite dyke and altered fracture zone around.The dominant alterations related to gold mineralization are silicification, arsenopyrite- pyritization and chloritization.The reseach of REE and trace elements shows that ore-bearing rock-bodies and the correlative dike rock both have the feature of Crust-mantle type granite,and probably from the same magmatism.Gold mineralization is mainly affected by two factors,the alteration diorite-porphy-rite vein and the NWW trending ductile-brittle deformation tectonic belt. According to these analysis, the type of ore gen-esis of Kubusu gold deposit belongs to acid intrusive contact zone type which is related to tectonic-magmatic activity.