CAJ | 학술논문

科洛河金矿床位于黑龙江省多宝山成矿带内，受北东向科洛河—霍龙门—西峰山韧性剪切变形带控制，金矿体呈北东向脉状、透镜状、疏缓波状赋存于韧性剪切带内，为蚀变糜棱岩型矿体。围岩蚀变主要有硅化、黄铁矿化、绢云母化、绢英岩化、绿泥石化等，为矿区重要的找矿标志。韧性剪切带控制着区内金矿床（点）的分布，在矿床范围内对矿化带、矿体的空间产状、形态和规模起决定性的控制作用，构成区域内最重要的控矿构造和赋矿构造。岩石地球化学特征表明，区域内糜棱岩、糜棱岩化花岗岩及中生代闪长（玢）岩，均富Na、Al，富集Rb、Ba、Th等大离子亲石元素（ LILE），轻微亏损Zr、Hf、Ta等高场强元素（ HFSE），强烈亏损Nb、P、Ti元素，具有典型岛弧火山岩的特征，为原始地幔演化与地壳物质混染的产物，为成矿提供了重要物源和热源，形成了典型的韧性剪切带型金矿床。
과락하금광상위우흑룡강성다보산성광대내，수북동향과락하—곽룡문—서봉산인성전절변형대공제，금광체정북동향맥상、투경상、소완파상부존우인성전절대내，위식변미릉암형광체。위암식변주요유규화、황철광화、견운모화、견영암화、록니석화등，위광구중요적조광표지。인성전절대공제착구내금광상（점）적분포，재광상범위내대광화대、광체적공간산상、형태화규모기결정성적공제작용，구성구역내최중요적공광구조화부광구조。암석지구화학특정표명，구역내미릉암、미릉암화화강암급중생대섬장（분）암，균부Na、Al，부집Rb、Ba、Th등대리자친석원소（ LILE），경미우손Zr、Hf、Ta등고장강원소（ HFSE），강렬우손Nb、P、Ti원소，구유전형도호화산암적특정，위원시지만연화여지각물질혼염적산물，위성광제공료중요물원화열원，형성료전형적인성전절대형금광상。
Keluohe Gold Deposit is located in the Duobaoshan metallogenic belt of Heilongjiang, which is con-trolled by the NE trending Keluohe-Huolongmen-Xifengshan ductile shear zone.The gold orebodies present them-selves as vein,lenticular and undulating occurrence in the ductile shear zone,forming the altered mylonite type orebod-ies.Wall rock alterations are mainly silicification,pyritization,sericitization,beresitization,and chloritization,which are good ore-prospecting criteria for the area.Ductile shear zone controlled the distribution of the gold deposits ( points) in the district.The decisive control of spatial appearance,form and scale of mineralization belts and orebodies within the deposit makes ductile shear zone the principal ore-controlling and depositing structure.The mylonite,mylonitized gran-ite and the Mesozoic diorite (porphyrite) are all chemically rich in Na and Al,enrich LILE(Rb,Ba and Th),are lightly deficient in HFSE(Zr,Hf and Ta) and strongly deficient in Nb,P,Ti,indicating the typical characteristics of is-land arc volcanic rocks that were the interactive product of primitive mantle evolution and crust materials,and the im-portant material source and heat source for mineralization.And so a typical ductile shear zone type gold deposit was formed.