CAJ | 학술논문

石门沟钼矿辉钼矿（化）特征为燕山晚期由基性岩浆底侵作用而形成的二长花岗岩体和地表出露的的厚大石英脉体全岩含矿。分析了河南西峡县石门沟钼矿成因机理与成矿模式。认为石门沟辉钼矿化二长花岗岩是下地壳物质部分熔融作用形成的富含Mo元素的花岗质岩浆，由基性向酸性正向演化，后经岩浆结晶分异、同化混染作用，钼（钨）等金属矿物以熔离状态分布在岩浆矿房中；岩浆热液沿构造薄弱带上升到地壳浅部后，富水热流体分离，进入气成热液阶段，形成高中温纵横交错含钼脉体或含钼花岗岩体。石门沟钼矿成因类型为岩浆型、热液充填石英脉型辉钼矿床，与斑岩型有明显区别。
석문구목광휘목광（화）특정위연산만기유기성암장저침작용이형성적이장화강암체화지표출로적적후대석영맥체전암함광。분석료하남서협현석문구목광성인궤리여성광모식。인위석문구휘목광화이장화강암시하지각물질부분용융작용형성적부함Mo원소적화강질암장，유기성향산성정향연화，후경암장결정분이、동화혼염작용，목（오）등금속광물이용리상태분포재암장광방중；암장열액연구조박약대상승도지각천부후，부수열류체분리，진입기성열액계단，형성고중온종횡교착함목맥체혹함목화강암체。석문구목광성인류형위암장형、열액충전석영맥형휘목광상，여반암형유명현구별。
Molybdenite mineralization in the molybdenum ore at Shimengou （Xixia county, Henan province） is characterized by a mass of monzonitic granite formed by basic magma underplated during the late Yanshanian, and by a thick, large quartz-vein body of whole-rock ore exposed at the surface. This article examines the mechanism of molybdenum formation and a model for metallogenesis for the Shimengou ore. The molybdenite mineralization in the monzonitic granite is rich in Mo. The granitic magma was formed by partial melting of lower-crust material, which evolved from basic composition to acidic. The molybdenum （tungsten） and other metallic minerals became concentrated in the ore magma after the effects of magmatic crystallization differentiation and hybrid assimilation. The magmatic hydrothermal fluid rose into the shallow crust along structurally weak belts, and the fluid then separated and evolved into a pneumatolytic hydrothermal stage, forming the molybdenum-vein body and molybdenum granite rock mass at moderate-high temperatures. The genetic types of molybdenum ore in Shimengou are the magma type and the hydrothermal-filling quartz-vein type molybdenite deposits. These contrast with the porphyry type of ore genesis.