CAJ | 학술논문

大水金矿床是近几年在西秦岭地区新发现的一个国内外十分罕见的矿化特征极为独特的金矿床.本次研究通过蚀变岩石物质组分迁移计算分析,自矿体中心向两侧或远离破碎带,蚀变强度减弱.矿化蚀变带内SiO2明显富集,CaO、CO2明显迁出,Fe2O3也有所富集,说明金矿化与硅化、方解石化和赤(褐)铁矿化关系密切,Au矿化强度与Sb、Ba成正相关而与Sr、Pb成负相关,可作为找矿的直接标志,围岩蚀变带的规模和强度可间接指示金矿化的规模及强度,对于在大水金矿区指导找矿、提高金矿成矿预测能力有着极其重要的意义,用此作为地球化学找矿研究,具有指导找矿的实用意义.
대수금광상시근궤년재서진령지구신발현적일개국내외십분한견적광화특정겁위독특적금광상.본차연구통과식변암석물질조분천이계산분석,자광체중심향량측혹원리파쇄대,식변강도감약.광화식변대내SiO2명현부집,CaO、CO2명현천출,Fe2O3야유소부집,설명금광화여규화、방해석화화적(갈)철광화관계밀절,Au광화강도여Sb、Ba성정상관이여Sr、Pb성부상관,가작위조광적직접표지,위암식변대적규모화강도가간접지시금광화적규모급강도,대우재대수금광구지도조광、제고금광성광예측능력유착겁기중요적의의,용차작위지구화학조광연구,구유지도조광적실용의의.
Dashui gold deposit,a new type of deposit recently discovered in west Qinling tectonic belt,has very unique ore-forming characteristics. The alteration intensity has a direct genetic association with structural belts.It is significantly enriched with SiO2 and Fe2O3,while the CaO and CO2 obviously reduced which indicating that the gold mineralization is closely related to silicification,carbonation,and hematitization.The intensity of Au mineralization has a positive correlation with Sb and Ba,while a negative correlation with Sr and Pb,that can be used as a direct indicator of gold prospecting.The scale and intensity of wall-rock alteration zone can be an indirect indicator of the scale and intensity of the gold mineralization,which has great significance in searching veins and forecasting concealed orebodies.