陕西八卦庙金矿床深部矿体形态变化分析  

CONFORMATIONAL CHANGES OF OREBODIES AT THE DEPTH OF THE BAGUAMIAO GOLD DEPOSIT IN SHAANXI PROVINCE

作　　者：何秋生 侯满堂 

机构地区：[1]陕西凤县四方金矿有限责任公司,凤县720012 [2]陕西省地质调查院,西安710054

出　　处：《陕西地质》2009年第1期19-26,共8页Geology of Shaanxi

基　　金："十一五"国家科技支撑计划项目:中西部大型矿产基地综合勘查技术与示范-西秦岭成矿地质背景与铅锌;银;铜;金资源评价技术研究(2006BAB01A11)资助

摘　　要：陕西八卦庙金矿床1290m标高以上矿体为层状、似层状、透境状，单矿体最大厚度70．3m，金品位≥3×10^-6。62-72线长200m，宽200m范围内金品位≥2×10^-6，形状完整。从1290m标高以下矿体均分支为单脉体，厚度2～10m，地质品位≥3×10^-6，矿体形态上，下部与深部变化较大。Mineralized ores above the elevation of 1, 290m in the Baguamiao gold deposit are present in stratiform, stratoid and phacoidal shapes, in which the maximum thickness of in- dividual orebodies is 70.3m with gold grade ≥3 × 10^-6. Gold grade is ≥2 × 10^-6 within an area of 200 m long and 200 m wide bounded in between exploration lines No. 62 and No. 72. Orebodies under the elevation of 1, 290m are present in individual mineralized veins. They have a thickness ranging between 2-10 m and gold grade ≥3 × 10^-6 , which is different from the orebodies above the elevation that the gold grade is higher at line 62, middle at line 72 and poor at line 67. Some suggestions and recommendations have been made for next production through analysis of lithology, structures, alteration and macro-variation of minerals that are obtained from underground exploration and drilling.

关 键 词：八卦庙 金矿床 深部矿体 形态变化 地质特征 

分 类 号：P618.510.5[天文地球—矿床学]