黄金
黃金
황금
GOLD JOURNAL
2014年
12期
22-25
,共4页
小西南岔金铜矿床%赋存状态%嵌存状态%载金矿物
小西南岔金銅礦床%賦存狀態%嵌存狀態%載金礦物
소서남차금동광상%부존상태%감존상태%재금광물
Xiaoxinancha Copper -Gold Deposit%occurrence status%embedding status%gold-bearing minerals
小西南岔金铜矿床属次火山—斑岩型矿床,矿化类型主要为浸染型和硫化物方解石石英脉型。通过电子探针及显微镜下分析,结果表明,矿石中金矿物主要为自然金、银金矿;金矿物形态复杂多样,以显微金和细粒金为主;金矿物的嵌存状态以包裹金、粒间金为主。金主要富集于硫化物方解石石英脉中,在空间上金多分布在矿体中上部。
小西南岔金銅礦床屬次火山—斑巖型礦床,礦化類型主要為浸染型和硫化物方解石石英脈型。通過電子探針及顯微鏡下分析,結果錶明,礦石中金礦物主要為自然金、銀金礦;金礦物形態複雜多樣,以顯微金和細粒金為主;金礦物的嵌存狀態以包裹金、粒間金為主。金主要富集于硫化物方解石石英脈中,在空間上金多分佈在礦體中上部。
소서남차금동광상속차화산—반암형광상,광화류형주요위침염형화류화물방해석석영맥형。통과전자탐침급현미경하분석,결과표명,광석중금광물주요위자연금、은금광;금광물형태복잡다양,이현미금화세립금위주;금광물적감존상태이포과금、립간금위주。금주요부집우류화물방해석석영맥중,재공간상금다분포재광체중상부。
Xiaoxinancha Copper -Gold Deposit is a secondary volcanic-porphyry type deposit .The mineralization type is mainly dissemination and sulfide calcite quartz vein type .Electronic probe and microscope analyses show that gold minerals mainly take the form of native gold and electrum;gold minerals are complex ,dominated by micro gold and fine particle gold;gold minerals are embedded as locked gold and intergranular gold .Gold is primarily enriched in sulfide calcite quartz veins and is spatially deposited in the middle and upper part of orebodies .