黄金
黃金
황금
GOLD JOURNAL
2015年
2期
21-24
,共4页
孙宁%孔凡乾%韦龙明%翁海蛟
孫寧%孔凡乾%韋龍明%翁海蛟
손저%공범건%위룡명%옹해교
八卦庙金矿床%石英脉%成矿期次%矿床成因类型
八卦廟金礦床%石英脈%成礦期次%礦床成因類型
팔괘묘금광상%석영맥%성광기차%광상성인류형
Baguamiao Gold Deposit%quartz vein%metallogenic stages%genesis type of deposits
八卦庙金矿床是赋存于热水沉积岩系中,并受二里河—八卦庙脆-韧性剪切带构造控制的大型金矿床,矿体严格产出在2期石英脉中及其附近。通过对矿区内2期石英脉的研究,将成矿期次初步划分为(早期) NW向石英脉成矿期、(晚期) NE 向石英脉成矿期,早期成矿于190~230 Ma,晚期集中在125~130 Ma。综合研究认为,八卦庙金矿床成因类型应为热水沉积-改造型金矿床。
八卦廟金礦床是賦存于熱水沉積巖繫中,併受二裏河—八卦廟脆-韌性剪切帶構造控製的大型金礦床,礦體嚴格產齣在2期石英脈中及其附近。通過對礦區內2期石英脈的研究,將成礦期次初步劃分為(早期) NW嚮石英脈成礦期、(晚期) NE 嚮石英脈成礦期,早期成礦于190~230 Ma,晚期集中在125~130 Ma。綜閤研究認為,八卦廟金礦床成因類型應為熱水沉積-改造型金礦床。
팔괘묘금광상시부존우열수침적암계중,병수이리하—팔괘묘취-인성전절대구조공제적대형금광상,광체엄격산출재2기석영맥중급기부근。통과대광구내2기석영맥적연구,장성광기차초보화분위(조기) NW향석영맥성광기、(만기) NE 향석영맥성광기,조기성광우190~230 Ma,만기집중재125~130 Ma。종합연구인위,팔괘묘금광상성인류형응위열수침적-개조형금광상。
Baguamiao Gold Deposit occurs in the hydrothermal-sedimentary rocks and is a large scale gold de-posit controlled by the Erlihe-Baguamiao brittle-ductile shear zone.The ore output is confined in the two quartz veins and their vicinity strictly.Based on the research of the two quartz veins,the metallogenic stages are classified into NW quartz vein mineralization ( early stage) and NE quartz vein mineralization ( late stage) .The early mineralization was formed between 190-230 Ma,and the late between 125-130 Ma.By analyzing the type of deposit,the paper takes that the Baguamiao is hydrothermal-sedimentary transformation type gold deposit.