吉林地质
吉林地質
길임지질
JILIN GEOLOGY
2013年
4期
43-46
,共4页
阿荣旗兴胜金矿%地质特征%大兴安岭中段%蚀变破碎带
阿榮旂興勝金礦%地質特徵%大興安嶺中段%蝕變破碎帶
아영기흥성금광%지질특정%대흥안령중단%식변파쇄대
Xinsheng gold deposit of Arong Banner%geological characteristics%middle part of Greater Khingan Range%altered fractured zone
兴胜岩金矿处于大兴安岭中段东西向金银钼成矿带上,位于火山盆地边缘隆起带,火山期后热液活动强烈,构造都很发育,控制着矿(化)体的分布。火山期后次火山岩、花岗斑岩、似斑状花岗闪长岩和闪长岩等岩浆热液活动是重要的成矿热源,成矿与近东西向次级构造有关,矿体产于蚀变破碎带石英脉及蚀变角砾岩中。通过对金矿床地质特征及矿床成因分析,认为构造、岩浆活动在成矿过程中起着重要作用,对大兴安岭中段东坡找矿起到指导作用,明确了本区找矿方向。
興勝巖金礦處于大興安嶺中段東西嚮金銀鉬成礦帶上,位于火山盆地邊緣隆起帶,火山期後熱液活動彊烈,構造都很髮育,控製著礦(化)體的分佈。火山期後次火山巖、花崗斑巖、似斑狀花崗閃長巖和閃長巖等巖漿熱液活動是重要的成礦熱源,成礦與近東西嚮次級構造有關,礦體產于蝕變破碎帶石英脈及蝕變角礫巖中。通過對金礦床地質特徵及礦床成因分析,認為構造、巖漿活動在成礦過程中起著重要作用,對大興安嶺中段東坡找礦起到指導作用,明確瞭本區找礦方嚮。
흥성암금광처우대흥안령중단동서향금은목성광대상,위우화산분지변연륭기대,화산기후열액활동강렬,구조도흔발육,공제착광(화)체적분포。화산기후차화산암、화강반암、사반상화강섬장암화섬장암등암장열액활동시중요적성광열원,성광여근동서향차급구조유관,광체산우식변파쇄대석영맥급식변각력암중。통과대금광상지질특정급광상성인분석,인위구조、암장활동재성광과정중기착중요작용,대대흥안령중단동파조광기도지도작용,명학료본구조광방향。
Xingsheng primary gold deposit in Arong Banner of the Inner Mongolia is located in the EW gold, silver and molybdenum mineralization belt, middle part of Greater Khingan Range, it is located in the margin uplift belt of volcanic basin , postvolcanic hydrothermal activities were strong, structures are developed, they control the distribution of ore mineralization body. Postvolcanic volcanics, granite porphyry, porphyritic granodiorite and granodiorite magma hydrothermal activity are an important metallogenic heat source, mineralization had relation to the EW secondary structure, the ore bodies occur in quartz vein of altered fractured zone and altered breccia. Through the analysis on the geological features and genesis of gold deposit, it is considered that the tectonic and magmatic activity play an important role in the mineralization process, the mineral prospecting in the middle part of Greater Khingan Range on the east slopes plays a guiding role, the prospecting target shows clearly in this area.