矿产与地质
礦產與地質
광산여지질
MINERAL RESOURCES AND GEOLOGY
2013年
2期
116-121
,共6页
王建平%郭明凤%王宁%韩龙
王建平%郭明鳳%王寧%韓龍
왕건평%곽명봉%왕저%한룡
铜银矿床%地质特征%偃尾山%大兴安岭
銅銀礦床%地質特徵%偃尾山%大興安嶺
동은광상%지질특정%언미산%대흥안령
Cu-Ag deposit%geological characteristic%ore-controlling factor%Yanweishan%Greater Khingan Mountains
偃尾山铜银矿床位于大兴安岭火山岩带北部,呼中-塔源多金属成矿带呼中东侧,为一中型铜银矿床。成矿元素为Cu、Ag,伴生Au。矿区位于火山穹隆构造内,矿体受NW向构造裂隙控制,以硅化角砾岩的形式产出,地表呈等间距近平行展布,主要蚀变类型有:硅化、碳酸盐化、萤石化、绢云母化及它形黄铁矿化、蒙脱石化、地开石化、绿泥石化、高岭土化、绿脱石化。矿床成因类型属高硫化浅层中-低温热液脉状矿床。
偃尾山銅銀礦床位于大興安嶺火山巖帶北部,呼中-塔源多金屬成礦帶呼中東側,為一中型銅銀礦床。成礦元素為Cu、Ag,伴生Au。礦區位于火山穹隆構造內,礦體受NW嚮構造裂隙控製,以硅化角礫巖的形式產齣,地錶呈等間距近平行展佈,主要蝕變類型有:硅化、碳痠鹽化、螢石化、絹雲母化及它形黃鐵礦化、矇脫石化、地開石化、綠泥石化、高嶺土化、綠脫石化。礦床成因類型屬高硫化淺層中-低溫熱液脈狀礦床。
언미산동은광상위우대흥안령화산암대북부,호중-탑원다금속성광대호중동측,위일중형동은광상。성광원소위Cu、Ag,반생Au。광구위우화산궁륭구조내,광체수NW향구조렬극공제,이규화각력암적형식산출,지표정등간거근평행전포,주요식변류형유:규화、탄산염화、형석화、견운모화급타형황철광화、몽탈석화、지개석화、록니석화、고령토화、록탈석화。광상성인류형속고류화천층중-저온열액맥상광상。
Yanweishan Cu-Ag deposit, a medium sized Cu-Ag deposit, is located at northern part of volcanic rock zone in Greater Khingan Mountains, and east side of Huzhong of Huzhong- Tayuan polymetallic mineralization belt. The metallogenetic elements are Cu and Ag and associated Au. The mining area is located inside the volcanic dome struc-ture, and ore bodies are controlled by north-west strike tectonic fracture and occur in the form of silicified breccia, which are distributed parallel with equal interval on the surface. The primary alteration types include silification, car-bonation, fluoritization, sericitization, and allomorphic pyritization, montmorillonization, pholiditization, chloritiza-tion, kaolinization, ungvarization. The genesis type is high sulfide shallow layer medium-low temperature hydrother-mal vein deposit.