科技视界
科技視界
과기시계
Science&Technology Vision
2014年
11期
172-174
,共3页
孟凡厚%张璞%牛飞%韩福望%金峥
孟凡厚%張璞%牛飛%韓福望%金崢
맹범후%장박%우비%한복망%금쟁
成因%找矿标志%后干沟
成因%找礦標誌%後榦溝
성인%조광표지%후간구
Genesis%Prospecting criteria%Hougangou
本文通过含矿围岩特征及矿区地质等方面探讨了内蒙古自治区卓资县后干沟银、铅多金属矿的形成原因及找矿标志。该矿矿石矿物主要以方铅矿和闪锌矿为主,矿石中伴生银、铜等元素可综合利用。脉石矿物主要为石英,方解石次之。围岩蚀变以硅化、绿泥石化为主,绢云母化和黄铁矿化次之。矿化严格受断裂构造控制,呈脉状产出,为中低温热液多金属矿床。成矿物质来源为先期岩浆热液淋滤富含多金属元素的片麻岩叠加的结果,产于中太古界集宁群片麻岩(Ar2jn)中具绿泥石化、黄铁矿化等中低温蚀变矿物组合叠加特征的断裂破碎带为良好的找矿标志。
本文通過含礦圍巖特徵及礦區地質等方麵探討瞭內矇古自治區卓資縣後榦溝銀、鉛多金屬礦的形成原因及找礦標誌。該礦礦石礦物主要以方鉛礦和閃鋅礦為主,礦石中伴生銀、銅等元素可綜閤利用。脈石礦物主要為石英,方解石次之。圍巖蝕變以硅化、綠泥石化為主,絹雲母化和黃鐵礦化次之。礦化嚴格受斷裂構造控製,呈脈狀產齣,為中低溫熱液多金屬礦床。成礦物質來源為先期巖漿熱液淋濾富含多金屬元素的片痳巖疊加的結果,產于中太古界集寧群片痳巖(Ar2jn)中具綠泥石化、黃鐵礦化等中低溫蝕變礦物組閤疊加特徵的斷裂破碎帶為良好的找礦標誌。
본문통과함광위암특정급광구지질등방면탐토료내몽고자치구탁자현후간구은、연다금속광적형성원인급조광표지。해광광석광물주요이방연광화섬자광위주,광석중반생은、동등원소가종합이용。맥석광물주요위석영,방해석차지。위암식변이규화、록니석화위주,견운모화화황철광화차지。광화엄격수단렬구조공제,정맥상산출,위중저온열액다금속광상。성광물질래원위선기암장열액림려부함다금속원소적편마암첩가적결과,산우중태고계집저군편마암(Ar2jn)중구록니석화、황철광화등중저온식변광물조합첩가특정적단렬파쇄대위량호적조광표지。
The paper discussed the genesis and prospecting criteria of Hougangou Ag-Pb ore in Zhuozixian,Inner Monglia by the characteristic of wall rocks that contained ore and regional geology.The ore minerals were mainly Galena and sphalerite,associated with Ag and Cu elements. The gangue minerals are quartz and Calcite. The wall rock alteration were silicification and chloritization,and associated with sericitization and pyritization. Mineralization was strictly controlled by construction and lied out as veins,which was Low temperature hydrothermal polymetallic deposit.The source of metallogenic material was a result of gneiss leached by early magmatic hydrotherm,lied in the middle Archean Jining group gneiss.A combination of middle to low temperature alteration as pyritization and chloritization in fracture zone was a sign of prospecting criteria.