矿产与地质
礦產與地質
광산여지질
MINERAL RESOURCES AND GEOLOGY
2013年
6期
441-444,458
,共5页
黄宣浩%孔凡全%李刚%汤静如
黃宣浩%孔凡全%李剛%湯靜如
황선호%공범전%리강%탕정여
铅锌矿%剪切带型矿脉%破碎带型矿脉%控矿断裂
鉛鋅礦%剪切帶型礦脈%破碎帶型礦脈%控礦斷裂
연자광%전절대형광맥%파쇄대형광맥%공광단렬
Pb-Zn deposit%shear belt type vein%shatter belt type vein%ore-controlling fracture
柚子坪铅锌矿的主要矿体是受 F1断裂控制的脉状矿床,其单脉的成矿构造可分为剪切带型与破碎带型两种类型。破碎带型矿脉多呈不规则状、囊状,空间分布与断裂破碎带一致,矿化不均匀且品位低;剪切带型矿脉多呈透镜状,其成矿构造具有平行复脉、脉中脉及矿液压裂等特征,矿化较富集且品位高。工业矿体是由多个破碎带型或剪切型单脉组成的脉群。认为 F1断层既是导矿构造,又是储矿构造,多期次的构造运动是形成上述构造特征的主要原因。
柚子坪鉛鋅礦的主要礦體是受 F1斷裂控製的脈狀礦床,其單脈的成礦構造可分為剪切帶型與破碎帶型兩種類型。破碎帶型礦脈多呈不規則狀、囊狀,空間分佈與斷裂破碎帶一緻,礦化不均勻且品位低;剪切帶型礦脈多呈透鏡狀,其成礦構造具有平行複脈、脈中脈及礦液壓裂等特徵,礦化較富集且品位高。工業礦體是由多箇破碎帶型或剪切型單脈組成的脈群。認為 F1斷層既是導礦構造,又是儲礦構造,多期次的構造運動是形成上述構造特徵的主要原因。
유자평연자광적주요광체시수 F1단렬공제적맥상광상,기단맥적성광구조가분위전절대형여파쇄대형량충류형。파쇄대형광맥다정불규칙상、낭상,공간분포여단렬파쇄대일치,광화불균균차품위저;전절대형광맥다정투경상,기성광구조구유평행복맥、맥중맥급광액압렬등특정,광화교부집차품위고。공업광체시유다개파쇄대형혹전절형단맥조성적맥군。인위 F1단층기시도광구조,우시저광구조,다기차적구조운동시형성상술구조특정적주요원인。
The maj or ore-bodies in Youziping Pb-Zn deposit are vein deposit that controlled by fault F1 ,the metallotectonics of its single vein can be divided into shear belt type and shatter belt type.Shatter belt type vein is in irregular shape or chambered shape,and its spatial pattern is in line with fault and shatter belt,and the mineralization is uneven and low graded.Shear belt type vein is in lenticular shape,and its metallotec-tonics is characterized by parallel composite veins,vein in vein and hydraulic pressure crack,and the mineral-ization is enriched and high graded.The industrial ore-bodies are vein groups which consist of multiple shat-ter belt type and shear belt vein type single veins.It is believed that fault F1 is both an ore conducting struc-ture and an ore hosting structure,and multiphase tectonic activity is the maj or cause of above-mentioned characteristics.