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矿床地质  2008 

胶西北上庄金矿床原生晕轴(垂)向分带特征及深部矿体预测的勘查地球化学标志

Keywords: 地球化学,原生晕分带,深部预测标志,上庄金矿,胶西北,胶西北,矿床原生晕,分带特征,深部矿体预测,勘查,地球化学标志,Axial,golddeposit,prognosis,body,deep,indicators,geochemicalexploration,primary,characteristics,zoning,vertical,Jiaodongpeninsula,Province,验证

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Abstract:

文章应用格里格良原生晕分带指数方法,系统研究了上庄金矿单个矿体、矿区等不同取样系统的原生晕轴(垂)向分带特征.结果表明,上庄金矿床原生晕轴(垂)向分带序列及原生晕叠加模式在矿区范围内比较相似,因此,可利用典型矿体原生晕轴(垂)向分带规律来指导矿床内深部矿体的预测.适用于该矿区-750m以上的原生晕轴(垂)向分带序列为B-(HgWBi)-(AsMnCo)-Zn-(AuAg)-Pb-Mo.典型矿体原生晕叠加模式显示,沿垂直方向矿体间断部位原生晕出现头、尾晕同位叠加以及头、尾、近矿晕同位叠加2种情况,并均呈现出地球化学参数的剧烈波动.其中,前者是下部有盲矿体存在的反映,而后者则有可能既是深部有盲矿体存在,也是2个矿化带或大矿体间有小矿体存在的反映.依此认识对深部矿体开展了预测,部分靶区已获得成功验证.

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