构造叠加晕找矿法在甘肃鹰嘴山金矿床深部找矿预测中的应用
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摘要
文章对甘肃鹰嘴山金矿床地球化学特征和赋矿破碎蚀变带中成矿成晕分布分带规律进行了综合分析。矿区金的成矿作用主要伴生Ag、As、Sb、Hg、Cu、Pb、Zn等中-低温元素组合,垂向上表现出矿体上方100~200m前缘及近矿晕强异常分带指示信息,Bi、Mo、Mn、Co、Ni、Ti、W等元素强异常总体发育在矿体的下部,呈尾晕特征指示信息,以此规律构建了矿区深部盲矿预测的构造叠加晕标志。主矿段含矿蚀变带走向及倾向构造叠加晕分布特征表明,在已知主矿体(群)及外围深部出现"头尾晕叠加、反分带"等深部盲矿存在指示特征,显示深部仍存在较强的成矿热液活动信息,依据标志圈定出有利赋矿靶位,经工程验证取得良好找矿效果。
In this paper are comprehensively discussed the geochemical characteristics and zoning distribution law of ore body and the haloes in the host cataclastic alteration fault zone.The Yingzuishan gold deposit is characterized by the meso-low temperature element combination of Ag、As、Sb、Hg、Cu、Pb、Zn which are strongly zoned in vertical range 100~200 mabove the ore body to show information of head and proximal halo and element combination of Bi、Mo、Mn、Co、Ni、Ti、W bellow ore body,the information of tail halo.This is the halo distribution model of the gold deposit.Based on overprinting of head halo above the tail halo and reverse zoning of the element combinations strong hydrothermal activity and ore body is predicted to depth of the deposit and targets are located and is proved by prospecting workings.
In this paper are comprehensively discussed the geochemical characteristics and zoning distribution law of ore body and the haloes in the host cataclastic alteration fault zone.The Yingzuishan gold deposit is characterized by the meso-low temperature element combination of Ag、As、Sb、Hg、Cu、Pb、Zn which are strongly zoned in vertical range 100~200 mabove the ore body to show information of head and proximal halo and element combination of Bi、Mo、Mn、Co、Ni、Ti、W bellow ore body,the information of tail halo.This is the halo distribution model of the gold deposit.Based on overprinting of head halo above the tail halo and reverse zoning of the element combinations strong hydrothermal activity and ore body is predicted to depth of the deposit and targets are located and is proved by prospecting workings.
引文
[1]沈青杰,许文进.甘肃肃北县鹰嘴山金矿矿质来源分析及成矿模式探讨[J].甘肃地质,2011,20(1):43-51.
[2]李生栋.甘肃省鹰咀山金矿地质特征及成因[J].甘肃科技,2011,27(6):35-38.
[3]黎彤.化学元素的地球丰度[J].地球化学,1976(3):167-174.
[4]李惠,张文华,常凤池,等.大型、特大型金矿盲矿预测的原生叠加晕模型[M].北京:冶金工业出版社,1999.
[5]李惠,张国义,禹斌,等.金矿区深部盲矿预测的构造叠加晕模型及找矿效果[M].北京:地质出版社,2006.
[6]李惠,禹斌,李德亮,等.构造叠加晕找盲矿法及找矿效果[M].北京:地质出版社,2013.
[7]禹斌,李惠,李德亮,等.成矿区带构造叠加晕研究及成矿预测[M].北京:地质出版社,2011.
[8]李惠,张国义,禹斌,等.构造叠加晕找盲矿法及其在矿山深部找矿效果[J].地学前缘,2010,17(1):287-293.
[2]李生栋.甘肃省鹰咀山金矿地质特征及成因[J].甘肃科技,2011,27(6):35-38.
[3]黎彤.化学元素的地球丰度[J].地球化学,1976(3):167-174.
[4]李惠,张文华,常凤池,等.大型、特大型金矿盲矿预测的原生叠加晕模型[M].北京:冶金工业出版社,1999.
[5]李惠,张国义,禹斌,等.金矿区深部盲矿预测的构造叠加晕模型及找矿效果[M].北京:地质出版社,2006.
[6]李惠,禹斌,李德亮,等.构造叠加晕找盲矿法及找矿效果[M].北京:地质出版社,2013.
[7]禹斌,李惠,李德亮,等.成矿区带构造叠加晕研究及成矿预测[M].北京:地质出版社,2011.
[8]李惠,张国义,禹斌,等.构造叠加晕找盲矿法及其在矿山深部找矿效果[J].地学前缘,2010,17(1):287-293.