广东怀集高凤矿区地球化学特征

    Geochemical characteristics of the Gaofeng mining area in Huaiji County, Guangdong Province

    • 摘要: 对高凤矿区地球化学特征研究表明,高凤矿区金矿床有以下分布规律:①金矿床元素基本组合为Au、As、Pb、Zn、Co,伴生元素为Ag、Bi、Mo、Cu、Sb等,w( Co)/w( Ni)值可作为寻找隐伏含矿带的依据。②高凤矿区两个矿床的微量元素相关组合关系不同,高凤金矿床是以石英脉型矿化为主,微量元素相关组合为Au、As、Bi、Cu、Sb、(Co、Ni);邓屋金矿床是以石英复脉网脉型矿化为主,微量元素相关组合为Au、As、Pb、Zn、Cu、(Co、Ni)。③利用格里戈良法得出高凤矿区垂直分带特征为:矿前晕Pb?Zn?Ag—矿中晕As?Au?Cu?Ni—矿尾晕Bi?Mo?Co。这些地球化学特征为矿区深部和周边地区找矿提供了依据。

       

      Abstract: A study of the geochemical characteristics of the Gaofeng mining area shows that the gold deposit has the following regulari?ties:(1) The element combination is composed of Au, As, Pb, Zn, Co, the accompanying elements include Ag, Bi Mo, Cu, Sb etc., and the Co/Ni ratios can be used as a basis in search for concealed ore belt. (2) The combinations of trace elements in the two deposits of the Gaofeng mining area are different, the main mineralization of Gaofeng is of the quartz vein type, the combination of trace elements is composed of Au, As, Pb, Zn, Cu, ( Co, Ni); the Dengwu gold deposit is of quartz vein complex stockwork mineraliza?tion, and the combination of trace elements comprises Au, As, Pb, Zn, Cu, (Co, Ni). (3) The Geligeliang method reveals that ver?tical zoning of the Gaofeng mining area is characterized byPb-Zn-Agfor pre-ore halo,As-Au-Cu-Nifor ore halo, andBi-Mo-Cofor post-ore halo. These geochemical characteristics provide a basis for deep and peripheral prospecting.

       

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