马来半岛地区New Discovery金矿地球化学特征及意义  

作　　者：郭辉[1] 邹海洋[1] 陈磊[1] 陈侃[1] 

机构地区：[1]中南大学有色金属成矿预测教育部重点实验室地球科学与信息物理学院,长沙410083

出　　处：《西部资源》2014年第6期81-85,共5页Western Resources

摘　　要：本文对马来半岛中央金成矿带北段的New Discovery金矿地球化学特征进行了分析。主要得出:主量元素特征表明该矿床火山碎屑岩为钙碱性铝过饱和系列岩石。微量元素表明可将13种元素分成4个组合:Cr、Co、Cu、Sc、W、Ba;Pb、Ag、Zn;Sb、Ni;Bi、Mo。第一组合为成矿成晕组合,第二组合为多金属矿化组合,第三组合为硫化物蚀变组合;元素组合也对应于不同的矿化阶段。稀土元素分析结果表明,该岩石属轻稀土富集型,铕弱负异常。稀土配分曲线为平缓的右倾。New Discovery金矿床的原岩为中性火山岩,且形成于岛弧——活动大陆边缘区域。Geochemical characteristics of the New Discovery gold deposit that located in the northern section of the central gold metallogenic belt of Malaysia were studied in this paper, and the following conclusions have been reached： Characteristics of main elements shows that volcanic clastic rock of this deposit were calcium and aluminium-alkaline oversaturated rock series. Trace elements shows that 13 kinds of elements can be divided into four combinations： namely Cr, Ba, Co, Cu, Sc, W; Pb, Ag, Zn; Sb, Ni; Bi, Mo. The first combination is ore forming and halo-forming elements, the second combination polymetallic mineralized elements and the third combination is the elements related to sulphide. These combinations are also related to different mineralization stages. REE analysis shows that the rock is characteristic by rich LREE, with little Eu anomaly. Meanwhile, the REE distribution curves incline gendy to the right. The New Discovery gold deposit＇s original rock was neutral volcanic rock, and formed in a continental margin arc-activity area.

关 键 词：金矿床 地球化学 构造环境 NEW DISCOVERY 

分 类 号：P618.51[天文地球—矿床学]