青海同仁德合龙洼铜金矿床成矿预测

通过分析德合龙洼铜金矿床区域地质、矿床地质特征,利用钻孔岩心样品分析微量元素分布规律,运用1∶5 000原生晕确定多元素组合异常规律,对矿区进行成矿预测。研究表明,钻孔ZK01-1的前晕元素、中晕元素和尾晕元素均指示出该孔-210m处的强矿化区段,说明其微量元素的分布对成矿作用具有较好的指示意义;从原生晕地球化学特征可知,在矿体的东北部、西北部极有可能存在隐伏矿体,在矿区的东北角和西南部也有可能存在隐伏矿体;因子分析中成矿元素在主因子F3和F1均有较高的因子载荷,说明本区的成矿作用是多阶段多成因的。通过综合研究确定3个找矿预测靶区,为矿山进一步开展找矿工作提供了重要依据。

Metallogenic prognosis of the Dehelongwa copper-gold deposit, Tongren, Qinghai Province

Based on the regional geology, deposit geology of the Dehelongwa copper-gold deposit, trace element distribution pattern of the drill core samples and multi-element combination anomly pattrern of primary halo suirvey at scale 1:5000, metallogenic prognosis is made for the deposit area. At drill hole ZK01-1 the head halo elements, the middle halo and tail elements all point to the strong mineralization at -210 m indicating good sense of prognosis of the distribution of trace elements. According to geochemical characteristics of the primary halo blind ore bodies may occur in the northeast and northwest of the ore body and northeast and northwest corners of the property. the main factor F₃ and f1 of ore-forming elements have a higher factor loading indicating that mineralization in this area is in multi-stages and multiple genesis. Through comprehensive study three targets are predicted for further prospecting.