黄金科学技术 ›› 2022, Vol. 30 ›› Issue (6): 822-834.doi: 10.11872/j.issn.1005-2518.2022.06.185
符安宗1(),余欣朗2,李成禄1,杨文鹏1,杨元江1,郑博1,赵瑞君1
Anzong FU1(),Xinlang YU2,Chenglu LI1,Wenpeng YANG1,Yuanjiang YANG1,Bo ZHENG1,Ruijun ZHAO1
摘要:
为探讨元素比值在金成矿预测中的应用,在收集嫩江—黑河地区1/25万区域化探数据的基础上,对数据进行标准化处理,计算Au元素与前缘晕元素和尾晕元素的比值,以及前缘晕元素与尾晕元素的比值。以(0.1~0.2)lgC对数间距绘制地球化学等值线图,分析Au元素和特征元素比值的分布特征,结合已有金矿的分布规律圈定找矿靶区。结果表明:经标准化消除量纲后,特征元素比值的平均值分布区间范围为0.60~15.58,相差不大,便于统计分析和勾绘地球化学等值线图。根据已有金矿在Au元素和特征元素比值地球化学等值线图上的分布特征,共圈定出7个成矿靶区。研究表明:将元素比值应用于金成矿预测中,取得了良好的效果,这为嫩江—黑河地区寻找金矿提供了科学依据,为区域找矿研究提供了新思路。
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