1∶25万宣城幅(安徽境内)水系沉积物元素地球化学特征及其在侵入岩体判别上的应用
Mineral Exploration（2019）
Abstract
水系沉积物地球化学测量获得的数据在基础地质研究中可发挥重要作用.通过对1∶25万宣城幅(安徽境内)水系沉积物元素地球化学特征进行研究,获得了宣城幅元素平均值、背景值、标准离差、变异系数等地球化学参数以及区域上的富集特征.花岗岩类水系沉积物继承了其母岩富高场强元素贫相容元素的地球化学特征,以此为基础构建了推断花岗岩类侵入体的地球化学模型,利用该模型绘制的地球化学图中的高值区界线与宣城幅内花岗岩类侵入体的地表出露范围十分吻合,从而验证了地球化学推断花岗岩类侵入体模型的可行性,并进一步预测了可能存在花岗岩类侵入体的地区及分布范围.
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