安徽拂晓地区地物化特征及找矿意义

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拂晓地区位于苏鲁超高压变质带安徽段的张八岭地区,地质构造条件与山东段的胶东金矿矿集区类似,具有较好的成矿地质条件和找矿前景。为探索拂晓地区金矿找矿前景,本次研究系统开展地物化工作,以面积性的磁法、化探异常为依据,圈定隐伏岩体范围,提供多目标的直接找矿信息,减小找矿范围,预测出两个重点找矿远景区。在重点找矿远景区内,部署了两条可控源音频大地电磁和频谱激电剖面对重点区域的深部纵向结构特征进行探索。综合研究拂晓地区的地物化资料,提出以“弱磁异常-化探异常中心-中等强度的电性异常”为特征的物化探找矿标志;“煌斑岩
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