AMT法勘查贵州铝土矿

Geophysical and Geochemical Exploration(2015)

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Abstract
贵州铝土矿资源储量丰厚,分布面广,但多为隐伏型沉积型矿,仅有的易辨别、易发现的地表或浅层铝土矿已经开发殆尽,在此开展隐伏铝土矿的物探方法试验研究对今后勘查工作具有重要的指导意义。本文简要介绍了AMT基本工作方法以及贵州金沙长沟工区的地质和地球物理特征,重点讨论了AMT在长沟工区铝土矿勘查中的应用效果,通过对电阻率断面图的综合推断解释,划分出了二叠系、石炭系、寒武系之间地层界面,圈出了含矿有利部位。经钻孔验证,取得了较好的找矿效果。
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Key words
AMT,Guizhou bauxite,stratigraphic boundary,mineral exploration,concealed sedimentary deposit,resistivity
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