1887

Abstract

On a test site (Ravières, France) used as physical model for. several geophysical methods, we have performed surface and borehole RADAR experiments It is a quarry of hard limestone (er=16) in which a vertical and an horizontal boreholes were drilled (Fig . 1). These investigations veere achieved with the Ekko- 3 and the RAMAC systems . The good results obtained on surface in a previous acquisition lead us to try acquiring radar data in the boreholes (Figs . 2 and 3) .

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/content/papers/10.3997/2214-4609.201410468
1992-06-01
2020-09-29
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