Horizontal slice taken at 21m below canal water level of electrical resistivity from all data with the Gamboa Sub-reach (turns H–J). Surface geologic information adapted from Stewart et al. (1980) and modified per information in Kirby et al. (2008) and Retallack and Kirby (2007). Boreholes are overlain on the resistivity to discern hard rock from loose sediment.
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- Electricity Resistivity
- Ground Penetrating Radar
- Seismic Methods