Marine resistivity – Sediment Accumulation in Patagonia Lake

Marine resistivity for subbottom profiling using the streaming resistivity method. An example is presented below that shows a continuous resistivity profile across the Patagonia Lake in southern Arizona. The near surface water conductivity is approximately 30 ohm-m and below the lake’s bottom is high and low resistivity values representing loose sediments and competent granitic bedrock. High sediment accumulation can be seen in the valleys between bedrock highs and thicker towards the inlet (beginning of the line).