Resistivity Survey
A resistivity survey measures the resistance of the soil to electricity
by passing a current through the soil. Walls and rubble will offer
high resistance to the electric current, whilst conversely features
filled with soil, such as pits and ditches, can offer lower resistance
than normal. A resistivity survey can therefore read and map the
presence of such features.
Archaeology South-East has staff skilled in undertaking such
surveys and reading the results obtained. The technique is not
without its limitations: it is very dependant on the weather,
since very dry and wet conditions will adversely affect the results;
and surveys can be slow and the results difficult to interpret.
Different sites have different requirements, but ASE usually prefers
to undertake resistivity surveys in conjunction with a more rapid
magnetometry survey.
Contact: Darryl
Palmer
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