Continuous recording of resistivity with towed arrays for systematic mapping of buried structures at shallow depths

Abstract

Since the first experiments of resistivity measurements for archaeological survey, technology has shown a considerable evolution. Electrodes moved by hand have been exchanged for towed arrays with continuous contact with the ground and automatic recording of data. The last improvements consist in the use of electrostatic quadripoles which no more need any electrical contact with the ground. The paper recalls the contribution of the Centre de Recherches Géophysiques at Garchy in this evolution during the last thirty years.