Electrical Imaging at the Sapelo Island Shell Ring

The electrical resistivity pseudosection provides information about variation in soil moisture content and texture at multiple depths along a vertical axis through the ground. A series of pseudosections were collected on Ring 3 at the Sapelo Island Shell Ring site. These show both horizontal and vertical changes in the ring composition. Two-dimensional inversion of these pseudosections suggests that Ring 3 is made up of discrete concentrations of shell rather than layered shell ani soil.