North American Database of Archaeological Geophysics

Image Library (by geophysical survey type): Self Potential

(to view an enlargement of a graphic, click on it)

Project images sorted alphabetically by state or country; within each by site name

IOWA

Effigy Mounds National Monument (1)

Measurements of soil voltage using two different types of electrodes;

Corrections to the self-potential measurements acquired with plaster electrodes;

VIRGINIA

Fort Morton (Petersburg National Battlefield)

Soil voltages at the Iron detail;		A self-potential profile across the main fortification trench;		A self-potential profile across the Bombproof detail;
A self-potential map made over the Iron detail area;

Taylor House (Petersburg National Battlefield)

A self-potential survey across the cellar of the Taylor House;

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