North American Database of Archaeological Geophysics
North American Database of Archaeological Geophysics
Graphic/Image:
Project Name: Fort Morton (Petersburg National Battlefield), VA;
Reference: Bevan, B.W. (1996). Geophysical Exploration for Archaeology, Volume A: Archaeological Questions and Answers. Geosight Technical Report Number 4.
Bevan, B.W. (1998). Geophysical Exploration for Archaeology: An Introduction to Geophysical Exploration. Midwest Archeological Center Special Report No. 1. United States Department of the Interior, National Park Service, Midwest Archeological Center, Lincoln, Nebraska.
Magnetic gradiometer map of the Iron detail. The map has contours at intervals of 100 nT/m and 10 nT/m (broken lines).