North American Database of Archaeological Geophysics
North American Database of Archaeological Geophysics
Graphic/Image:
Project Name: San Lorenzo, Veracruz, Mexico;
Reference: Breiner, S. and M.D. Coe. (1972). Magnetic Exploration of the Olmec Civilization. American Scientist. 60:566-575 (used with permission).
Total magnetic intensity contour map over a buried Olmec Altar (Monument 51). The altar caused the prominent anomaly in the center indicated by the rectangular block. Other anomalies are caused by neighboring small monuments. The map represents an area approximately 50 meters on a side.