North American Database of Archaeological Geophysics

Image Library (by archaeological site type): Prehistoric/Native Ceremonial Complex

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Project images sorted alphabetically by state or country; within each by site name and geophysical survey type

Conductivity GPR Induced Polarization Magnetic Magnetic susceptibility Metal detector Multiple Methods Seismic Refraction Self Potential Resistance/Resistivity

ARKANSAS

Toltec Mounds Archeological State Park (3LN42), (1)

Magnetic image, Toltec Site, AR;   Magnetic image, Toltec Site, AR;    

Toltec Mounds Archeological State Park (3LN42), (2)

Magnetic gradiometry results in the area of Mound G showing a distribution of ferrous metal debris probably from an historic occupation;   Electrical resistivity results at a depth of 75 cm showing the loci of 1985 excavations and a circular anomaly at Toltec Mounds, AR;   Electrical resistivity results at a depth of 50 cm in the area of Mound G;
Magnetic susceptibility and resistivity results in the area of Mound G. A number of oval features, probably cultural, are indicated;   Soil conductivity results results in the area of Mound G showing a metallic debris field probably associated with an historic occupation;   Magnetic susceptibility and resistivity results in the area of Mound G. A number of oval features, probably cultural, are indicated;

 

ILLINOIS

Cahokia Mounds State Historic Site (1)

The average resistivity at each sounding;   An analysis of the resistivity soundings;   A plot of the resistivity pseudosection;
Conductivity measurements on lines 1 and 2;   Conductivity measurements on lines 3 and 4;   Azimuthal seismic refraction measurements at location 1;

Cahokia Mounds State Historic Site (2)

EM31 transects across a well-defined mound;   EM conductivity map of the Grand Plaza prepared using Surfer (version 3.0);    

Cahokia Mounds State Historic Site (3)

Surfer contour map of magnetic data.   Surfer contour map of resistivity data.   GEOPLOT shade relief plot of resistance data.

 

MISSISSIPPI

Hollywood Mounds Site (22TU500)

Magnetic gradiometer survey of the Hollywood site with contour overlay;   Magnetic gradiometer image of a Mississippian period wall trench house;   Conductivity survey of the Hollywood site with contour overlay;

Gradiometer data superimposed on the conductivity data;

  

Ground penetrating radar profile along 150E line between 150S and 200S;

    

 

OHIO

Hopeton Works Enclosure (Hopewell Culture National Historical Park)

Line plot of magnetic susceptibility and elevation data;        

Conductivity GPR Induced Polarization Magnetic Magnetic susceptibility Metal detector Multiple Methods Seismic Refraction Self Potential Resistance/Resistivity

PUERTO RICO

Tibes

Resistivity image of north grids showing the location of trails and a possible house feature;   Analytical hillshading of resistivity data from west4 grids, with identified anomalies;   Resistivity image of west4 grids with identified anomalies;
Resistivity image of eastern grids with identified anomalies;        

MEXICO

San Lorenzo

Total magnetic intensity contour map over a buried Olmec Altar (Monument 51);   Contour map of the magnetic intensity over a colossal Olmec head (Monument 61) that was buried at a depth of approximately 5 meters;   Contour map of total magnetic intensity of a grid containing a colossal Olmec head (Monument 53);
Total magnetic intensity contour map and perspective view of contoured data over an area described as a "workshop";        

Teotihuacan

Total field magnetic anomaly map surveyed to the west of the Pyramid of the Sun;   Total field magnetic anomaly map reduced to the pole and a three-dimensional representation both from a grid surveyed to the west of the Pyramid of the Sun;   Total field magnetic anomaly map surveyed to the east of the Pyramid of the Sun;
Three-dimensional view of total field magnetic data reduced to the pole from a grid surveyed to the east of the Pyramid of the Sun;   Resistivity and magnetic profiles of TEO-1;   Resistivity and magnetic profiles of TEO-4;
Resistivity and magnetic profiles of TEO-5;        

Conductivity GPR Induced Polarization Magnetic Magnetic susceptibility Metal detector Multiple Methods Seismic Refraction Self Potential Resistance/Resistivity

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