North American Database of Archaeological Geophysics
North American Database of Archaeological Geophysics
Database Report:
Site Name: Cahokia Mounds State Historic Site (1); Site Number: _____; County: Madison; State: IL; Country: USA; Ownership: State; Landform: Mississippi River Floodplain;
Date of Site: AD 800-1600s; Period Type: Prehistoric; Culture: Mississippian; Site Type: Fortified Settlement/Mounds; Site Size: at least 14 sq km;
Survey Type: Electrical Resistivity Sounding;
Instrument: Gossen Model Geohm 3; Sampling Interval: 5 sounding locations with electrode lines radiating from the center of each sounding location; electrode lines were separated by 10 or 20 degrees; Prospecting Depth: 0.2, 0.5, 1, 2, 5, and 10 m; Area Surveyed: _____; Date of Survey: 10-Feb-1997 to 12-Feb-1997; Land Cover Type: Grassland; Ground Truthing: No;
Graphics/Imagery:
 An
analysis of the resistivity soundings; |
Survey Type: Electrical Resistivity Pseudosection;
Instrument: Gossen Model Geohm 3; Sampling Interval: 100 m transect; readings taken every meter; Prospecting Depth: 1-14 m; Area Surveyed: _____; Date of Survey: 14-Feb-1997; Land Cover Type: Grassland; Ground Truthing: No;
Graphics/Imagery:
Survey Type: Electromagnetic Conductivity;
Instrument: Geonics Ltd. EM31; Sampling Interval: 5 directional study locations, readings taken at 1 degree intervals as the instrument was rotated in the center of each location; 9 transects x 0.5 m; Prospecting Depth: to 6 m; Area Surveyed: _____; Date of Survey: 13-Feb-1997; Land Cover Type: Grassland; Ground Truthing: No;
Graphics/Imagery:
 Conductivity
measurements on lines 3 and 4; |
Survey Type: Seismic Refraction;
Instrument: Geometrics Model ES-1225; Sampling Interval: Azimuthal measurements at 2 locations; 12 geophones were spaced 1 m apart in lines radiating from the center (impact point) of each study location; geophone lines were separated by 45 degrees; Prospecting Depth: _____; Area Surveyed: _____; Date of Survey: 1-May-1997; Land Cover Type: Grassland; Ground Truthing: No;
Graphics/Imagery:
Project Name: Cahokia Mounds State Historic Site, IL (1);
Reference: Dalan, R.A. and B.W. Bevan (1998). Directionality of Geophysical Parameters as an Indicator of Cultural and Natural Deposits: Experiments at the Cahokia Mounds Site. Office of Contract Archaeology, Southern Illinois University at Edwardsville, Edwardsville, Illinois. Geosight, Pitman, New Jersey. Submitted to Illinois Historic Preservation Agency, Springfield, Illinois.
Survey by: Rinita A. Dalan, Office of Contract Archaeology, Box 1458, Southern Illinois University at Edwardsville, Edwardsville, IL 62026, Bruce W. Bevan, Geosight, P.O. Box 135, Pitman, NJ 08071.
Survey for: Illinois Historic Preservation Agency;
Report Location: Illinois Historic Preservation Agency; Report Type: CRM Report;
