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AEM processed survey data

Mississippi Alluvial Plain, November 2018 - February 2019


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Burton, B.L., Minsley, B.J., Bloss, B.R., and Kress, W.H., 2021, Airborne electromagnetic, magnetic, and radiometric survey of the Mississippi Alluvial Plain, November 2018 - February 2019: U.S. Geological Survey data release,


Airborne electromagnetic (AEM), magnetic, and radiometric data were acquired November 2018 to February 2019 along 16,816 line-kilometers (line-km) over the Mississippi Alluvial Plain (MAP). Data were acquired by CGG Canada Services, Ltd. with three different helicopter-borne sensors: the CGG Canada Services, Ltd. Resolve frequency-domain AEM instrument that is used to map subsurface geologic structure at depths up to 100 meters, depending on the subsurface resistivity; a Scintrex CS-3 cesium vapor magnetometer that detects changes in deep (hundreds of meters to kilometers) geologic structure based on variations in the magnetic properties of different formations; and a Radiation Solutions RS-500 spectrometer that detects the abundance [...]


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MAP_RegionalResolve_2019_DataDictionary_AEMProcessedData.csv 2.81 KB text/csv
MAP_RegionalResolve_2019_AEMProcessedData.csv 101.02 MB text/csv


These data were collected to contribute high-resolution information about subsurface geologic structure that will be used to inform hydrologic models, water resource infrastructure studies, and local decision making concerning the Mississippi River Valley alluvial aquifer.

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