Gamma-ray data as a tool for examining geochemical landscapes

Task Contact: Joseph Duval

Task Objectives

The U.S. Geological Survey tested sample design, sample collection, and analytical protocols for conducting a soil geochemical survey of North America. Airborne gamma-ray data existed in all the pilot study areas considered to test these protocols. Radioelement maps for each pilot area helped guide sample collection and design. The objective of this task was to produce maps and information on radioelelement distribution in selected pilot study areas. The maps and informaion helpd test sampling designs and map stability.

Products

Reports

Duval, J.S., 2005, Aerial Gamma-ray Survey for Parts of Cameron, Hildalgo, and Willacy Counties, Texas: U.S. Geological Survey Open-File Report 2005-1231. Available online at: http://pubs.usgs.gov/of/2005/1231/.
Duval, J.S., 2005, Aerial gamma-ray, Landsat TM, and digital elevation data, Big Bend area, Texas: U.S. Geological Survey Open-File Report 2005-1371. Available online at: http://pubs.usgs.gov/of/2005/1371/.
Duval, J.S., 2005, Radon in soils of parts of Cameron, Hidalgo, and Willacy Counties, Texas: U.S. Geological Survey Open-File Report 2005-1423. Available online at: http://pubs.usgs.gov/of/2005/1423/.
Duval, J.S., Carson, J.M., Holman, P.B., and Darnley, A.G., 2005, Terrestrial radioactivity and gamma-ray exposure in the United States and Canada: U.S. Geological Survey Open-File Report 2005-1413. Available online at: http://pubs.usgs.gov/of/2005/1413/.

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