Photograph used for a story in the Oklahoma Times newspaper. Caption: "Larry W. Cowan"

Final report analyzing aerial gamma ray and magnetic data in the Louisville quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Final report analyzing aerial gamma ray and magnetic data in the Cincinnati quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Abstract: Dissolved constituents in seepage from fly-ash settling ponds bordering part of the Indiana Dunes National Lakeshore (the Lakeshore) have increased trace elements, and gross alpha and gross beta radioactivity in the ground water and surface water downgradient from the settling ponds. Data suggest that concentrations of some dissolved trace elements may be greater beneath interdunal pond 2 than in the pond. The soil system downgradient from the settling ponds seems to have affected the concentrations of dissolved ions in the settling-ponds than in the ponds. Where organic material was present downgradient from the settling ponds, concentrations of arsenic, fluoride, molybdenum, potassium, sulfate, and strontium were greater in the ground water than in the ponds. In contrast, the concentrations of cadmium, copper, nickel, aluminum, cobalt, lead, and zinc were less.

A report regarding an aerial gamma-ray and magnetic survey of the Munice Quadrangle, Indiana and Ohio

Final report analyzing aerial gamma ray and magnetic data in the Indianapolis quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Indianapolis quadrangle in Indiana and Illinois.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Indianapolis quadrangle in Indiana and Illinois.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Cincinnati quadrangle in Indiana, Ohio, and Kentucky.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Cincinnati quadrangle in Indiana, Ohio, and Kentucky.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Louisville quadrangle in Indiana, Ohio, and Kentucky.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Louisville quadrangle in Indiana, Ohio, and Kentucky.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Danville quadrangle in Indiana and Illinois.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Danville quadrangle in Indiana and Illinois.

Single record data listings taken during aerial gamma-ray and magnetic surveys of the Fort Wayne quadrangle in Indiana, Ohio, and Michigan.

Average record data listings taken during aerial gamma-ray and magnetic surveys of the Fort Wayne quadrangle in Indiana, Ohio, and Michigan.