Aerial gamma ray and magnetic survey, Indianapolis quadrangle, Indiana and Illinois. Final report

Technical Report · Sun Mar 01 04:00:00 EST 1981

OSTI ID:6538785

The Indianapolis quadrangle of Indiana and Illinois covers 7500 square miles of largely agricultural land within the eastern Midwestern Physiographic Province. Moderate to thick sections of Paleozoic rocks are largely masked by overlying Quaternary glacial deposits that represent several Pleistocene glacial advances. No uranium deposits are known in the quadrangle. Though 99 anomalies were defined by the interpretation process, all appeared to be culturally induced. One small group of anomalies overlying strip mines in Pennsylvanian coal deposits have unusually high uranium concentration levels and are thus noteworthy. Magnetic data appear to be largely in agreement with present structural interpretations, though some other structures are suggested that may be complexities in the Precambrian basement.

• Research Organization: EG and G GeoMetrics, Sunnyvale, CA (USA)
• DOE Contract Number: AC13-76GJ01664
• OSTI ID: 6538785
• Report Number(s): GJBX-97(81)
• Country of Publication: United States
• Language: English

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