Uran, uranprospektering og uranmineralisering i Norge

SKRIFTER
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51
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Forfattere
Lindahl, Ingvar
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Utgivelsesår
1984
Publikasjonstype
Utgivelsesår
1984
Summary
Following a short historical review of uranium prospecting in Norway, most of which has been done by the Geological Survey of Norway, a simplified description is given of radioactivity, radiation, instruments and methods of measurements, and the dangers to health from naturally occurring radioactive sources. The main part of the paper concerns a description of uranium prospecting in Norway. The different methods used by the Geological Survey and the areas surveyed by each method are described, comments are given on each prospecting method used. Geological modelling in prospecting is based on a knowledge of the geological environment of known deposits and on parallels drawn with known uranium provinces, especially those in the Nordic countries Sweden and Finland. Only a few per cent of Norway's land area has been covered by radiometric airborne (helicopter) surveys of sufficient quality. More than half of the country has been surveyed by car, i.e. areas where measurements have been made along all the available roads. Geochemical methods have been used, mainly stream sediment sampling, with reasonably good results. Extensive areas have been covered but with uneven and mostly low ampling densities. All work up to 1983 is included in the overview. A short description of the main uranium mineralizations, including literature references, is presented.
Tilgjengelig
NGU-biblioteket