title: Natural radioactivity in rocks of the Modane-Aussois region (SE France).
abstract: The activity concentrations of40K,232Th, and238U in the characteristic rocks of the Modane-Aussois region (Western Alps, France) were determined using an HPGe gamma-ray spectrometry system. The activity concentrations of40K varied from 18 Bqkg-1(limestone dolomite) to 392 Bqkg-1(calcschist), while those of232Th varied from 0.7 Bqkg-1(limestone dolomite) to 18 Bqkg-1(calcschist). The activities associated with238U ranged from 9 (quartzite) to 29 Bqkg-1(dolomite). In the investigated rock samples, concentrations of238U (ppm) and40K (%) had a strong negative correlation.
authors.affiliation: Faculty of Earth Sciences, University of Silesia, Będzińska 60, 41-200 Sosnowiec, Poland.
authors.forename: Dariusz
authors.initials: D
authors.lastname: Malczewski
authors.affiliation: Faculty of Earth Sciences, University of Silesia, Będzińska 60, 41-200 Sosnowiec, Poland.
authors.forename: Jerzy
authors.initials: J
authors.lastname: Żaba
keywords: Carbonate rocks; Potassium-40; Quartzite; Thorium; Uranium