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Malczewski, D., L. Teper, G. Lizurek & J. Dorda (2005). In situ gamma-ray spectroscopy in common rock raw materials mined in Krakow vicinity, Poland. In: Naturally occurring radioactive materials (NORM IV), IAEA-TECDOC-1472. International Atomic Energy Agency, Vienna, 368-376.

Abstract

The natural radioactivity of 40K, 208Tl, 212Pb, 212Bi, 214Pb, 214Bi, 228Ac and the fallout of 137Cs in common rock raw materials mined in Krakow vicinity were measured in situ using a portable gamma-ray spectrometry workstation. The measurement points were chosen for different regional rocks in: Devonian and Jurassic limestones, dolomite, trachyandesite, porphyry, porphyry tuff, diabase and melaphyre. 40K activity varied in the range from about 82 Bqkg-1 (Jurassic limestone) to 3150 Bqkg-1 (porphyry tuff). The activity concentrations associated with 228Ac (232Th series) varied in the range from 9 Bqkg-1 (Jurassic limestone) to 56 Bqkg-1 (porphyry tuff), whereas activity of 226Ra (238U series) ranged from about 13 Bqkg-1 (Jurassic limestone) to 43 Bqkg-1 (Devonian limestone). The highest deposition of 137Cs
(20 kBqm-2) was recorded in Devonian limestone.