Croatica Chemica Acta, Vol. 79 No. 1, 2006.
Original scientific paper
Spatial Distribution of 40K and 232Th in Recent Sediments of the Krka River Estuary
Neven Cukrov
Delko Barišić
Abstract
Spatial radionuclides distribution was studied in recent estuarine sediments in the Krka River Estuary. Sediment samples were analyzed for 40K and 232Th by gamma-spectrometry. Activities of 40K were found in the range of 18–457 Bq kg–1 and activities of 232Th in range of 1.9–29.4 Bq kg–1. Distribution of 232Th activities follows that of 40K, with correlation coefficients higher than 0.97 in all analyzed samples from the Krka River estuary. Spatial distribution of natural radionuclides (40K and 232Th) in recent estuarine and marine sedimentation area can be a useful tool for recognizing the possible input of terrigenous material, as well as for fast locating of the area where such material is predominantly settled.
Keywords
Krka River Estuary; sediments; radionuclide distribution; gamma-spectrometry; 40K; 232Th
Hrčak ID:
2620
URI
Publication date:
22.4.2006.
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