Spatial distribution of K-40 and Th-232 in recent sediments of the Krka River Estuary

Cukrov, Neven; Barišić, Delko (2006) Spatial distribution of K-40 and Th-232 in recent sediments of the Krka River Estuary. Croatica Chemica Acta, 79 (1). pp. 115-118. ISSN 0011-1643

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Abstract

Spatial radionuclides distribution was studied in recent estuarine sediments in the Krka River Estuary. Sediment samples were analyzed for K-40 and Th-232 by gamma-spectrometry. Activities of K-40 were found in the range of 18-457 Bq kg(-1) and activities of Th-232 in range of 1.9-29.4 Bq kg(-1). Distribution of Th-232 activities follows that of K-40, with correlation coefficients higher than 0.97 in all analyzed samples from the Krka River estuary. Spatial distribution of natural radionuclides (K-40 and Th-232) 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.

Item Type:	Article
Uncontrolled Keywords:	Krka River Estuary; sediments; radionuclide distribution; gamma-spectrometry; K-40; 232Th; thorium; uranium
Subjects:	NATURAL SCIENCES > Chemistry
Divisions:	Division for Marine and Enviromental Research
Projects:	Project title Project leader Project code Project type Radionuklidi u prirodnim sustavima Delko Barišić 0098128 MZOS Fizikalna i biogeo-kemija tragova metala u vodenim sustavima Ivanka Pižeta 0098121 MZOS Geokemija recentnih i starih sedimentacijskih sustava Jadranske platforme Goran Kniewald 0098132 MZOS
Depositing User:	Neven Cukrov
Date Deposited:	30 Oct 2013 09:23
URI:	http://fulir.irb.hr/id/eprint/868

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