The distribution of rare earth elements (REEs) in paddy soil and rice seeds from Kočani Field (eastern Macedonia)

Rogan, Nastja and Serafimovski, Todor and Dolenec, Matej and Tasev, Goran and Dolenec, Tadej (2006) The distribution of rare earth elements (REEs) in paddy soil and rice seeds from Kočani Field (eastern Macedonia). RMZ - Materials and Geoenvironment, 53 (4). pp. 433-444. ISSN 0035-9645

Text RMZ53_0433-0444 year 2006.pdf Download (1MB)

Abstract

The concentrations of rare-earth elements (REEs) were analysed in paddy soil and rice grains collected from Kočani Field in eastern Macedonia. The results showed that the paddy soil originated from composite material mostly derived from igneous, volcanic, metamorphic and sedimentary rocks transported by the Bregalnica River and its tributaries and deposited in the Kočani depression. The elevated concentrations of heavy REEs (HREE) could be explained by the contribution of the mafc and ultramafc lithologies to the soil formation. The concentrations of REEs in unpolished rice from Kočani Field exhibited a similarly elevated HREE pattern, like paddy soils, with up to 6.6x103 times lower values compared to those in the soil. The very similar accumulation coeffcients (La - Sm) indicated no preferential fractionation of La-Sm in the rice-paddy soil system of Kočani Field.

Item Type:	Article
Subjects:	Natural sciences > Earth and related environmental sciences
Divisions:	Faculty of Natural and Technical Sciences
Depositing User:	Goran Tasev
Date Deposited:	22 Nov 2012 10:34
Last Modified:	22 Nov 2012 10:34
URI:	https://eprints.ugd.edu.mk/id/eprint/1662

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