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August 2012 Volume 1 Issue
5
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Vrhovnik P
Dolenec M
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Gobal Advanced Research Journal
of Environmental Science and Toxicology (GARJEST) ISSN:
2315-5140
August 2012 Vol. 1(5), pp. 097-109
Copyright © 2012 Global Advanced Research Journals
Full Length
Research Paper
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The distribution of Rare Earth Elements (REE) in
surficial lake sediments before and after tailings
dam failure (FYR Macedonia)
Petra Vrhovnik1*, Nastja Rogan Šmuc1,
Tadej Dolenec1, Todor Serafimovski2
and Matej Dolenec1
1Faculty
of Natural Sciences and Engineering, University of
Ljubljana, Department of Geology, Aškerčeva cesta
12,1000 Ljubljana, Slovenia
2Faculty
of Mining, Geology and Polytechnics, University
“Goce Delčev–Štip”, Goce Delčev 89, 2000 Štip,
Macedonia
*Corresponding Author E-mail:
petra.vrhovnik@ntf.uni-lj.si,
petra.vrhovnik@gmail.com; Tel: 0038614704620,
Fax: +38614704560
Accepted 20 July, 2012
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Abstract |
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The concentration and distribution of rare earth
elements (REEs) in the surficial lake sediments of
Lake Kalimanci were studied in an attempt to
establish the reasons for their enrichment. Results
indicate that REE are tightly related to the
catchment geology. Possible anthropogenic effects
were evaluated by employing an enrichment factor,
which revealed that the surficial sediments from
Lake Kalimanci have a natural origin with a minor
enrichment of the defined REE. Sequential extraction
analysis revealed that REE in the surficial
sediments of Lake Kalimanci are predominantly
bounded to the exchangeable fraction and therefore
highly bio available for living organisms.
Keywords:
REE, Surficial lake sediment, Enrichment factor,
Sequential extraction procedure
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