Mineralogical study of arsenic-enriched aquifer sediments at Santiago del Estero, northwest Argentina

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Authors

ŠRÁČEK Ondřej NOVÁK Milan SULOVSKÝ Petr MARTIN Raul BUNDSCHUH Jochen BHATTACHARYA Prosun

Year of publication 2006
Type Article in Proceedings
Conference Natural Arsenic in Groundwaters of Latin America
MU Faculty or unit

Faculty of Science

Citation
Field Geology and mineralogy
Keywords arsenic; loess; pampa; Argentina;
Description Sediments from aquifer contaminated by arsenic at Santiago del Estero, norhwest Argentina, were investigated using several mineralogical methods. Probable source of arsenic is volcanic glass in pampean loess. Ferric oxyhydroxides coatings are very limited and, thus, adsorption capacity for arsenic is low. Competition with other oxyanions further reduces arsenic adsorption.
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