Arsenic-contamination source of groundwater from the Salí basin, Argentina

Quaternary loess deposits, reworked by fluvial and aeolian processes, filled the Salí River basin in Tucumán Province, Argentina, and are the source of high concentrations of As, F, V, B, U and Mo in shallow groundwaters. The average chemical composition of loess is similar to that of a dacite and i...

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Detalles Bibliográficos
Autores principales: Nicolli, H.B., Tineo, A., García, J.W., Falcón, C.M., Merino, M.H., Etchichury, M.C., Alonso, M.S., Tofalo, O.R.
Formato: CONF
Materias:
Aeolian process
Argentina
Chemical compositions
Desorption process
Glass shards
High concentration
K-feldspar
River basins
Shallow groundwater
Volcanic origin
Arsenic
Desorption
Feldspar
Groundwater
Quartz
Weathering
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_97804154_v2_n_p979_Nicolli
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:Quaternary loess deposits, reworked by fluvial and aeolian processes, filled the Salí River basin in Tucumán Province, Argentina, and are the source of high concentrations of As, F, V, B, U and Mo in shallow groundwaters. The average chemical composition of loess is similar to that of a dacite and it exhibits many components of volcanic origin (mainly plagioclases, quartz, K-feldspar and glass shards). Sorption and desorption processes onto the surface of Fe- and Al-oxides regulate the distribution of trace elements and their mobility in the basin. © 2007 Taylor & Francis Group, London.

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