RT Journal Article
T1 Características hidroquímicas de la cuenca del rio Andalgalá (Provincia de Catamarca, República Argentina)
T1 Hydrochemistry characteristics of the Andalgalá river basin (province of Catamarca, Argentina)
A1 Cisternas, M.
A1 Olías Álvarez, Manuel
A1 Hidalgo, M.
AB The hydrochemistry characteristics of the Andalgalá river basin (province of Catamarca, Argentina) areanalyzed in the present study. In this zone there are metal sulphide deposits which could generate acidmine drainage (AMD). The analyzed information has come fundamentally from the Program of Quality ofWater of the companies that have explored the zone since 1995. Many of the records of water qualityanalyzed included systematic errors and have been discarded. Two types of hydrochemistry facies areobserved: 1) in the Minas subbasin, where the sulphide deposits outcrop, the water is sulphate calcium,with low values of pH and elevated concentrations of metals due to a natural process of sulphide oxidation(acid rock drainage or ARD) and 2) in the rest of the basin the water is bicarbonate calcium type, with alow alkalinity due to the carbonated mineral absence in the zone. Due to the lower flow, the acidcontribution of the Minas river is neutralized when mixing with other tributaries, so that when coming outof the river basin the water quality is acceptable. However, an increase in the acidity transported by theMinas river by the exploitation of sulphide deposits could jeopardize the current water uses, includingsupplying a population of 14,000 inhabitants
YR 2008
FD 2008
LK http://hdl.handle.net/10272/8229
UL http://hdl.handle.net/10272/8229
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026