INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
Lithological and hydrological controls on water composition: evaporite dissolution and glacial weathering in the south central Andes of Argentina (33-34° S)
LEÓN JG; PEDROZO, F.L.
JOHN WILEY & SONS LTD
Lugar: Londres; Año: 2014
Lithological and hydrological influence on fluvial physical and chemical erosion was studied in a glacierized sedimentary basin with high evaporite presence. Suspended particulate matter (SPM), total dissolved solids (TDS) and major ion concentrations were analyzed for two years of different hydrologic condition: i) 2009-2010, Q = 100% average; and ii) 2010-2011, Q = 60% average. Annual hydrograph was simple regime ? type with one peak in summer related to snow melting. The intra-annual SPM and TDS variations were directly and inversely associated to Q, respectively. Snow chemistry showed continental influence (Na+/Ca2+=0.17) and atmospheric input of TDS was