The hydrographic basin of Rio Quequén Grande (Argentine) occupies 10.000 Km2 of the south-east area of the Buenos Aires province, in the area "pampeana bonaerense", located in the bigger area of Argentine loess, between latitude 20° and 40°South. The area of the basin is for the 97,5 % flat and, thanks to the abundance of water resources and the fertility of the soil, it has been interested by the intensification of agriculture which made of it, in the last decades, one of the greater areas of food supplying on worldwide scale. Through sedimentological, chemical and petrographic analysis, this study provides informations on the quality of river sediments, from source to mouth of Rio Quequén Grande. A comparison of the results with those obtained in the 2002 campaign, has allowed an assessment, after somthe e time, about problems of pollution due to storage of heavy metals such as Pb, V and Zn, and salinity phenomena.
Geochemical characterization of sediment quality in the river basin of the Rio Grande Quequén (Argentina)
MARIN, Emanuela;MARROCCHINO, Elena;VACCARO, Carmela
2012
Abstract
The hydrographic basin of Rio Quequén Grande (Argentine) occupies 10.000 Km2 of the south-east area of the Buenos Aires province, in the area "pampeana bonaerense", located in the bigger area of Argentine loess, between latitude 20° and 40°South. The area of the basin is for the 97,5 % flat and, thanks to the abundance of water resources and the fertility of the soil, it has been interested by the intensification of agriculture which made of it, in the last decades, one of the greater areas of food supplying on worldwide scale. Through sedimentological, chemical and petrographic analysis, this study provides informations on the quality of river sediments, from source to mouth of Rio Quequén Grande. A comparison of the results with those obtained in the 2002 campaign, has allowed an assessment, after somthe e time, about problems of pollution due to storage of heavy metals such as Pb, V and Zn, and salinity phenomena.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
