Sedimentological characteristics of subtropical plain rivers in relation whith the hydrologycal cycle (Chaco, Argentina)

SARTIRANA, MARTA C; SUAREZ, PAOLA A.

Tucuman

Conferencia; 9th. International Conference on Fluvial Sedimentology; 2009

Univ. Nac. de Tucuman - Fundacion Miguel Lillo

The Chaco-Pampa plain is a large morphological unit located in the Northeastern region of Argentina. A series of local fluvial networks were developed in the Eastern region that present two important fluvial subsystems named "Amores" y "Oro" diferentiated by its genesis and morphologic evolution. The studied region, including these small rivers, presents particular characteristics related to the small slope and subtropical climate. This contribution presents a Hydrosedimentologyc characterization of each subsystem in order to generate information about general features of the region and its relation to the anual variation of the rain-fall.