River channel confluences are ubiquitous features of all fluvial networks & represent sites of complex, three-dimensional flow & sediment dynamics.
Sediment supply, relative to fluvial transport capacity, has therefore a potentially decisive effect on the erosive power of any bedrock river.
The fluvial facies dominates the basal sediment portion that is overlain by an aeolian interval.
It is the central fluvial artery of Brazil, running from south to north for a distance of about 150o m.
Relating fluvial processes (erosion, transport and deposition) to the formation of fluvial landforms.