RT Journal Article
T1 Evidencias del desequilibrio y la reorganización de la red fluvial en la cuenca de Ouarzazate (Marruecos)
T1 Evidences for a non-steady state and a reorganization of the fluvial network in the Ouarzazate basin (Morocco)
A1 Pastor, Àlvar
A1 Babault, Julien
A1 Teixell, Antonio
A1 Arboleya, María Luisa
AB Since it became externally drained, the fluvial dynamics of the Ouarzazate foreland basin has beendominated by erosive processes due to a base level fall. The basin landscape is dominated by extensiveQuaternary deposits aggraded by the transverse rivers draining the High Atlas Mountains. These depositsaccumulated in valleys and pediments incised in the basin Tertiary infill, characterized mostly by fine-grainedand soft sediments. Evidences of fluvial captures are abundant in recent times and throughout the Quaternary,in a scenario where there is more incision efficiency in the interfluves’ secondary streams (characterized byfine-grained or sediment-free pediments) than in the main transverse rivers (characterized by thick graveldeposits). Satellite imagery, elevation data and field observations demonstrate how minor streams increasetheir catchment areas by headward erosion, creating extensive pediments lying under the main rivers andproducing captures of the main rivers. This study demonstrates the unsteady-state of the drainage network ofthe Ouarzazate basin and its recent reorganization, apparently uncoupled from tectonic or climatic processes
PB Universidad de Huelva
YR 2010
FD 2010
LK http://hdl.handle.net/10272/7469
UL http://hdl.handle.net/10272/7469
LA spa
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026