Variación estacional de las características texturales en los sedimentos intermareales del estuario de los ríos Tinto y Odiel (SO España)

The seasonal evolution in the sediment textural characteristics along the Tinto and Odiel river estuaries has been studied by means of 12 sediment traps. The fine-grained material is associated with flocculation and decantation processes that take place in the zones of saline mixing and acid neutralization of both estuaries. The bed load deposits are related with two different processes. In winter they are located in the confluence of the fluvial and tidal currents, while in spring and summer, they are redistributed by the tidal currents that deposit them in the central zones of the estuaries.