Portal de Periódicos da CAPES

Morfodinámica y evolución reciente de playa Tunquén, Chile central

2009; University of Valparaíso; Volume: 44; Issue: 1 Linguagem: Inglês

10.4067/s0718-19572009000100021

0718-1957

Carolina Martı́nez, Sergio Salinas,

Coastal wetland ecosystem dynamics

The morphodynamic of Tunquen beach, distal zone of Algarrobo headland bay, central Chile, and its relationship with both, the relative shoreline changes in the mid-term scale and pocket beach conditions, are presented.Tunquen is an intermediate high-energy beach, with transverse bar and rip.A rhythmic topography produced by equidistant megacusps is associated to swash circulations patterns (horn divergent).Sediments correspond to a well classified medium to coarse sand.During the last 45 years, the relative position of the shoreline has shown small variability (± 50 m).This embayment presents stable conditions associated to the shoreline changes and the determined beach type.