INVESTIGADORES
PERILLO Gerardo Miguel E.
artículos
Título:
A PRELIMINARY ANALYSIS OF FLAT-GRAVEL TRANSPORT OVER A SANDY BEACH, PEHUÉN CO, ARGENTINA
Autor/es:
PERILLO, G.M.E.; PERILLO, M.M.; PICCOLO, M.C.; REVOLLO SARMIENTO, G.N.; REVOLLO SARMIENTO, N.V.; ALBERDI, E.D.
Revista:
LATIN AMERICAN JOURNAL OF SEDIMENTOLOGY AND BASIN ANALYSIS
Editorial:
Asociación Argentina de Sedimentología
Referencias:
Lugar: La Plata; Año: 2011 vol. 18 p. 105 - 120
ISSN:
1669-7316
Resumen:
Pehuén Co Beach, on the southwest coast of the Buenos Aires Province (Argentina),
provides an example of an heterogeneous (mixed sand-gravel) sediment beach with gravels
of the most diverse size and origin. Over 40% of the pebbles are carbonate flat gravels.
Field observations included beach profiles, measurements of wave generated currents with
an acoustic currentmeter (ADV), videos a 5 x 5 m grid located on the swash zone during
inundation from a nearby tower. Video films where rectified and analyzed using PIV and
wavelets. Based on the results, we demonstrated that flat gravels can be easily transported
upbeach distances in excess of 5 m in about 1.5 h. This period corresponds to the high
tide situation and covering the steepest beachface segment. Wave conditions during the
experiment corresponded to low breaker height and short periods, but by no means they
could be considered as storm waves demonstrating that gravels can be transported even by
saltation during fair weather conditions.