Caracterización de unidades de progradación litoral mediante georradarla playa de Carchuna (Granada, SE de España)

  1. Javier Rey 1
  2. Julián Martínez 2
  3. Mª Carmen Hidalgo 1
  4. Rosendo Mendoza 2
  5. Mª José Campos 1
  1. 1 Dpto. de Geología. EPS de Linares, Universidad de Jaén
  2. 2 Dpto. de Ingeniería Mecánica y Minera. EPS de Linares, Universidad de Jaén
Revista:
Geogaceta

ISSN: 0213-683X

Año de publicación: 2020

Número: 67

Páginas: 95-98

Tipo: Artículo

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Otras publicaciones en: Geogaceta

Resumen

This paper analyses the internal structures of the progradational units developed in Carchuna Beach (Granada, SE Spain) after the maximum Holocene transgression. Geophysical prospecting techni-ques have been used, in particular ground-penetrating radar, with 100 and 250 MHz shielded antennas. The limitation of the method in penetration depth has been conditioned by the position of the water table (which attenuates the signal) and the saturation in seawater of the sediments at the shoreline (which prevents the penetration of the electromagnetic wave). The study has allowed us to detect typical sedimentary structures of progradation of coastal dunes towards the SE, linked to a regressive pulse. Laminations associated with foreset and topset were identified. In the area closest to the shoreline, lami-nations sloping towards the sea appear, characterizing the actual foreshore area

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