Building up stages of a Mediterranean delta: Climatic changes and anthropogenic forcing in the Adra River delta | Episodios de construcción de un delta mediterráneo: Cambio climático y modificaciones antropogénicas en el delta del río Adra
2015
Bárcenas-Gascón, P. (Patricia) | Lobo, F.J. (Francisco J.) | Fernández-Salas, L.M. (Luis Miguel) | Mendes, I. | López-González, N. (Nieves) | Macías, J. | Vázquez, J.T. (Juan Tomás) | Díaz-del-Río-Español, V. (Víctor)
English. The evolutionary stages of the submarine delta off the Adra River are investigated in thisstudy, under the context of climatic fluctuations entangled with increasing human activities andinterventions in the drainage basins and adjacent shores during the Middle to Late Holocene. Toachieve that goal, we used an extensive database comprising a set of bathymetric data coveringdifferent time slices, a dense grid of high-resolution seismic data and several sediment corescollected in the two submarine lobes of the Adra River delta. Two main evolutionary phases can beidentified. The first one extended through most of the construction history and was mediated bymajor climatic events at the Mediterranean scale; this phase included three major progradationalevents occurring during the Mid Holocene, the Roman time and the Little Ice Age. The most recentphase is strongly determined by human modifications of the fluvial channels, and resulted in adrastic transformation of the submarine sedimentary environment.
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