Holocene evolution of the Xagó dune field (Asturias, NW Spain) reconstructed by means of morphological mapping and ground penetrating radar surveys

G. Flor-Blanco, D. Rubio-Melendi, G. Flor, J.P. Fernández-Álvarez, D.W.T. Jackson

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In the aeolian dune field of Xagó, morphological mapping and GPR profiles were obtained to propose an evolutionary sequence that was significantly more accurate than what can be inferred from surficial morphologies studies alone. Three successive dune sets were identified: inner (climbing dunes), middle (large transverse ridge and minor elongated dunes) and outer fields (foredune with lee-projection dunes and incipient foredune). The falling sea level since the Flandrian transgression to the present is deduced from the relative position of the dunes, including a prograding tendency. Long intervals of stabilisation are interspersed, during which each dune set is built, and the GPR records reveal that a period of erosion processes occurred in the southern middle field with a subsequent accretion. These results demonstrate the progradation and erosion processes during the Holocene evolution of the dune field, which can be extrapolated to dune fields with the same characteristics in these latitudes.Xagó is one of the places where, stratigraphically, reflectors reveal an erosive surface representing the intermediate event of transgressive or standstill sea level previously undetected.
LanguageEnglish
Pages35-50
JournalGeo-Marine Letters
Volume36
Issue number(1)
DOIs
Publication statusAccepted/In press - 6 Jan 2016

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Ground penetrating radar systems
dune field
Sea level
ground penetrating radar
dune
Erosion
Radar
Holocene
Stabilization
sea level
Flandrian
erosion
progradation
transgression
stabilization
accretion

Keywords

  • Holocene dune evolution GPR Xago Astuarius Spain

Cite this

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title = "Holocene evolution of the Xag{\'o} dune field (Asturias, NW Spain) reconstructed by means of morphological mapping and ground penetrating radar surveys",
abstract = "In the aeolian dune field of Xag{\'o}, morphological mapping and GPR profiles were obtained to propose an evolutionary sequence that was significantly more accurate than what can be inferred from surficial morphologies studies alone. Three successive dune sets were identified: inner (climbing dunes), middle (large transverse ridge and minor elongated dunes) and outer fields (foredune with lee-projection dunes and incipient foredune). The falling sea level since the Flandrian transgression to the present is deduced from the relative position of the dunes, including a prograding tendency. Long intervals of stabilisation are interspersed, during which each dune set is built, and the GPR records reveal that a period of erosion processes occurred in the southern middle field with a subsequent accretion. These results demonstrate the progradation and erosion processes during the Holocene evolution of the dune field, which can be extrapolated to dune fields with the same characteristics in these latitudes.Xag{\'o} is one of the places where, stratigraphically, reflectors reveal an erosive surface representing the intermediate event of transgressive or standstill sea level previously undetected.",
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Holocene evolution of the Xagó dune field (Asturias, NW Spain) reconstructed by means of morphological mapping and ground penetrating radar surveys. / Flor-Blanco, G.; Rubio-Melendi, D.; Flor, G.; Fernández-Álvarez, J.P.; Jackson, D.W.T.

In: Geo-Marine Letters, Vol. 36, No. (1), 06.01.2016, p. 35-50.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Holocene evolution of the Xagó dune field (Asturias, NW Spain) reconstructed by means of morphological mapping and ground penetrating radar surveys

AU - Flor-Blanco, G.

AU - Rubio-Melendi, D.

AU - Flor, G.

AU - Fernández-Álvarez, J.P.

AU - Jackson, D.W.T.

PY - 2016/1/6

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N2 - In the aeolian dune field of Xagó, morphological mapping and GPR profiles were obtained to propose an evolutionary sequence that was significantly more accurate than what can be inferred from surficial morphologies studies alone. Three successive dune sets were identified: inner (climbing dunes), middle (large transverse ridge and minor elongated dunes) and outer fields (foredune with lee-projection dunes and incipient foredune). The falling sea level since the Flandrian transgression to the present is deduced from the relative position of the dunes, including a prograding tendency. Long intervals of stabilisation are interspersed, during which each dune set is built, and the GPR records reveal that a period of erosion processes occurred in the southern middle field with a subsequent accretion. These results demonstrate the progradation and erosion processes during the Holocene evolution of the dune field, which can be extrapolated to dune fields with the same characteristics in these latitudes.Xagó is one of the places where, stratigraphically, reflectors reveal an erosive surface representing the intermediate event of transgressive or standstill sea level previously undetected.

AB - In the aeolian dune field of Xagó, morphological mapping and GPR profiles were obtained to propose an evolutionary sequence that was significantly more accurate than what can be inferred from surficial morphologies studies alone. Three successive dune sets were identified: inner (climbing dunes), middle (large transverse ridge and minor elongated dunes) and outer fields (foredune with lee-projection dunes and incipient foredune). The falling sea level since the Flandrian transgression to the present is deduced from the relative position of the dunes, including a prograding tendency. Long intervals of stabilisation are interspersed, during which each dune set is built, and the GPR records reveal that a period of erosion processes occurred in the southern middle field with a subsequent accretion. These results demonstrate the progradation and erosion processes during the Holocene evolution of the dune field, which can be extrapolated to dune fields with the same characteristics in these latitudes.Xagó is one of the places where, stratigraphically, reflectors reveal an erosive surface representing the intermediate event of transgressive or standstill sea level previously undetected.

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