Quantification of fluvial incision in the Duero Basin (NW Iberia) from longitudinal profile analysis and terrestrial cosmogenic nuclide concentrations

Antón, Loreto; Rodés, Ángel; Muñoz, Gerardo de Vicente; Pallàs, Raimón; García‐Castellanos, Daniel; Stuart, Finlay M.; Braucher, Régis; Bourlès, Didier

doi:10.1016/j.geomorph.2011.12.036

Cited by 59 publications

(46 citation statements)

References 55 publications

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“…The distribution of the events of the seismic sequence could be related the Esla fault. This fault is a NNE-SSW trending segment where the Esla River is deeply incised (Antón et al 2011). In this region NNE-SSW lineations are wide recognized (Figs.…”

Section: The Western Fringe Of the Cenozoic Duero Basin And The "Muelmentioning

confidence: 87%

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Seismicity and potencially active faults in the Northwest and Central-West Iberian Peninsula

Martín-González

Antón

Arévalo

et al. 2012

Journal of Iberian Geology

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The Northwest and Central-West Iberian Peninsula configure an intraplate area far from the active plate boundaries, where the Variscan basement crops out extensively (Iberian Massif). This area of the Iberian Peninsula has been traditionally considered a seismically stable region; however, it presents a moderate intraplate seismicity which indicates the presence of active structures and the occurrence of potentially damaging earthquakes. The scarcity of Mesozoic and Cenozoic deposits makes very difficult to track the record of the more recent tectonic activity and the characterization of active tectonic structures within the Iberian Massif. Nevertheless the seismic sequences of 1995-1997 in Lugo (5.1 mb; IV) and 2003 in Zamora (4.2 Mw) provided important information about the orientation of the present stress tensor, and the distribution of the hypocenters informed about the rupture geometry of the fault planes. The present work integrates geological, geomorphological, structural, and seismological data in order to define the main potentially active faults in the region. Faults trending NE-SW to N-S are potentially active as strike-slip, in some cases with a reverse component, under a NW-SE to N-S compression.

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Section: The Western Fringe Of the Cenozoic Duero Basin And The "Muelmentioning

confidence: 87%

“…Main streams orientation (such as the Agueda, Duero, Esla and Valderaduey rivers) (Fig. 11) is conditioned by the fault pattern as abrupt changes in main trunk direction and incision distribution reveal (Antón and Muñoz Martín, 2007;Antón et al, 2011).…”

Section: Potentially Active Faultsmentioning

confidence: 99%

Seismicity and potencially active faults in the Northwest and Central-West Iberian Peninsula

Martín-González

Antón

Arévalo

et al. 2012

Journal of Iberian Geology

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“…3). The northeastern part of the Duero basin (the easternmost Duero River, the Arlanzón and Pisuerga rivers) mainly consists of broad flat valleys characterized by low incision depth and low-gradient streams with concave longitudinal profiles (Antón et al, 2012(Antón et al, , 2014. By contrast, the western part of the Ebro basin is characterized by more incised valleys, especially in the Cantabrian and in the Cameros-Iberian Range domains, with more complex longitudinal profiles (knickpoints, remnants of highly elevated surfaces).…”

Section: Evidence Of Divide Mobility Between the Duero And Ebro Catchmentioning

confidence: 99%

“…Since then, both basins opened toward the Atlantic Ocean (Duero) or the Mediterranean Sea (Ebro). The Ebro basin's opening is reflected in the landscape by evidence of river incision (GarciaCastellanos et al, 2003), whereas the Duero basin does not show significant incision in its upstream part as a large relict of its endorheic morphology is preserved (Antón et al, 2012). The Duero River long profile actually shows a pronounced knickpoint (knickzone) defining an upstream domain of high mean elevation ( ∼ 800 m) and low relief where the sediments deposited during the endorheic stage are relatively well preserved.…”

mentioning

confidence: 99%

Drainage reorganization and divide migration induced by the excavation of the Ebro basin (NE Spain)

2018

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Abstract. Intracontinental endorheic basins are key elements of source-to-sink systems as they preserve sediments eroded from the surrounding catchments. Drainage reorganization in such a basin in response to changing boundary conditions has strong implications on the sediment routing system and on landscape evolution. The Ebro and Duero basins represent two foreland basins, which developed in response to the growth of surrounding compressional orogens, the Pyrenees and the Cantabrian mountains to the north, the Iberian Ranges to the south, and the Catalan Coastal Range to the east. They were once connected as endorheic basins in the early Oligocene. By the end of the Miocene, new post-orogenic conditions led to the current setting in which the Ebro and Duero basins are flowing in opposite directions, towards the Mediterranean Sea and the Atlantic Ocean. Although these two hydrographic basins recorded a similar history, they are characterized by very different morphologic features. The Ebro basin is highly excavated, whereas relicts of the endorheic stage are very well preserved in the Duero basin. The contrasting morphological preservation of the endorheic stage represents an ideal natural laboratory to study the drivers (internal and/or external) of post-orogenic drainage divide mobility, drainage network, and landscape evolution. To that aim, we use field and map observations and we apply the χ analysis of river profiles along the divide between the Ebro and Duero drainage basins. We show here that the contrasting excavation of the Ebro and Duero basins drives a reorganization of their drainage network through a series of captures, which resulted in the southwestward migration of their main drainage divide. Fluvial captures have a strong impact on drainage areas, fluxes, and their respective incision capacity. We conclude that drainage reorganization driven by the capture of the Duero basin rivers by the Ebro drainage system explains the first-order preservation of endorheic stage remnants in the Duero basin, due to drainage area loss, independently from tectonics and climate.

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“…Recientemente se han llevado a cabo avances muy significativos sobre la tasa de incisión fluvial del río Duero y la edad de las superficies de erosión, a través del análisis de perfiles longitudinales, la aplicación de índices geomorfológicos y la realización de dataciones cosmogénicas de las superficies de erosión. En concreto, Antón et al (2012) estiman una tasa de incisión de 2-3 mm año -1 durante los últimos 100 ka y edades de exposición de 300 ka para la superficie erosiva de Homomula (764 m), de 62-78 ka para la superficie de El Rostro (530-522 m) y de 27-37 ka para la de Saucelle (287-285 m), todas ellas en Salamanca.…”

Section: Introductionunclassified

Valoración del patrimonio geomorfológico de un sector del Parque Natural de Arribes del Duero (Bajo Sayago, Zamora)

Alfonso

Piedrabuena

Bergua

2017

CyG

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Se efectúa una valoración del patrimonio geomorfológico del Parque Natural de Arribes del Duero, concretamente, en un sector de la comarca zamorana del Bajo Sayago que tiene una extensión de unas 6.000 ha, a partir de la aplicación de varios métodos relacionados con el análisis de Lugares de Interés Geomorfológico (LIGm) en espacios naturales protegidos. Como resultado se han identificado nueve geomorfositios de los cuales tres, esto es, Peña Gazón y valle de Peña la Galga, Las Barrancas y finalmente Cerro de San Miguel, alcanzan una valoración global sobresaliente. A partir de la evaluación de los valores científicos, culturales y de uso y gestión de cada LIGm se establecen propuestas orientadas a su gestión, que pasan mayoritariamente por la interpretación del patrimonio geomorfológico enfocado al aprovechamiento geoturístico y educativo. La buena accesibilidad, el excelente estado de conservación y el escaso riesgo de degradación convierten dichos Lugares de Interés Geomorfológico en recursos patrimoniales útiles para el desarrollo local sostenible.

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Quantification of fluvial incision in the Duero Basin (NW Iberia) from longitudinal profile analysis and terrestrial cosmogenic nuclide concentrations

Cited by 59 publications

References 55 publications

Seismicity and potencially active faults in the Northwest and Central-West Iberian Peninsula

Seismicity and potencially active faults in the Northwest and Central-West Iberian Peninsula

Drainage reorganization and divide migration induced by the excavation of the Ebro basin (NE Spain)

Valoración del patrimonio geomorfológico de un sector del Parque Natural de Arribes del Duero (Bajo Sayago, Zamora)

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