Dynamics of Mediterranean late Quaternary fluvial activity: An example from the River Ebro (north Iberian Peninsula)

Soria-Jáuregui, Ángel; González-Amuchastegui, María José; Mauz, Barbara; Lang, Andreas

doi:10.1016/j.geomorph.2016.06.006

Cited by 16 publications

(14 citation statements)

References 97 publications

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“…The second type corresponds to terrace staircases. These are described in the Ebro River (Soriano, 1990; Leránoz, 1993; Julián, 1996; Soria-Jáuregui et al, 2016) and in most of its tributaries (Julián, 1996; Peña-Monné and Sancho, 1988; Guerrero et al, 2008; Benito et al, 2010; Lewis et al, 2017). In some cases, the correlation of these terraces is complex because they are affected by neotectonic movements (Turú i Michels and Peña-Monné, 2006) or by karstic subsidence processes (Benito et al, 2010; Luzón et al, 2012; Gil et al, 2013).…”

Section: Geologic Settingmentioning

confidence: 99%

“…The chronological study of terraces indicates that terrace formation extends from the early Pleistocene (1276 ± 104 ka) (Sancho et al, 2016) to the Holocene (e.g., Soria-Jáuregui et al, 2016). According to Stange et al (2013), terrace formation seems to be related to the synchronous action of Quaternary climatic oscillations and tectonic uplift.…”

Section: Geologic Settingmentioning

confidence: 99%

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Geomorphic and tectonic implications of the endorheic to exorheic transition of the Ebro River system in northeast Iberia

2018

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The Ebro catchment includes a continental foreland basin that underwent an endorheic–exorheic transition. Morphometric studies, including hypsometric curves, hypsometric integrals, asymmetry factor, mountain front sinuosity, normalised stream-length gradient, and normalised concavity indices for the Ebro River and 32 of its tributaries, show the signals of transient response to this major drainage change. The Ebro River, its upper catchment tributaries, and the Pyrenean tributaries have concave-up longitudinal profiles, concave hypsometric curves, and low hypsometric integrals, parameters typical of deeply dissected basins. This suggests a mature stage of development, controlled by the shift of the base level to the Mediterranean Sea. Iberian Range tributaries display low concavity profiles with numerous knickpoints and high values of hypsometric integral, indicating a transient state as a response to tectonic uplift, ratified by the values of mountain front sinuosity surrounding the basin.

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Section: Geologic Settingmentioning

confidence: 99%

Section: Geologic Settingmentioning

confidence: 99%

Geomorphic and tectonic implications of the endorheic to exorheic transition of the Ebro River system in northeast Iberia

2018

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“…The fact that they are tilted reveals some tectonic activity, which may correspond to the latest stages of the Sierra Cantabria-Obarenes Mountains thrust. In any event, sometime after that, but definitely after the Late Miocene, the Ebro River developed a sequence of 11 strath terrace levels over the Miocene sedimentary bedrock in the Miranda sector of the catchment [41,51,52]. Their distribution is rather heterogeneous; they are more abundant toward the Miranda basin, and the lowermost terraces are generally better preserved (Figure 1).…”

Section: Regional Settingmentioning

confidence: 99%

“…Many fewer studies have been devoted to the timing and formation of the fluvial terraces formed by the progressive downcutting of the fluvial network that followed the aperture of the basin to the Mediterranean Sea (e.g., [26][27][28][29][30][31][32][33][34][35][36][37]). Even less data exist for the terraces of the trunk river [38][39][40][41].…”

Section: Introductionmentioning

confidence: 99%

First Chronological Constraints for the High Terraces of the Upper Ebro Catchment

et al. 2021

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The Cenozoic sedimentary basins in the Iberian Peninsula show a change from long-term basin infill to incision, a transition that indicates a period of major drainage reorganization that culminated in the throughflow of the networks to the Atlantic and Mediterranean oceans. Both the cause of the transition from aggradation to degradation and the linkages to tectonic, climatic, and geomorphic events hinge on the chronology of the fluvial network incision and excavation of the basin’s sedimentary fills. In this paper, we describe the first chronologic data on the highest fluvial terraces of the upper area of the Ebro River, one of the largest fluvial systems in the Iberian Peninsula, to determine the onset of incision and excavation in the basin. For this purpose, we combine electron spin resonance (ESR) and paleomagnetism methods to date strath terraces found at 140, 90, and 85 m above the current river level. Our results show ages of ca. 1.2 and 1.5 Ma for the uppermost river terraces in the upper Ebro catchment, constraining the minimum age of the entrenchment of the upper Ebro River.

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“…Similarly, ancient river long‐profiles are reconstructed projecting the elevation of fluvial terrace remnants – mapped through classic techniques – along the nearest present‐day river section in order to understand the evolution of river incision through time and potential links to tectonics and climate variations (Soria‐Jáuregui et al, ; Delmas et al, ; Takahashi and Sugai, ; Viveen et al, ). Though the construction of relict long‐profile diagrams is a common practice, most contributions provide succinct explanations on how these diagrams are exactly produced regarding, for example, the number of observations taken into account or the exact criteria considered for terrace point selection (e.g.…”

Section: Introductionmentioning

confidence: 99%

A GIS method to identify flat surfaces and restore relict fluvial long‐profiles from terrace remnants gives new clues on how large basins respond to endorheic–exorheic transitions (Duero basin, Iberian Peninsula)

Rodríguez‐Rodríguez

Antón

Pallàs

et al. 2020

Earth Surf Processes Landf

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Fluvial terraces are used as geomorphic indicators for deciphering long‐term landscape evolution. Knowing the distribution of fluvial terraces is essential for establishing former river profiles and their tectonic significance, for studying climate‐modulated processes of terrace development, or for defining fluvial network adjustments in response to sudden base‐level changes like those produced by fluvial captures. Multiple methods for automatic map production have been proposed based on the comparison of morphometric indices with those of the modern river course. Here we propose an alternative method to identify flat surfaces and scarps separating them from digital elevation models without setting comparisons with a modern river course and thus fully applicable to study flat landforms whatever their origin. Its application to the low‐relief landscape of the Cenozoic Duero basin has allowed the improvement of previous geomorphological maps and the analysis of fluvial network adjustments in response to a sudden base‐level fall after the opening of the Neogene endorheic basin towards the Atlantic Ocean. Reconstructed terrace long‐profiles suggest an initial episode of fast vertical incision followed by a period of repeated planation–aggradation–incision with the formation of 14 to 13 unpaired terrace levels. Changes observed in the pattern of terrace profiles are discussed with regard to changes in regional tectonics and base‐level variations. © 2019 John Wiley & Sons, Ltd.

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Dynamics of Mediterranean late Quaternary fluvial activity: An example from the River Ebro (north Iberian Peninsula)

Cited by 16 publications

References 97 publications

Geomorphic and tectonic implications of the endorheic to exorheic transition of the Ebro River system in northeast Iberia

Geomorphic and tectonic implications of the endorheic to exorheic transition of the Ebro River system in northeast Iberia

First Chronological Constraints for the High Terraces of the Upper Ebro Catchment

A GIS method to identify flat surfaces and restore relict fluvial long‐profiles from terrace remnants gives new clues on how large basins respond to endorheic–exorheic transitions (Duero basin, Iberian Peninsula)

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