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Title:
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Evolución del drenaje en cuencas erosivas durante el Neógeno-Cuaternario. Margen oriental de la Cuenca del Ebro;
Drainage basins evolution during the Neogene-Quaternary. Ebro Basin eastern margin
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Author:
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Castelltort Aiguabella, F. Xavier; Balasch Solanes, J. Carles (Josep Carles); Cirés Fortuny, Jordi; Colombo Piñol, Ferran
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Notes:
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The monocline layout of the sedimentary pile of the Ebro Basin in its
Eastern margin determines the generation and emptying of the adjacent
erosive basins. It controls the drainage changes in the original sedimentary
basin. A model of emptying erosive basins corresponding to a drainage
architecture and sediment production is proposed. The emptying of erosive
basins is achieved by two vectors: A) A drainage basin area growth due to
anaclinal streams eroding into the resistant layers of the monocline
stratigraphic succession. These streams empty and link small depressions
generated at the expense of the lateral extension on the less resistant
lithologic member. B) The drainage basin outlet point base level controls the
drainage network entrenchment facilitated by the gradients created by
Neogene extensional faults from the Valencia Trough. A model of the growth
and entrenchment of erosive basins as well as the generated landforms and
sediment production is described and analyzed |
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Subject(s):
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-Drainage network
-Drainage basin
-River capture
-Eastern Ebro Basin
-Quaternary |
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Rights:
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(c) Sociedad Geológica de España, 2016
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Document type:
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article
publishedVersion |
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Published by:
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Sociedad Geológica de España
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