Las precipitaciones carbonatadas de los cañones del Ebro: Avances en su reconocimiento y cronología
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González Pellejero, Raquel ; A. Martínez-Aguirre [1] ; Fernando Allende Álvarez [2] ; Frochoso Sánchez, Manuel
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[1] Universidad de Sevilla
Universidad de Sevilla
Sevilla, España
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[2] Universidad Autónoma de Madrid
Universidad Autónoma de Madrid
Madrid, España
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- Localización: Avances de la geomorfología en España, 2010-2012: actas de la XII Reunión Nacional de Geomorfología, Santander, 17-20 septiembre de 2012 / coord. por Alberto González Díez, 2012, ISBN 978-84-86116-54-5, págs. 401-404
- Idioma: español
- Títulos paralelos:
- Carbonated tufas of Ebro Canyon (Burgos): research and chronology advances.
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Resumen
The upper Ebro River flows from the Cantabrian Mountains and through La Lora and Lora de Bricia syncline plateaus (Burgos). The Ebro River has shaped a narrow valley there –the Ebro Canyon- which is now a protected area: the “Hoces del Alto Ebro y Rudrón” Natural Park. The mountain slopes and the canyon channel have a high amount of carbonated tufa accumulation, which are more or less disconnected from the present day watercourses. However, the accumulation processes continue today. An example of a tufa complex, including its dams and terraces, has been studied in Tubilla del Agua. This has been contrasted with the Orbaneja spring tufa. The carbonate accumulation maxima took place during the Atlantic period, from U/Th and OSL ages (6.4 ka, 5.5 ka and 4.5 ka), but the oldest tufa dam and cascade in Tubilla has a U/Th age of 21.2 ± 1.7 ka.
