Obtención de la curva de magnitud – frecuencia de corrientes de derrubios mediante el uso combinado de datación relativa y datación dendrocronológica. El ejemplo del barranco del Tordó (Prepirineo Oriental)

• Autores: J. Moya, R. García
• Localización: Avances de la Geomorfología en España 2012-2014 / coord. por Susanne Cecilia Schnabel, Álvaro Gómez Gutiérrez, 2014, ISBN 978-84-617-1123-9, págs. 376-379
• Idioma: español
• Títulos paralelos:
  • Coupling of relative and dendrochronological dating for the assessment of magnitude – frequency curve of debris-flows. An example from the Tordó Torrent (Eastern Pyrenees)
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• Resumen

  • Assessment of magnitude-frequency relationships of debris flows is especially difficult at sites where repeated activity occurs, as in a debris cone. Here, a method for estimating the magnitude of debris-flow events and for dating them by means of relative dating and tree-ring dating is presented. The method was applied to a small torrential basin located in the Eastern Pyrenees (the Tordó torrent basin). A total of eight debris flows were identified, ranging from 600 to 19000 m3, and dated at the site which cover a period of 47 years.