Registro palinológico de un depósito postglaciar en el Parque Natural de Redes (Cordillera Cantábrica, Noroeste de España): implicaciones paleoclimáticas

• Autores: M. C. Salvany, Jesús Carrera Ramírez, J. Bolzicco, O. Bernet, Carlos Mediavilla Laso, R. Mantecón
• Localización: Geotemas (Madrid), ISSN 1576-5172, Nº. 1, 4, 2000 (Ejemplar dedicado a: V Congreso Geológico de España (Alicante, 10-14 julio 2000)), págs. 279-284
• Idioma: español
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• Resumen

  • The deposits originated by the filling of old glacial cirques since the Last Glacial Maximum are frequent in the Cantabrian mountain range (NW Spain), and they are mainly of Late Wurm age.

    The periglacial and alluvial erosive processes, which have been predominant during postglacial times in the area, affected them leading to the existence o f sedimentary hiatuses.The palynological record of a postglacial deposit from the Natural Park of Redes (Asturias), with a datation at its base of 20.640+300 years BP, is presented in this work. Although a sedimentary hiatus exists, the evolution of the climatic conditions during Pleniglacial and during Late Holocene has been established from pollen analysis. An open landscape indicates cold conditions during Pleniglacial, and a light improve followed by a new worsening have been detected into this period. The shrub vegetation dominance during the Late Holocene shows the trend to warmer and more arid climatic conditions.