El registro de la Laguna de Taravilla (Alto Tajo, Sistema Ibérico) como sensor de cambios paleobidrológicos y paleoambientales
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B.L. Valero Garcés [1] ; A. Navas [2] ; Pilar Mata [3] ; J. Machín [2] ; A. Delgado Huertas [7] ; P. González Sampériz [1] ; A. Schawalb [4] ; A. Moreno Caballud [1] ; L. Edwards [5] ; A. González Barrios [6]
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[1] Instituto Pirenaico de Ecología
Instituto Pirenaico de Ecología
Zaragoza, España
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[2] Estación Experimental de Aula Dei
Estación Experimental de Aula Dei
Zaragoza, España
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[3] Universidad de Cádiz
Universidad de Cádiz
Cádiz, España
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[4] Braunschweig University of Technology
Braunschweig University of Technology
Kreisfreie Stadt Braunschweig, Alemania
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[5] University of Minnesota
University of Minnesota
City of Minneapolis, Estados Unidos
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[6] Universidad de Córdoba
Universidad de Córdoba
Cordoba, España
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[7] Estación Experimental de El Zaidin (C.S.I.C.)
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- Localización: Geotemas (Madrid), ISSN 1576-5172, Nº. 6, 5, 2004 (Ejemplar dedicado a: VI CONGRESO GEOLÓGICO DE ESPAÑA, ZARAGOZA, 12-15 JULIO, 2004), págs. 157-160
- Idioma: español
- Enlaces
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Resumen
Lacustrine and travertine records from Laguna de Taravilla (Iberian Range, Guadalajara province,Spain, 40s 39' N, I s 59' W, 1100 m a.si.) have been analysed using sedimentological, mineralógica!, geochemical and palynological techniques. A preliminary chronological framework is basedon U/Th, 14C AMS, 2WPb and 137Cs dates. Phases of increased travertine growth occurred duringthe Glacial- Interglacial transitions from isotope stage 6 to 5 and 2 to 1. Short lacustrine cores indicate a lake level increase after the XVth century; that can be correlated with the end of the Medieval Warm Period. Sandy facies related to flood events are more frequent during the intervalascribed to the Little Ice Age. During the last century, the growth of littoral vegetation at the mouthof the inlet could have prevented more sandy sediments to reach the center of the lake
