Identificación de eventos estadiales e interestadiales mediante la caracterización sedimentológica, palinológica e isotópica del registro de la laguna grande (Sierra de Neila)
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[1] Instituto Geológico y Minero de España
Instituto Geológico y Minero de España
Madrid, España
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[2] Estación Experimental del Zaidín
Estación Experimental del Zaidín
Granada, España
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[3] Universidad Complutense de Madrid
Universidad Complutense de Madrid
Madrid, España
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[4] Universidad Alcalá de Henares
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- Localización: Contribuciones al estudio del periodo cuaternario / coord. por Javier Lario, Pablo G. Silva Barroso, 2007, ISBN 978-84-7484-201-2, págs. 219-220
- Idioma: español
- Texto completo no disponible (Saber más ...)
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Resumen
The sedimentary record of Laguna Grande (NW Iberian Range) accumulated and preserved fine laminated sediments (rhytmites and graded layers) and peat layers. This proglacial lake containsa 10-m long sedimentary sequence that covers about the last ~20,500 years Cal BP and starts with a sequence of graded sand layers of unknow age. Two main environmental and climatic scenarios can be identified according to high resolution sedimentary microfacies, δ13CTOC values and pollen content: (A) Interstadials/Interglacial - that reflect low water recharge, lower lake levels (peat growth) and a higher vegetation cover in watersheds. (B) Stadials – that are interpreted as periods of higher water recharge, higher lake levels and scarce vegetation cover in watershed
