Biblioteca de la Universidad Complutense de Madrid

Reconstrucción de las condiciones paleoambientales del depósito Pñ (Macizo de Peñalara, Sierra de Guadarrama. Madrid), durante los últimos 2.000 años, a partir del contenido en microfósiles no polínicos (NPPs)

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Ruiz Zapata, María Blanca y Gómez González, Clemencia y Gil García, M. José y López Saez, José Antonio y Santisteban Navarro, Juan Ignacio y Mediavilla López, Rosa María y Domínguez Castro, Fernando y Vera López, Soledad (2009) Reconstrucción de las condiciones paleoambientales del depósito Pñ (Macizo de Peñalara, Sierra de Guadarrama. Madrid), durante los últimos 2.000 años, a partir del contenido en microfósiles no polínicos (NPPs). Geogaceta, 46 . pp. 135-138. ISSN 0213-683X

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Resumen

The content in non-pollen palynomorphs (NPPs), constitutes an important tool at the time of reconstructing
the paleoenviromental changes of a deposit and explaining them in terms of climate and/or anthropic activity.
This work show NPPs data from the peat deposit Pñ appear, of periglacial origin, located in the bulk of
Peñalara, (Mountain range of Guadarrama, Madrid). 14C data, locate the formation of this deposit in 1.600±40
BP. During this period, the palinological data show a regional landscape formed by forests of Pinus sylvestris,
Pinus pinaster and Quercus, as well as presences of Betula, whereas on local scale anthropozoogenic bivouacs
are developed to pastures (Poaceae and Plantago lanceolata). The presence of the higrophic pastures
(Cyperaceae) is constant throughout all the profile, like the NPPs, of similar ecological affinity and whose
variations have been very useful at the time of establishing the humidity fluctuations. Other NPPs has served
to demonstrate: the major or minor pastoral pressure, and the variations in the trophic conditions of the
peat bog. The changes observed in the vegetation and the uses of the ground, are also stated through the
information provided by the values of the pH and the conductivity of the sediment.


Tipo de documento:Artículo
Palabras clave:Palaeoecology, Palynology, Late Holocene, Vegetation, Anthropic activity
Materias:Ciencias > Geología > Geología estratigráfica
Ciencias > Geología > Paleontología
Código ID:12492
Depositado:29 Mar 2011 12:26
Última Modificación:05 May 2015 09:04

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