Publication: Nuevas perspectivas para la identificación y el conocimiento
de la morfología glaciar de la Sierra del Teleno (León)
y su transformación antrópica.
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Publication Date
2017
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Sociedad Geológica de España
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Abstract
La Sierra del Teleno constituye un sistema montañoso de dirección NO-SE en el sector meridional de los Montes Galaico-Leoneses. Está caracterizado por la presencia de restos de morfologías glaciares, activas durante gran parte del Pleistoceno Superior, y que configuran una serie de circos y depósitos a lo largo de sus dos vertientes. Aunque la vertiente norte presenta rasgos más desarrollados, con circos compuestos y arcos morrénicos bien definidos, la cartografía geomorfológica permite resaltar algunas evidencias de actividad glaciar y fluvioglaciar en la vertiente sur, representadas por restos de morrenas y terrazas fluvioglaciares. En esta última, la intensa actividad minera llevada a cabo en época romana, y caracterizada por la presencia de una red hidráulica compuesta por canales y estanques para el transporte y almacenamiento de agua necesaria en las explotaciones, así como los trabajos de extracción, han producido una fuerte transformación del paisaje, dificultando la preservación e identificación de los restos de modelado glaciar. En este trabajo se presentan los resultados preliminares de una cartografía que integra las formas glaciares y antrópicas, para identificar el grado de transformación sufrido por el paisaje en época histórica.
The Sierra del Teleno is a NW-SE trending mountain system located in the southern sector of the Galaico-Leoneses Mountains. It is characterized by the presence of remnants of glacial landforms, active during most of the Upper Pleistocene, and represented by several cirques and related deposits. Along the northern slope the glacial features are well developed, showing multiple cirques and moraine arcs. However, geomorphological remains are not well preserved in the southern flank where a few evidences of glacial and fluvioglacial activity, represented by remains of moraine deposits and terraces, are partially transformed. Moraines have been intensively affected by goldmining works carried out during the Roman times, comprising the presence of a complex hydraulic system with canals and water reservoirs used for the transport and storage of water needed for the roman works. Thus, hiding the effect of natural processes on the landscape and the identification and preservation of glacial landforms. We present the preliminary results of the mapping of glacial remains based on the integration of natural and human-induced transformations occurred in historical period.
The Sierra del Teleno is a NW-SE trending mountain system located in the southern sector of the Galaico-Leoneses Mountains. It is characterized by the presence of remnants of glacial landforms, active during most of the Upper Pleistocene, and represented by several cirques and related deposits. Along the northern slope the glacial features are well developed, showing multiple cirques and moraine arcs. However, geomorphological remains are not well preserved in the southern flank where a few evidences of glacial and fluvioglacial activity, represented by remains of moraine deposits and terraces, are partially transformed. Moraines have been intensively affected by goldmining works carried out during the Roman times, comprising the presence of a complex hydraulic system with canals and water reservoirs used for the transport and storage of water needed for the roman works. Thus, hiding the effect of natural processes on the landscape and the identification and preservation of glacial landforms. We present the preliminary results of the mapping of glacial remains based on the integration of natural and human-induced transformations occurred in historical period.