CADIC 02618
CENTRO AUSTRAL DE INVESTIGACIONES CIENTIFICAS
Unidad Ejecutora - UE
artículos
Título:
Cryogenic landforms in the Sierras de Alvear, Fuegian Andes, Subantarctic Argentina
Autor/es:
VALCÁRCEL-DÍAZ, M.; CARRERA-GÓMEZ, P.; CORONATO, A.; CASTILLO-RODRÍGUEZ, F.; RABASSA, J.; PÉREZ-ALBERTI, A.
Revista:
Permafrost and Periglacial Processes
Editorial:
John Wiley & Sons
Referencias:
Año: 2006 p. 371 - 376
ISSN:
1045-6740
Resumen:
A preliminary survey of periglacial landforms found in the Monte Alvear region of the Fuegian Andes, subantarctic Argentina has revealed the presence of nivation hollows, subnival ¨boulder¨(clast) pavements, protalus ramparts, debris lobes, patterned ground and cryo-ejected clasts. With the exception of debris lobes and cryo-ejected clasts, all the landforms show some degrees of activity and are, therefore, cosidered as indicators of present-day cryonival morphodynamics at higher elevations in these mountains. A number of small tors, while not necessary periglacial in origin, are also apparently experiencing cryogenic weathering.
