INVESTIGADORES
RABASSA Jorge Oscar
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 vol. 17 p. 371 - 376
Resumen:
ABSTRACT
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 degree of activity
and are, therefore, considered as indicators of present-day cryonival morphodynamics at higher
elevations in these mountains. A number of small tors, while not necessarily periglacial in origin, are
also apparently experiencing cryogenic weathering. Copyright # 2006 John Wiley & Sons, Ltd.# 2006 John Wiley & Sons, Ltd.