Landscape antiquity of the Central-Eastern Sierras Pampeanas (Argentina) : geomorphological evolution since Gondwanic times

Tectonic geomorphology

Auteurs :
CARIGNANO, C.
CIOCCALE, M.
RABASSA, J.
FRISCH, W.

Description :
This paper discusses the significance of relict landforms eroded on Precambrian, Palaeozoic and Mesozoic rocks of the Sierras Pampeanas (Argentina), within the framework of Gondwanaland evolution. The erosion surfaces which have successively levelled the regional relief are identified by using geomorphological, geometrical structural and sedimentological criteria. Due to the Pampean faulting and uplifting during the last 10 Ma, almost all surfaces have been broken and tilted. The described Sierras Pampeanas planation surfaces are tentatively correlated with those of Eastern Brazil and Southern Africa.


Type de document :
Congrès

Source :
Proceedings of the International Conference on Geomorphology, 4, Bologna, Italie, 1997-08-28, Zeitschrift für Geomorphologie. Supplementband, issn : 0044-2798, 1999, n°. 118, p. 245-268, Collation : Illustration, Références bibliographiques : 63 ref.

Date :
1999

Editeur :
Pays édition : Allemagne, Berlin ; Stuttgart, Borntraeger