Instability phenomena in the evaporite karst of Calabria, Southern Italy

Pure and applied karst geomorphology

Auteur(s) et Affiliation(s)

IOVINE, G.

Ist. di Ricerca per la Protezione Idrogeologica del Consiglio Nazionale delle Ricerche, Sede di Cosenza, Rende, Italie

PARISE, M.

Ist. di Ricerca per la Protezione Idrogeologica del Consiglio Nazionale delle Ricerche, Sede di Bari, Bari, Italie

TROCINO, A.

Associazione Explora, Italie

DE WAELE, J.

Dep. of Earth Sciences and Environmental Geology, Italian Inst. of Speleology, Univ., Bologna, Italie

FILIPPONI, M.

Swiss Federal Inst of Technology (EPFL), Lausanne, Suisse

GUTIÉRREZ, F.

Dep. of Earth Sciences, Univ., Zaragoza, Espagne

PARISE, M.

National Research Council - Inst. of Research for the Hydrogeological Protection, Italie

PLAN, L.

Natural History Museum, Karst and Cave, Vienna, Autriche

Description :
This study deals with analysis of instability phenomena in the Upper Miocene to Pleistocene deposits of the evaporite karst in the Crotone Basin (Calabria, southern Italy). A type of instability is represented by sinkholes, a very common karst landform in evaporite rocks. The effects from gravitational and erosional processes are described in the article also through direct observations within the underground system, which pattern is controlled by a combination of tectonics and breakdown mechanisms. The low resistance of evaporites, locally increased by prevailing clays in the stratigraphy, determines high frequency of fallen blocks. The comparison between the landforms and deposits observed at the surface and underground pointed out to the difficulty in directly linking what is observed at the ground with the processes acting within the karst system. This has obvious consequences in terms of civil protection.

Type de document :
Article de monographie

Source :
Zeitschrift für Geomorphologie, issn : 0372-8854, 2010, vol. 54, n°. 2, Special issue, p. 153-178, nombre de pages : 26, Références bibliographiques : 3 p.

Date :
2010

Editeur :
Pays édition : Allemagne, Stuttgart, Gebruder Borntraeger

Langue :
Anglais