Ground deformation monitoring at Mt Etna; evidence for dyke emplacement and slope instability

Autor:	A. D. Pullen, Wj Mcguire, J. B. Murray, S. J. Saunders
Rok vydání:	1991
Předmět:	Flank Dike geography geography.geographical_feature_category Fissure Geology Debris Instability Deformation monitoring medicine.anatomical_structure Slope stability medicine Caldera Geomorphology Seismology
Zdroj:	Journal of the Geological Society. 148:577-583
ISSN:	2041-479X 0016-7649
DOI:	10.1144/gsjgs.148.3.0577
Popis:	Ground deformation monitoring at Mount Etna has successfully enabled the sub-surface paths of two shallow feeder-dykes to be traced, and their dimensional parameters, depths and departures from the vertical, to be constrained. Determinations of horizontal movement have recorded the displacement, by 3.6 m (maximum), of a rim segment of the Valle del Bove flank caldera, due to dilation associated with dyke emplacement adjacent to the rim over the period 1981 to 1989. Small-scale collapse along this rim segment, associated with the opening of the 1989 fissure, points to increasing slope instability, and highlights the potential for major failure and debris avalanche generation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f1ae0c0f028b6b85bb0b56218e644cdf https://doi.org/10.1144/gsjgs.148.3.0577 Zobrazit plný text záznamu