This work refers to an extended sector of Adriatic Central Italy. It is widely representative of a good part of the remaining peninsular territory, articulated in two fundamental systems: the mountainous system of the Umbria-Marche Apennine, made up prevalently of limestone structured in east verging folds and thrusts, and the second hilly-coastal system made up mainly of marly clays interspersed with sands and conglomerates structured in a monoclinal setting which ends in a narrow anticline along the Adriatic Coast. The structural setting is a consequence of the Pliocene compressive tectonics and its late effects, still active on the coast, and of an extensive tectonic phase which was activated starting in the early Pleistocene, to which a generalised and intense uplifting is associated. The genesis of high fault slopes and thrust fronts and the deep incision of the hydrographic network, to which high relief is connected, are associated to the latter. Analysed and interpreted are the mass movements which characterise the fundamental physiographic units that make up the systems, whose action (past and present) assumes a fundamental role in the evolution of the physical landscape of the area since it re-modelled a great part of the valley incisions. Huge landslides and deep seated gravitational slope deformations characterise both the tectonic slopes and the transversal valleys of the chain. They affect, besides, the bedrock for a thickness of from a few decametres to a hundred metres and more and are frequent also along the coastal cliffs. Such great gravitational phenomena are less frequent in the hilly unit, but have a great importance there since they often affect villages which originated in the Medieval Ages. In this latter unit, besides, specific mass movements of the clayey bedrock and of the mainly silty-clayey eluvialcolluvial coverings are strongly diffused. Through the analysis of typical cases, the predisposing, activating and evolutive control factors are identified or hypothesised. These are mainly identified in the lithostratigraphicstructural, tectonic, and seismic factors; in the hydrogeological setting connected to the intrinsic conditions of permeability of the lithotype and to the Pleistocene-Holocene climate oscillations; in the morphological setting induced by the tectonics-climate interaction; in the slope anthropization and in the related farming activities.

Mass movement in adriatic central Italy: activation and evolutive control factors.

ARINGOLI, Domenico;GENTILI, Bernardino;MATERAZZI, Marco;PAMBIANCHI, Gilberto
2011

Abstract

This work refers to an extended sector of Adriatic Central Italy. It is widely representative of a good part of the remaining peninsular territory, articulated in two fundamental systems: the mountainous system of the Umbria-Marche Apennine, made up prevalently of limestone structured in east verging folds and thrusts, and the second hilly-coastal system made up mainly of marly clays interspersed with sands and conglomerates structured in a monoclinal setting which ends in a narrow anticline along the Adriatic Coast. The structural setting is a consequence of the Pliocene compressive tectonics and its late effects, still active on the coast, and of an extensive tectonic phase which was activated starting in the early Pleistocene, to which a generalised and intense uplifting is associated. The genesis of high fault slopes and thrust fronts and the deep incision of the hydrographic network, to which high relief is connected, are associated to the latter. Analysed and interpreted are the mass movements which characterise the fundamental physiographic units that make up the systems, whose action (past and present) assumes a fundamental role in the evolution of the physical landscape of the area since it re-modelled a great part of the valley incisions. Huge landslides and deep seated gravitational slope deformations characterise both the tectonic slopes and the transversal valleys of the chain. They affect, besides, the bedrock for a thickness of from a few decametres to a hundred metres and more and are frequent also along the coastal cliffs. Such great gravitational phenomena are less frequent in the hilly unit, but have a great importance there since they often affect villages which originated in the Medieval Ages. In this latter unit, besides, specific mass movements of the clayey bedrock and of the mainly silty-clayey eluvialcolluvial coverings are strongly diffused. Through the analysis of typical cases, the predisposing, activating and evolutive control factors are identified or hypothesised. These are mainly identified in the lithostratigraphicstructural, tectonic, and seismic factors; in the hydrogeological setting connected to the intrinsic conditions of permeability of the lithotype and to the Pleistocene-Holocene climate oscillations; in the morphological setting induced by the tectonics-climate interaction; in the slope anthropization and in the related farming activities.
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11581/213864
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact