The Influence of Structural Setting and Lithology on Landslide Type and Pattern

Abstract

Research Article| January 01, 1996 The Influence of Structural Setting and Lithology on Landslide Type and Pattern FAUSTO GUZZETTI; FAUSTO GUZZETTI CNR—Institute for Hydrogeological Protection in Central Italy, via Madonna Alta, 126–06128 Perugia, Italy Search for other works by this author on: GSW Google Scholar MAURO CARDINALI; MAURO CARDINALI CNR—Institute for Hydrogeological Protection in Central Italy, via Madonna Alta, 126–06128 Perugia, Italy Search for other works by this author on: GSW Google Scholar PAOLA REICHENBACH PAOLA REICHENBACH CNR—Institute for Hydrogeological Protection in Central Italy, via Madonna Alta, 126–06128 Perugia, Italy Search for other works by this author on: GSW Google Scholar Environmental and Engineering Geoscience (1996) II (4): 531–555. https://doi.org/10.2113/gseegeosci.II.4.531 Article history first online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation FAUSTO GUZZETTI, MAURO CARDINALI, PAOLA REICHENBACH; The Influence of Structural Setting and Lithology on Landslide Type and Pattern. Environmental and Engineering Geoscience 1996;; II (4): 531–555. doi: https://doi.org/10.2113/gseegeosci.II.4.531 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentBy SocietyEnvironmental and Engineering Geoscience Search Advanced Search Abstract A comprehensive investigation of the regional distribution, pattern and types of landslides was completed in the Umbria-Marche region of Central Italy. Landslide occurrence was ascertained through medium-scale inventories and detailed geomorphological investigations carried out in pilot areas in different lithological environments. Landslide types and pattern were identified within each of the five lithological complexes cropping out in the region, namely: carbonate, flysch, Ligurian allochthonous complex, volcanic rocks, and post-orogenic sediments. Failures were found to be controlled by the relative position of sedimentary and tectonic discontinuities, by the relative abundance of hard versus weak or soft rocks, and by the attitude of permeable and impermeable layers. Despite the considerable geological and geotechnical heterogeneity, similarities between landslide types and patterns were observed across physiographic boundaries. Five landslide-related geomorphological settings were identified, namely: the presence of discontinuities dipping toward the free face of slope (dip slope) or into the slope (reverse slope), the occurrence of a hard cap overlying ductile sediments, the presence of colluvium, the outcrop of homogeneous clay, and the outcrop of hard rocks along steep slopes. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not currently have access to this article.