Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy)

Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy)

14 pages, 6 figures, 1 table

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Main Authors: Casalbore, Daniele, Bosman, Alessandro, Casas, David, Chiocci, Francesco L., Martorelli, Eleonora, Ridente, Domenico
Other Authors: Sapienza Università di Roma
Format: artículo biblioteca
Published: Multidisciplinary Digital Publishing Institute 2019-01
Subjects:Fault escarpments, Multibeam, Contourite deposits, Canyon, Landslide scars, Continental slope,
Online Access:http://hdl.handle.net/10261/197789
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100004271
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spelling dig-icm-es-10261-1977892022-04-22T06:01:51Z Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy) Casalbore, Daniele Bosman, Alessandro Casas, David Chiocci, Francesco L. Martorelli, Eleonora Ridente, Domenico Sapienza Università di Roma Ministerio de Economía y Competitividad (España) Fault escarpments Multibeam Contourite deposits Canyon Landslide scars Continental slope 14 pages, 6 figures, 1 table The analysis of high resolution morpho–bathymetric data on the Calabro Tyrrhenian continental margin (Southern Italy) enabled us to identify several morphological features originated by mass–wasting processes, including shallow gullies, shelf–indenting canyons and landslides. Specifically, we focus our attention on submarine landslides occurring from the coast down to −1700 m and affecting variable areas from thousands of square meters up to few tens of square kilometers. These landslides also show a large variability of geomorphic features which seems strictly related to the physiographic/morphological domains where the landslide formed. Tectonically–controlled scarps and canyon flanks are typically characterized by several coalescent and nested landslides, with diameters ranging from hundreds to a few thousands of meters. Canyon headwalls are commonly characterized by a cauliflower shape due to an array of small (diameters of tens of meters) and coalescent scars. In all these sectors, disintegrative–like landslides dominate and are generally characterized by a marked retrogressive evolution, as demonstrated by their morphology and comparison of repeated bathymetric surveys at the canyon headwall. Only in the lower part of tectonically–controlled scarps, a few cohesive–like and isolated landslides are present, indicating the main role of slope gradients and height drop in controlling the post–failure behavior of the mobilized material. Open slopes are generally characterized by large–scale (diameters of thousands of meters) and isolated scars, with associated landslide deposits. A peculiar case is represented by the Capo Vaticano Scar Complex that affected an area of about 18 km2 and is characterized by an impressive variability of landslide morphologies, varying also at short distance. The large extent and variability of such scar complex are thought to be associated with the occurrence of a mixed contouritic–turbidite system. By integrating the high–resolution morpho–bathymetric dataset with the results of previous studies, we discuss the main factors controlling the variability in size and morphology of submarine landslides developed in a tectonically–controlled setting and provide preliminary considerations on their potential geohazard in a densely populated coastal area The research was funded by the Italian MaGIC (Marine Geohazards along the Italian Coasts) Project and carried out in the framework of RITMARE (Ricerca ITaliana per il MARE) Project. [...] aniele Casalbore and David Casas also thank the research funding provided by “Progetto di Ateneo 2016” of the University Sapienza of Rome and the Spanish Project Fauces: CTM2015-65461-C2–1-R Peer Reviewed 2020-01-14T09:12:08Z 2020-01-14T09:12:08Z 2019-01 2020-01-14T09:12:08Z artículo http://purl.org/coar/resource_type/c_6501 issn: 2076-3263 e-issn: 2076-3263 Geosciences 9(1): 43 (2019) http://hdl.handle.net/10261/197789 10.3390/geosciences9010043 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100004271 #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-65461-C2-1-R Publisher's version https://doi.org/10.3390/geosciences9010043 No open Multidisciplinary Digital Publishing Institute
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
topic Fault escarpments
Multibeam
Contourite deposits
Canyon
Landslide scars
Continental slope
Fault escarpments
Multibeam
Contourite deposits
Canyon
Landslide scars
Continental slope
spellingShingle Fault escarpments
Multibeam
Contourite deposits
Canyon
Landslide scars
Continental slope
Fault escarpments
Multibeam
Contourite deposits
Canyon
Landslide scars
Continental slope
Casalbore, Daniele
Bosman, Alessandro
Casas, David
Chiocci, Francesco L.
Martorelli, Eleonora
Ridente, Domenico
Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy)
description 14 pages, 6 figures, 1 table
author2 Sapienza Università di Roma
author_facet Sapienza Università di Roma
Casalbore, Daniele
Bosman, Alessandro
Casas, David
Chiocci, Francesco L.
Martorelli, Eleonora
Ridente, Domenico
format artículo
topic_facet Fault escarpments
Multibeam
Contourite deposits
Canyon
Landslide scars
Continental slope
author Casalbore, Daniele
Bosman, Alessandro
Casas, David
Chiocci, Francesco L.
Martorelli, Eleonora
Ridente, Domenico
author_sort Casalbore, Daniele
title Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy)
title_short Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy)
title_full Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy)
title_fullStr Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy)
title_full_unstemmed Morphological Variability of Submarine Mass Movements in the Tectonically-Controlled Calabro-Tyrrhenian Continental Margin (Southern Italy)
title_sort morphological variability of submarine mass movements in the tectonically-controlled calabro-tyrrhenian continental margin (southern italy)
publisher Multidisciplinary Digital Publishing Institute
publishDate 2019-01
url http://hdl.handle.net/10261/197789
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100004271
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