Deep-seated gravitational slope deformation involving glacial evidence in the Rodoretto Valley (NW Alps)

The Rodoretto Valley (about 25 km2) (Western Alps, NW Italy) shaped in the metamorphic bedrock, covered by Quaternary sediments, is involved in significant deep-seated gravitational slope deformation (DSGSD). A detailed field survey revealed several morpho-structures typically related to DSGSD pheno...

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Main Authors: M. Gabriella Forno, Marco Gattiglio, Stefano Ghignone, Glenda Taddia
Format: Article
Language:English
Published: Taylor & Francis Group 2021-12-01
Series:Journal of Maps
Subjects:
Online Access:http://dx.doi.org/10.1080/17445647.2021.1996476
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author M. Gabriella Forno
Marco Gattiglio
Stefano Ghignone
Glenda Taddia
author_facet M. Gabriella Forno
Marco Gattiglio
Stefano Ghignone
Glenda Taddia
author_sort M. Gabriella Forno
collection DOAJ
description The Rodoretto Valley (about 25 km2) (Western Alps, NW Italy) shaped in the metamorphic bedrock, covered by Quaternary sediments, is involved in significant deep-seated gravitational slope deformation (DSGSD). A detailed field survey revealed several morpho-structures typically related to DSGSD phenomena (open fractures, doubled ridges, scarps, trenches, counterscarps and bulging reliefs) and other significant gravitational morphologies, here defined as gravitational valleys, not previously reported in geological literature.Fieldwork also allowed us to distinguish various types of glacial sediments, reconstructing the supply basins, relatively dating glacialism to LGM and Late Glacial-Holocene and evaluating their gravitational dislocation. The wide extension of the area characterized by DSGSD and incredibly big dimension of single morpho-structures are the most important recognized features. In particular, we observed that entire sectors of the study area were gravitatively conditioned not only by local slid along the Rodoretto slopes but also by movement towards the nearby and deeper Germanasca Valley.
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spelling doaj.art-f9eebf79a65a4fd28d4bf27318e456152022-12-21T17:24:35ZengTaylor & Francis GroupJournal of Maps1744-56472021-12-0117270571710.1080/17445647.2021.19964761996476Deep-seated gravitational slope deformation involving glacial evidence in the Rodoretto Valley (NW Alps)M. Gabriella Forno0Marco Gattiglio1Stefano Ghignone2Glenda Taddia3Università degli Studi di TorinoUniversità degli Studi di TorinoUniversità degli Studi di Torinodel Territorio e delle InfrastruttureThe Rodoretto Valley (about 25 km2) (Western Alps, NW Italy) shaped in the metamorphic bedrock, covered by Quaternary sediments, is involved in significant deep-seated gravitational slope deformation (DSGSD). A detailed field survey revealed several morpho-structures typically related to DSGSD phenomena (open fractures, doubled ridges, scarps, trenches, counterscarps and bulging reliefs) and other significant gravitational morphologies, here defined as gravitational valleys, not previously reported in geological literature.Fieldwork also allowed us to distinguish various types of glacial sediments, reconstructing the supply basins, relatively dating glacialism to LGM and Late Glacial-Holocene and evaluating their gravitational dislocation. The wide extension of the area characterized by DSGSD and incredibly big dimension of single morpho-structures are the most important recognized features. In particular, we observed that entire sectors of the study area were gravitatively conditioned not only by local slid along the Rodoretto slopes but also by movement towards the nearby and deeper Germanasca Valley.http://dx.doi.org/10.1080/17445647.2021.1996476deep seated gravitational slope deformationglacial shapingquaternaryalpine geomorphologygermanasca valley
spellingShingle M. Gabriella Forno
Marco Gattiglio
Stefano Ghignone
Glenda Taddia
Deep-seated gravitational slope deformation involving glacial evidence in the Rodoretto Valley (NW Alps)
Journal of Maps
deep seated gravitational slope deformation
glacial shaping
quaternary
alpine geomorphology
germanasca valley
title Deep-seated gravitational slope deformation involving glacial evidence in the Rodoretto Valley (NW Alps)
title_full Deep-seated gravitational slope deformation involving glacial evidence in the Rodoretto Valley (NW Alps)
title_fullStr Deep-seated gravitational slope deformation involving glacial evidence in the Rodoretto Valley (NW Alps)
title_full_unstemmed Deep-seated gravitational slope deformation involving glacial evidence in the Rodoretto Valley (NW Alps)
title_short Deep-seated gravitational slope deformation involving glacial evidence in the Rodoretto Valley (NW Alps)
title_sort deep seated gravitational slope deformation involving glacial evidence in the rodoretto valley nw alps
topic deep seated gravitational slope deformation
glacial shaping
quaternary
alpine geomorphology
germanasca valley
url http://dx.doi.org/10.1080/17445647.2021.1996476
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