Litho-structural control, morphotectonics, and deep-seated gravitational deformations in the evolution of Alpine relief: A case study in the lower Susa Valley (Italian Western Alps)

Cadoppi, Paola; Giardino, Marco; Perrone, Gennaro; Tallone, Sergio

doi:10.1016/j.quaint.2006.10.015

Cited by 22 publications

(20 citation statements)

References 8 publications

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“…In spite of their paucity, these data are consistent with the extensional reactivation of the LTZ and CFZ in the adjoining domains ( Fig. 13d, e ;Cadoppi et al 2007;Balestro et al 2009a). This indicates that an extensional tectonic regime affected the entire crustal block, principally reactivating the N-S discontinuities as normal faults, although the extensional reactivation of the other fault systems may not be excluded, as transtensive and normal movements have been found along these faults.…”

Section: Correlation With the Adjacent Sectors Of The Northern Cottiasupporting

confidence: 81%

“…These new data may represent a further constraint for the kinematic model of the internal Western Alps and give a better insight into the mechanisms that drove its tectonic evolution by Late Oligocene times. Structural setting of the Northern Cottian Alps (after Cadoppi et al 2007) with published thermo-chronological data. Zircon fission track (FT) data from Bernet et al (2001); Apatite FT data from Cadoppi et al (2002a), Balestrieri et al (2004), Malusà et al (2005), Tricart et al (2007) and Schwartz et al (2008) …”

Section: Figmentioning

confidence: 99%

“…This structure runs from the Lower Susa Valley to the Middle Chisone Valley, juxtaposing in its southern termination different units of an oceanic setting (Cadoppi et al 2002b). The kinematics of the CFZ has evolved from right-lateral to normal Cadoppi et al 2007). Pleistocene to Holocene deposits displaced by mesoscale normal faults (Carraro et al 2002;Giardino and Polino 1997;Polino et al 2002) and neotectonic landforms suggest that their late extensional activity was protracted until the Quaternary Longitudinal Fault system (Fig.…”

Section: Regional Fault Systems Of the Inner Central-western Alpsmentioning

confidence: 99%

“…Though the westward terminations of the SFS and the CF are still not known, the western boundary of the considered block may be represented by the Colle delle Finestre Deformation Zone (CFZ; Cadoppi et al 2002bCadoppi et al , 2007Tallone et al 2002), as west of this structure E-W striking faults are not present and the main brittle tectonic feature is represented by the Transverse Fault system (see Figs. 1, 2).…”

Section: Correlation With the Adjacent Sectors Of The Northern Cottiamentioning

confidence: 99%

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Post-collisional tectonics in the Northern Cottian Alps (Italian Western Alps)

Perrone

Cadoppi

Tallone

et al. 2010

Int J Earth Sci (Geol Rundsch)

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Field mapping and structural analysis have allowed us to characterise the fault geometry and the postmetamorphic tectonics of an area located in the Northern Cottian Alps (inner Western Alps). Two main faulting stages were distinguished here. The first (Oligocene?-Early Miocene) is related to the development of an E-W-striking left-normal shear zone. This shear zone is interpreted as an antithetical of two regional, N-S right-lateral structures: the Col del Lis-Trana Deformation Zone (LTZ) and the Colle delle Finestre Deformation Zone (CFZ). The second faulting stage (post-Early Miocene) is related mainly to the development of N-S normal faults, coeval with the extensional reactivation of the LTZ and the CFZ. We discuss this kinematic evolution in the framework of the geodynamic evolution of the Western Alps.

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Section: Correlation With the Adjacent Sectors Of The Northern Cottiasupporting

confidence: 81%

Section: Figmentioning

confidence: 99%

Section: Regional Fault Systems Of the Inner Central-western Alpsmentioning

confidence: 99%

Section: Correlation With the Adjacent Sectors Of The Northern Cottiamentioning

confidence: 99%

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Post-collisional tectonics in the Northern Cottian Alps (Italian Western Alps)

Perrone

Cadoppi

Tallone

et al. 2010

Int J Earth Sci (Geol Rundsch)

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“…in Cadoppi et al 2007). Later, it has been shown that most of the glacial basins of the former large piedmont glaciers of the River Po catchment area are indicated by deep lakes such as Lago di Garda (350 m water depth), Lago Maggiore (370 m) and Lago di Como (410 m) (Figs.…”

Section: Southern Alps (Mediterranean Drainage System)mentioning

confidence: 98%

Distribution, geometry, age and origin of overdeepened valleys and basins in the Alps and their foreland

2010

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Overdeepened valleys and basins are commonly found below the present landscape surface in areas that were affected by Quaternary glaciations. Overdeepened troughs and their sedimentary fillings are important in applied geology, for example, for geotechnics of deep foundations and tunnelling, groundwater resource management, and radioactive waste disposal. This publication is an overview of the areal distribution and the geometry of overdeepened troughs in the Alps and their foreland, and summarises the present knowledge of the age and potential processes that may have caused deep erosion. It is shown that overdeepened features within the Alps concur mainly with tectonic structures and/or weak lithologies as well as with Pleistocene ice confluence and partly also diffluence situations. In the foreland, overdeepening is found as elongated buried valleys, mainly oriented in the direction of former ice flow, and glacially scoured basins in the ablation area of glaciers. Some buried deeply incised valleys were generated by fluvial down-cutting during the Messinian crisis but this mechanism of formation applies only for the southern side of the Alps. Lithostratigraphic records and dating evidence reveal that overdeepened valleys were repeatedly occupied and excavated by glaciers during past glaciations. However, the age of the original formation of (non-Messinian) overdeepened structures remains unknown. The mechanisms causing overdeepening also remain unidentified and it can only be speculated that pressurised meltwater played an important role in this context.

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Mapping Post-fire Monthly Erosion Rates at the Catchment Scale Using Empirical Models Implemented in GIS. A Case Study in Northern Italy

Vacha

Mandrone

Morresi

et al. 2023

Progress in Landslide Research and Technology, Volume 1 Issue 1, 2022

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Post-wildfire geological hazards are an emerging problem for a number of different environments, including areas not typically associated with these events such as the Alpine Region. The risk connected with post-fire processes such as debris-flows and flood-type events threatens people, infrastructures, services and economical activities. Apart from a few examples, such as in the USA and Australia, there is a lack of models available to quantify the increase in susceptibility of the aforementioned phenomena as a result of the modification induced by the wildfires. In this work we test the application of a modified version of the RUSLE, on GIS, to quantify the post-fire erosive phenomena for a case study in the north-western Italian Alps. The results of its application, taking advantage of high-resolution rainfall series and data deriving from field surveys, highlight the marked increase (more than 20 times) in erosion rates, quantified by expressing both the EI (erodibility index), the A (monthly soil loss) and the SL (monthly sediment loss) rise. The months of April, May and June represent the larger share of the total quantities. This is a consequence of the noticeable increase of the EI, which for the post-fire scenario is more than one order of magnitude higher than the pre-fire one.

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Litho-structural control, morphotectonics, and deep-seated gravitational deformations in the evolution of Alpine relief: A case study in the lower Susa Valley (Italian Western Alps)

Cited by 22 publications

References 8 publications

Post-collisional tectonics in the Northern Cottian Alps (Italian Western Alps)

Post-collisional tectonics in the Northern Cottian Alps (Italian Western Alps)

Distribution, geometry, age and origin of overdeepened valleys and basins in the Alps and their foreland

Mapping Post-fire Monthly Erosion Rates at the Catchment Scale Using Empirical Models Implemented in GIS. A Case Study in Northern Italy

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