Dynamics and mass balance of the 2007 Cima Una rockfall (Eastern Alps, Italy)
On October 12th, 2007 about 40,000 m3 of dolomitic rock detached from the northern wall of the peak known as "Cima Una" (Val Fiscalina, Sesto Dolomites, Bolzano, Italy), and fell 900 m to Fiscalina Valley below. The event generated a dense dust cloud, which traveled up to 4 km from the sou...
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ftunibolognairis:oai:cris.unibo.it:11585/862626 2024-04-28T08:36:03+00:00 Dynamics and mass balance of the 2007 Cima Una rockfall (Eastern Alps, Italy) Viero A. Furlanis S. Squarzoni C. Teza G. Galgaro A. Gianolla P. Viero A. Furlanis S. Squarzoni C. Teza G. Galgaro A. Gianolla P. 2013 STAMPA http://hdl.handle.net/11585/862626 https://doi.org/10.1007/s10346-012-0338-4 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000323204700002 volume:10 issue:4 firstpage:393 lastpage:408 numberofpages:16 journal:LANDSLIDES http://hdl.handle.net/11585/862626 doi:10.1007/s10346-012-0338-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84883817560 Airblast Alp Dolomite Dust cloud Laser scanning Rockfall info:eu-repo/semantics/article 2013 ftunibolognairis https://doi.org/10.1007/s10346-012-0338-4 2024-04-05T00:33:14Z On October 12th, 2007 about 40,000 m3 of dolomitic rock detached from the northern wall of the peak known as "Cima Una" (Val Fiscalina, Sesto Dolomites, Bolzano, Italy), and fell 900 m to Fiscalina Valley below. The event generated a dense dust cloud, which traveled up to 4 km from the source area. The failure surface was formed by two near-vertical surfaces, almost perpendicular to each other. The orientation of these surfaces is consistent with two of the main regional tectonic sets. Only a small portion of the fallen material appeared to be preserved as blocks deposited at the base of the rock wall. About a fifth of the fallen mass was deposited on a colluvial cone. The missing mass, estimated to be about 80 %, may be represented by highly fragmented rock in part deposited as sand on the valley floor and in part dispersed as a dense dust cloud generated during the rockfall. There appears to be a deficit of deposited material, which could lead underestimation in the calculation of rock-cliff recession rates. The dynamics of the rockfall, strongly conditioned by the local topography, partially explains the intense rock breakage and the generation of the dust cloud. The rockfall was not caused by an external trigger, such as an earthquake or heavy rainfall; the failure was most likely progressive due to mechanical and physical degradation along highly stressed failure surfaces, possibly promoted by permafrost degradation and freeze and thaw processes. © 2012 Springer-Verlag. Article in Journal/Newspaper permafrost IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Landslides 10 4 393 408 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
Airblast Alp Dolomite Dust cloud Laser scanning Rockfall |
spellingShingle |
Airblast Alp Dolomite Dust cloud Laser scanning Rockfall Viero A. Furlanis S. Squarzoni C. Teza G. Galgaro A. Gianolla P. Dynamics and mass balance of the 2007 Cima Una rockfall (Eastern Alps, Italy) |
topic_facet |
Airblast Alp Dolomite Dust cloud Laser scanning Rockfall |
description |
On October 12th, 2007 about 40,000 m3 of dolomitic rock detached from the northern wall of the peak known as "Cima Una" (Val Fiscalina, Sesto Dolomites, Bolzano, Italy), and fell 900 m to Fiscalina Valley below. The event generated a dense dust cloud, which traveled up to 4 km from the source area. The failure surface was formed by two near-vertical surfaces, almost perpendicular to each other. The orientation of these surfaces is consistent with two of the main regional tectonic sets. Only a small portion of the fallen material appeared to be preserved as blocks deposited at the base of the rock wall. About a fifth of the fallen mass was deposited on a colluvial cone. The missing mass, estimated to be about 80 %, may be represented by highly fragmented rock in part deposited as sand on the valley floor and in part dispersed as a dense dust cloud generated during the rockfall. There appears to be a deficit of deposited material, which could lead underestimation in the calculation of rock-cliff recession rates. The dynamics of the rockfall, strongly conditioned by the local topography, partially explains the intense rock breakage and the generation of the dust cloud. The rockfall was not caused by an external trigger, such as an earthquake or heavy rainfall; the failure was most likely progressive due to mechanical and physical degradation along highly stressed failure surfaces, possibly promoted by permafrost degradation and freeze and thaw processes. © 2012 Springer-Verlag. |
author2 |
Viero A. Furlanis S. Squarzoni C. Teza G. Galgaro A. Gianolla P. |
format |
Article in Journal/Newspaper |
author |
Viero A. Furlanis S. Squarzoni C. Teza G. Galgaro A. Gianolla P. |
author_facet |
Viero A. Furlanis S. Squarzoni C. Teza G. Galgaro A. Gianolla P. |
author_sort |
Viero A. |
title |
Dynamics and mass balance of the 2007 Cima Una rockfall (Eastern Alps, Italy) |
title_short |
Dynamics and mass balance of the 2007 Cima Una rockfall (Eastern Alps, Italy) |
title_full |
Dynamics and mass balance of the 2007 Cima Una rockfall (Eastern Alps, Italy) |
title_fullStr |
Dynamics and mass balance of the 2007 Cima Una rockfall (Eastern Alps, Italy) |
title_full_unstemmed |
Dynamics and mass balance of the 2007 Cima Una rockfall (Eastern Alps, Italy) |
title_sort |
dynamics and mass balance of the 2007 cima una rockfall (eastern alps, italy) |
publishDate |
2013 |
url |
http://hdl.handle.net/11585/862626 https://doi.org/10.1007/s10346-012-0338-4 |
genre |
permafrost |
genre_facet |
permafrost |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000323204700002 volume:10 issue:4 firstpage:393 lastpage:408 numberofpages:16 journal:LANDSLIDES http://hdl.handle.net/11585/862626 doi:10.1007/s10346-012-0338-4 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84883817560 |
op_doi |
https://doi.org/10.1007/s10346-012-0338-4 |
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10 |
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393 |
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