Modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristics
A method to predict the most probable flow rheology in Alpine debris flows is presented. The methods classifies outcropping rock masses in catchments on the basis of the type of resulting unconsolidated deposits. The grain size distribution of the debris material and the depositional style of past d...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2015-03-01
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| Series: | Frontiers in Earth Science |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/feart.2015.00008/full |
| _version_ | 1811258976293093376 |
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| author | Davide eTiranti Chiara eDeangeli |
| author_facet | Davide eTiranti Chiara eDeangeli |
| author_sort | Davide eTiranti |
| collection | DOAJ |
| description | A method to predict the most probable flow rheology in Alpine debris flows is presented. The methods classifies outcropping rock masses in catchments on the basis of the type of resulting unconsolidated deposits. The grain size distribution of the debris material and the depositional style of past debris flow events are related to the dominant flow processes: viscoplastic and frictional/collisional. Three catchments in the upper Susa Valley (Western Alps), characterized by different lithologies, were selected for numerical analysis carried out with a Cellular Automata code with viscoplastic and frictional/collisional rheologies. The obtained numerical results are in good agreement with in site evidences in terms of depositional patterns, confirming the possibility of choosing the rheology of the debris flow based on the source material within the catchment. |
| first_indexed | 2024-04-12T18:22:37Z |
| format | Article |
| id | doaj.art-7f7982f5ff81418f9325c0ba07b15cb4 |
| institution | Directory Open Access Journal |
| issn | 2296-6463 |
| language | English |
| last_indexed | 2024-04-12T18:22:37Z |
| publishDate | 2015-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Earth Science |
| spelling | doaj.art-7f7982f5ff81418f9325c0ba07b15cb42022-12-22T03:21:21ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632015-03-01310.3389/feart.2015.00008120019Modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristicsDavide eTiranti0Chiara eDeangeli1Regional Agency for Environmental Protection of PiemontePolitecnico di TorinoA method to predict the most probable flow rheology in Alpine debris flows is presented. The methods classifies outcropping rock masses in catchments on the basis of the type of resulting unconsolidated deposits. The grain size distribution of the debris material and the depositional style of past debris flow events are related to the dominant flow processes: viscoplastic and frictional/collisional. Three catchments in the upper Susa Valley (Western Alps), characterized by different lithologies, were selected for numerical analysis carried out with a Cellular Automata code with viscoplastic and frictional/collisional rheologies. The obtained numerical results are in good agreement with in site evidences in terms of depositional patterns, confirming the possibility of choosing the rheology of the debris flow based on the source material within the catchment.http://journal.frontiersin.org/Journal/10.3389/feart.2015.00008/fullWestern AlpsCatchment lithologytorrential sedimentary processesflow rheologycellular automata model |
| spellingShingle | Davide eTiranti Chiara eDeangeli Modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristics Frontiers in Earth Science Western Alps Catchment lithology torrential sedimentary processes flow rheology cellular automata model |
| title | Modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristics |
| title_full | Modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristics |
| title_fullStr | Modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristics |
| title_full_unstemmed | Modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristics |
| title_short | Modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristics |
| title_sort | modeling of debris flow depositional patterns according to the catchments and sediment source areas characteristics |
| topic | Western Alps Catchment lithology torrential sedimentary processes flow rheology cellular automata model |
| url | http://journal.frontiersin.org/Journal/10.3389/feart.2015.00008/full |
| work_keys_str_mv | AT davideetiranti modelingofdebrisflowdepositionalpatternsaccordingtothecatchmentsandsedimentsourceareascharacteristics AT chiaraedeangeli modelingofdebrisflowdepositionalpatternsaccordingtothecatchmentsandsedimentsourceareascharacteristics |