Experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand

(IF 3.41; Q1) International audience Identifying the driving mechanisms of soft‐sediment deformation in the geological record is the subject of debate. Thawing of ice‐rich clayey silt above permafrost was proved experimentally to be among the processes capable of triggering deformation. However, pre...

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Published in:Sedimentology
Main Authors: Bertran, Pascal, Font, Marianne, Giret, Arnaud, Manchuel, Kevin, Sicilia, Deborah
Other Authors: De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Morphodynamique Continentale et Côtière (M2C), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS), EDF (EDF)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2019
Subjects:
Ice
Online Access:https://normandie-univ.hal.science/hal-01891824
https://doi.org/10.1111/sed.12537
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record_format openpolar
spelling ftinsu:oai:HAL:hal-01891824v1 2024-04-14T08:12:55+00:00 Experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand Bertran, Pascal Font, Marianne Giret, Arnaud Manchuel, Kevin Sicilia, Deborah De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA) Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS) Morphodynamique Continentale et Côtière (M2C) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN) Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS) EDF (EDF) 2019 https://normandie-univ.hal.science/hal-01891824 https://doi.org/10.1111/sed.12537 en eng HAL CCSD Blackwell Publishing info:eu-repo/semantics/altIdentifier/doi/10.1111/sed.12537 hal-01891824 https://normandie-univ.hal.science/hal-01891824 doi:10.1111/sed.12537 ISSN: 0037-0746 EISSN: 1365-3091 Sedimentology https://normandie-univ.hal.science/hal-01891824 Sedimentology, 2019, 66, pp.1102-1117. ⟨10.1111/sed.12537⟩ ice‐cored mound Fluidization soft‐sediment deformation laboratory experiment intrusion ice [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2019 ftinsu https://doi.org/10.1111/sed.12537 2024-03-21T17:22:07Z (IF 3.41; Q1) International audience Identifying the driving mechanisms of soft‐sediment deformation in the geological record is the subject of debate. Thawing of ice‐rich clayey silt above permafrost was proved experimentally to be among the processes capable of triggering deformation. However, previous work failed so far to reproduce similar structures in sand. This study investigates fluidization and intrusive ice formation from soil models in the laboratory. Experimental conditions reproduce the growth of ice‐cored mounds caused by pore water pressure increase during freeze‐back of sand in permafrost context. Excess pore water pressure causes hydraulic fracturing and the development of water lenses beneath the freezing front. Later freezing of the water lenses generates intrusive ice. The main structures consist of sand dykes and sills formed when the increase in pore water pressure exceeds a critical threshold, and soft‐sediment deformations induced by subsidence during ice melt. The combination of processes has resulted in diapir‐like structures. The experimental structures are similar to those described in Pleistocene sites from France. These processes constitute a credible alternative to the seismic hypothesis evoked to explain soft‐sediment deformation structures in other European regions subjected to Pleistocene cold climates. Article in Journal/Newspaper Ice permafrost Institut national des sciences de l'Univers: HAL-INSU Sedimentology 66 3 1102 1117
institution Open Polar
collection Institut national des sciences de l'Univers: HAL-INSU
op_collection_id ftinsu
language English
topic ice‐cored mound
Fluidization
soft‐sediment deformation
laboratory experiment
intrusion ice
[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
spellingShingle ice‐cored mound
Fluidization
soft‐sediment deformation
laboratory experiment
intrusion ice
[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
Bertran, Pascal
Font, Marianne
Giret, Arnaud
Manchuel, Kevin
Sicilia, Deborah
Experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand
topic_facet ice‐cored mound
Fluidization
soft‐sediment deformation
laboratory experiment
intrusion ice
[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
description (IF 3.41; Q1) International audience Identifying the driving mechanisms of soft‐sediment deformation in the geological record is the subject of debate. Thawing of ice‐rich clayey silt above permafrost was proved experimentally to be among the processes capable of triggering deformation. However, previous work failed so far to reproduce similar structures in sand. This study investigates fluidization and intrusive ice formation from soil models in the laboratory. Experimental conditions reproduce the growth of ice‐cored mounds caused by pore water pressure increase during freeze‐back of sand in permafrost context. Excess pore water pressure causes hydraulic fracturing and the development of water lenses beneath the freezing front. Later freezing of the water lenses generates intrusive ice. The main structures consist of sand dykes and sills formed when the increase in pore water pressure exceeds a critical threshold, and soft‐sediment deformations induced by subsidence during ice melt. The combination of processes has resulted in diapir‐like structures. The experimental structures are similar to those described in Pleistocene sites from France. These processes constitute a credible alternative to the seismic hypothesis evoked to explain soft‐sediment deformation structures in other European regions subjected to Pleistocene cold climates.
author2 De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA)
Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS)
Morphodynamique Continentale et Côtière (M2C)
Université de Caen Normandie (UNICAEN)
Normandie Université (NU)-Normandie Université (NU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rouen Normandie (UNIROUEN)
Normandie Université (NU)-Centre National de la Recherche Scientifique (CNRS)
EDF (EDF)
format Article in Journal/Newspaper
author Bertran, Pascal
Font, Marianne
Giret, Arnaud
Manchuel, Kevin
Sicilia, Deborah
author_facet Bertran, Pascal
Font, Marianne
Giret, Arnaud
Manchuel, Kevin
Sicilia, Deborah
author_sort Bertran, Pascal
title Experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand
title_short Experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand
title_full Experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand
title_fullStr Experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand
title_full_unstemmed Experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand
title_sort experimental soft-sediment deformation caused by fluidization and intrusive ice melt in sand
publisher HAL CCSD
publishDate 2019
url https://normandie-univ.hal.science/hal-01891824
https://doi.org/10.1111/sed.12537
genre Ice
permafrost
genre_facet Ice
permafrost
op_source ISSN: 0037-0746
EISSN: 1365-3091
Sedimentology
https://normandie-univ.hal.science/hal-01891824
Sedimentology, 2019, 66, pp.1102-1117. ⟨10.1111/sed.12537⟩
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1111/sed.12537
hal-01891824
https://normandie-univ.hal.science/hal-01891824
doi:10.1111/sed.12537
op_doi https://doi.org/10.1111/sed.12537
container_title Sedimentology
container_volume 66
container_issue 3
container_start_page 1102
op_container_end_page 1117
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