Rock walls distribution and Holocene evolution in a mid-latitude mountain range (the Romanian Carpathians)
International audience Rock walls in high mountain areas are the expression of long-term slopes response (10 3-10 5 years) to tectonics, weathering and denudation and a major source of sediment and hazard. Mountain rock walls (RW) characteristics and evolution at mountain-range scale is rarely discu...
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Format: | Article in Journal/Newspaper |
Language: | English |
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2022
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Online Access: | https://amu.hal.science/hal-03702052 https://amu.hal.science/hal-03702052/document https://amu.hal.science/hal-03702052/file/GEOMOR-11671.pdf https://doi.org/10.1016/j.geomorph.2022.108351 |
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ftunivaixmarseil:oai:HAL:hal-03702052v1 2023-12-17T10:48:40+01:00 Rock walls distribution and Holocene evolution in a mid-latitude mountain range (the Romanian Carpathians) Vasile, Mirela Vespremeanu-Stroe, Alfred Pascal, Daniela Braucher, Regis Pleșoianue, Alin Popescu, Răzva Etzelmüller, Bernd Research Institute of the University of Bucharest (ICUB) University of Bucharest (UniBuc) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ESRI Romania University of Oslo (UiO) 2022-06-15 https://amu.hal.science/hal-03702052 https://amu.hal.science/hal-03702052/document https://amu.hal.science/hal-03702052/file/GEOMOR-11671.pdf https://doi.org/10.1016/j.geomorph.2022.108351 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2022.108351 hal-03702052 https://amu.hal.science/hal-03702052 https://amu.hal.science/hal-03702052/document https://amu.hal.science/hal-03702052/file/GEOMOR-11671.pdf doi:10.1016/j.geomorph.2022.108351 WOS: 000831581800005 info:eu-repo/semantics/OpenAccess ISSN: 0169-555X Geomorphology https://amu.hal.science/hal-03702052 Geomorphology, 2022, pp.108351. ⟨10.1016/j.geomorph.2022.108351⟩ rock wall morphometry lithology rock slope failures Romanian Carpathians [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDE.MCG]Environmental Sciences/Global Changes [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology info:eu-repo/semantics/article Journal articles 2022 ftunivaixmarseil https://doi.org/10.1016/j.geomorph.2022.108351 2023-11-21T23:39:54Z International audience Rock walls in high mountain areas are the expression of long-term slopes response (10 3-10 5 years) to tectonics, weathering and denudation and a major source of sediment and hazard. Mountain rock walls (RW) characteristics and evolution at mountain-range scale is rarely discussed in the literature. Using a database of 791 RW mapped in the Romanian Carpathians, we present their distribution and morphometry in respect to lithological class, structural features and topography and relate them to post-Younger Dryas (Holocene) rock slope failure chronology. Morphometric data indicate that metamorphic and igneous RW (linked to a great extent to glacial valleys and cirques headwalls) are usually restricted to the highest sectors of the mountain slopes, are characterized by reduced relative heights and have an asymmetrical distribution, being common on the North-exposed slopes but extremely rare on the South. Statistical analysis results show the high significance of structural and tectonic control on RW distribution in sedimentary units which imposes the predominance of West and North orientations and RW dimensions up to a degree higher than in other lithologies. Based on 38 10 Be surface exposure ages obtained on metric boulders from the Southern and Eastern Carpathians, we hypothesise that metamorphic and igneous RW in the formerly glaciated Carpathian valleys were significantly shaped during Early Holocene (before 9 ka) by rock slope failures events that followed the deglaciation of the highest cirques and the intense RW permafrost degradation. We associate the long-term imprints of frost weathering to the significant North/South RW and rock glaciers distribution asymmetry, also identified in other mid-latitude mountain sites with similar topographic constraints. Article in Journal/Newspaper permafrost Aix-Marseille Université: HAL Geomorphology 108351 |
institution |
Open Polar |
collection |
Aix-Marseille Université: HAL |
op_collection_id |
ftunivaixmarseil |
language |
English |
topic |
rock wall morphometry lithology rock slope failures Romanian Carpathians [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDE.MCG]Environmental Sciences/Global Changes [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
spellingShingle |
rock wall morphometry lithology rock slope failures Romanian Carpathians [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDE.MCG]Environmental Sciences/Global Changes [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology Vasile, Mirela Vespremeanu-Stroe, Alfred Pascal, Daniela Braucher, Regis Pleșoianue, Alin Popescu, Răzva Etzelmüller, Bernd Rock walls distribution and Holocene evolution in a mid-latitude mountain range (the Romanian Carpathians) |
topic_facet |
rock wall morphometry lithology rock slope failures Romanian Carpathians [SDU.STU.TE]Sciences of the Universe [physics]/Earth Sciences/Tectonics [SDE.MCG]Environmental Sciences/Global Changes [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology |
description |
International audience Rock walls in high mountain areas are the expression of long-term slopes response (10 3-10 5 years) to tectonics, weathering and denudation and a major source of sediment and hazard. Mountain rock walls (RW) characteristics and evolution at mountain-range scale is rarely discussed in the literature. Using a database of 791 RW mapped in the Romanian Carpathians, we present their distribution and morphometry in respect to lithological class, structural features and topography and relate them to post-Younger Dryas (Holocene) rock slope failure chronology. Morphometric data indicate that metamorphic and igneous RW (linked to a great extent to glacial valleys and cirques headwalls) are usually restricted to the highest sectors of the mountain slopes, are characterized by reduced relative heights and have an asymmetrical distribution, being common on the North-exposed slopes but extremely rare on the South. Statistical analysis results show the high significance of structural and tectonic control on RW distribution in sedimentary units which imposes the predominance of West and North orientations and RW dimensions up to a degree higher than in other lithologies. Based on 38 10 Be surface exposure ages obtained on metric boulders from the Southern and Eastern Carpathians, we hypothesise that metamorphic and igneous RW in the formerly glaciated Carpathian valleys were significantly shaped during Early Holocene (before 9 ka) by rock slope failures events that followed the deglaciation of the highest cirques and the intense RW permafrost degradation. We associate the long-term imprints of frost weathering to the significant North/South RW and rock glaciers distribution asymmetry, also identified in other mid-latitude mountain sites with similar topographic constraints. |
author2 |
Research Institute of the University of Bucharest (ICUB) University of Bucharest (UniBuc) Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) ESRI Romania University of Oslo (UiO) |
format |
Article in Journal/Newspaper |
author |
Vasile, Mirela Vespremeanu-Stroe, Alfred Pascal, Daniela Braucher, Regis Pleșoianue, Alin Popescu, Răzva Etzelmüller, Bernd |
author_facet |
Vasile, Mirela Vespremeanu-Stroe, Alfred Pascal, Daniela Braucher, Regis Pleșoianue, Alin Popescu, Răzva Etzelmüller, Bernd |
author_sort |
Vasile, Mirela |
title |
Rock walls distribution and Holocene evolution in a mid-latitude mountain range (the Romanian Carpathians) |
title_short |
Rock walls distribution and Holocene evolution in a mid-latitude mountain range (the Romanian Carpathians) |
title_full |
Rock walls distribution and Holocene evolution in a mid-latitude mountain range (the Romanian Carpathians) |
title_fullStr |
Rock walls distribution and Holocene evolution in a mid-latitude mountain range (the Romanian Carpathians) |
title_full_unstemmed |
Rock walls distribution and Holocene evolution in a mid-latitude mountain range (the Romanian Carpathians) |
title_sort |
rock walls distribution and holocene evolution in a mid-latitude mountain range (the romanian carpathians) |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://amu.hal.science/hal-03702052 https://amu.hal.science/hal-03702052/document https://amu.hal.science/hal-03702052/file/GEOMOR-11671.pdf https://doi.org/10.1016/j.geomorph.2022.108351 |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
ISSN: 0169-555X Geomorphology https://amu.hal.science/hal-03702052 Geomorphology, 2022, pp.108351. ⟨10.1016/j.geomorph.2022.108351⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.geomorph.2022.108351 hal-03702052 https://amu.hal.science/hal-03702052 https://amu.hal.science/hal-03702052/document https://amu.hal.science/hal-03702052/file/GEOMOR-11671.pdf doi:10.1016/j.geomorph.2022.108351 WOS: 000831581800005 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.geomorph.2022.108351 |
container_title |
Geomorphology |
container_start_page |
108351 |
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1785572904664039424 |