Long-runout landslides with associated longitudinal ridges in Iceland as analogues of Martian landslide deposits
Much work has been done to study the behaviour of long-runout landslides and their associated longitudinal ridges, yet the origin of the hypermobility of such landslides and the formation mechanism of longitudinal ridges are poorly understood. As terrestrial long-runout landslides emplaced on glacie...
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ftdoajarticles:oai:doaj.org/article:67222fffa0454fd2b1e48cc489fbe6c3 2024-09-09T19:37:44+00:00 Long-runout landslides with associated longitudinal ridges in Iceland as analogues of Martian landslide deposits G. Magnarini A. Champagne C. Morino C. Beck M. Philippe A. Decaulne S. J. Conway 2024-05-01T00:00:00Z https://doi.org/10.5194/esurf-12-657-2024 https://doaj.org/article/67222fffa0454fd2b1e48cc489fbe6c3 EN eng Copernicus Publications https://esurf.copernicus.org/articles/12/657/2024/esurf-12-657-2024.pdf https://doaj.org/toc/2196-6311 https://doaj.org/toc/2196-632X doi:10.5194/esurf-12-657-2024 2196-6311 2196-632X https://doaj.org/article/67222fffa0454fd2b1e48cc489fbe6c3 Earth Surface Dynamics, Vol 12, Pp 657-678 (2024) Dynamic and structural geology QE500-639.5 article 2024 ftdoajarticles https://doi.org/10.5194/esurf-12-657-2024 2024-08-05T17:49:26Z Much work has been done to study the behaviour of long-runout landslides and their associated longitudinal ridges, yet the origin of the hypermobility of such landslides and the formation mechanism of longitudinal ridges are poorly understood. As terrestrial long-runout landslides emplaced on glaciers commonly exhibit longitudinal ridges, the presence of these landforms has been used to infer the presence of ice on Mars, where hundreds of well-preserved long-runout landslides with longitudinal ridges are found. However, the presence of the same landforms in regions where extensive glaciations did not occur, for instance, on the Moon and in the Atacama region on Earth, suggests that ice is not the only factor influencing the formation of long-runout landslides with longitudinal ridges. Iceland is a unique region for its high spatial density of well-preserved long-runout landslides with longitudinal ridges. Here, we compiled the first catalogue of Icelandic long-runout landslides with longitudinal ridges, and we compared them with Martian long-runout landslides with longitudinal ridges of similar length. Moreover, we present detailed morphological observations of the Dalvík landslide deposit, in the Tröllaskagi peninsula, Iceland, and compare them with morphological observations of Martian landslides. Our results show that Icelandic long-runout landslides share key features with Martian analogue deposits, including splitting of longitudinal ridges and development of associated en echelon features. Therefore, Icelandic long-runout landslides with longitudinal ridges represent good morphological analogues of Martian long-runout landslides. Moreover, Iceland offers an opportunity to investigate the occurrence of these landforms at a regional scale, as well as their link with deglaciation following the Last Glacial Maximum, which could also provide insights into Martian palaeoclimatic and palaeoenvironmental conditions. Article in Journal/Newspaper Dalvík Iceland Directory of Open Access Journals: DOAJ Articles Earth Surface Dynamics 12 3 657 678 |
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Open Polar |
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Directory of Open Access Journals: DOAJ Articles |
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English |
topic |
Dynamic and structural geology QE500-639.5 |
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Dynamic and structural geology QE500-639.5 G. Magnarini A. Champagne C. Morino C. Beck M. Philippe A. Decaulne S. J. Conway Long-runout landslides with associated longitudinal ridges in Iceland as analogues of Martian landslide deposits |
topic_facet |
Dynamic and structural geology QE500-639.5 |
description |
Much work has been done to study the behaviour of long-runout landslides and their associated longitudinal ridges, yet the origin of the hypermobility of such landslides and the formation mechanism of longitudinal ridges are poorly understood. As terrestrial long-runout landslides emplaced on glaciers commonly exhibit longitudinal ridges, the presence of these landforms has been used to infer the presence of ice on Mars, where hundreds of well-preserved long-runout landslides with longitudinal ridges are found. However, the presence of the same landforms in regions where extensive glaciations did not occur, for instance, on the Moon and in the Atacama region on Earth, suggests that ice is not the only factor influencing the formation of long-runout landslides with longitudinal ridges. Iceland is a unique region for its high spatial density of well-preserved long-runout landslides with longitudinal ridges. Here, we compiled the first catalogue of Icelandic long-runout landslides with longitudinal ridges, and we compared them with Martian long-runout landslides with longitudinal ridges of similar length. Moreover, we present detailed morphological observations of the Dalvík landslide deposit, in the Tröllaskagi peninsula, Iceland, and compare them with morphological observations of Martian landslides. Our results show that Icelandic long-runout landslides share key features with Martian analogue deposits, including splitting of longitudinal ridges and development of associated en echelon features. Therefore, Icelandic long-runout landslides with longitudinal ridges represent good morphological analogues of Martian long-runout landslides. Moreover, Iceland offers an opportunity to investigate the occurrence of these landforms at a regional scale, as well as their link with deglaciation following the Last Glacial Maximum, which could also provide insights into Martian palaeoclimatic and palaeoenvironmental conditions. |
format |
Article in Journal/Newspaper |
author |
G. Magnarini A. Champagne C. Morino C. Beck M. Philippe A. Decaulne S. J. Conway |
author_facet |
G. Magnarini A. Champagne C. Morino C. Beck M. Philippe A. Decaulne S. J. Conway |
author_sort |
G. Magnarini |
title |
Long-runout landslides with associated longitudinal ridges in Iceland as analogues of Martian landslide deposits |
title_short |
Long-runout landslides with associated longitudinal ridges in Iceland as analogues of Martian landslide deposits |
title_full |
Long-runout landslides with associated longitudinal ridges in Iceland as analogues of Martian landslide deposits |
title_fullStr |
Long-runout landslides with associated longitudinal ridges in Iceland as analogues of Martian landslide deposits |
title_full_unstemmed |
Long-runout landslides with associated longitudinal ridges in Iceland as analogues of Martian landslide deposits |
title_sort |
long-runout landslides with associated longitudinal ridges in iceland as analogues of martian landslide deposits |
publisher |
Copernicus Publications |
publishDate |
2024 |
url |
https://doi.org/10.5194/esurf-12-657-2024 https://doaj.org/article/67222fffa0454fd2b1e48cc489fbe6c3 |
genre |
Dalvík Iceland |
genre_facet |
Dalvík Iceland |
op_source |
Earth Surface Dynamics, Vol 12, Pp 657-678 (2024) |
op_relation |
https://esurf.copernicus.org/articles/12/657/2024/esurf-12-657-2024.pdf https://doaj.org/toc/2196-6311 https://doaj.org/toc/2196-632X doi:10.5194/esurf-12-657-2024 2196-6311 2196-632X https://doaj.org/article/67222fffa0454fd2b1e48cc489fbe6c3 |
op_doi |
https://doi.org/10.5194/esurf-12-657-2024 |
container_title |
Earth Surface Dynamics |
container_volume |
12 |
container_issue |
3 |
container_start_page |
657 |
op_container_end_page |
678 |
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1809906844440723456 |