ENVIRONMENTAL CONTROLS ON THE GENERATION OF SUBMARINE LANDSLIDES IN ARCTIC FIORDS: AN EXAMPLE FROM PANGNIRTUNG FIORD, EASTERN BAFFIN ISLAND, NUNAVUT
High-latitude fiords are susceptible to hazardous submarine and subaerial mass movements. Landslide ages calculated from radiocarbon dating and 210Pb/137Cs activities indicate that 8 of the 11 dated landslides are younger than 500 years. Landslide-surface roughness was tested as a proxy for age, but...
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ftdalhouse:oai:DalSpace.library.dal.ca:10222/81620 2023-05-15T15:02:59+02:00 ENVIRONMENTAL CONTROLS ON THE GENERATION OF SUBMARINE LANDSLIDES IN ARCTIC FIORDS: AN EXAMPLE FROM PANGNIRTUNG FIORD, EASTERN BAFFIN ISLAND, NUNAVUT Sedore, Philip Department of Earth and Environmental Sciences Master of Applied Science Dr. Andree Blais-Stevens Yana Fedorchuk Dr. Calvin Campbell Dr. Owen Sherwood Dr. Vittorio Maselli Dr. Alexandre Normandeau Not Applicable 2022-04-28T11:57:25Z http://hdl.handle.net/10222/81620 en eng http://hdl.handle.net/10222/81620 Geological hazards Fiords Landforms Landslides 2022 ftdalhouse 2022-07-30T23:10:36Z High-latitude fiords are susceptible to hazardous submarine and subaerial mass movements. Landslide ages calculated from radiocarbon dating and 210Pb/137Cs activities indicate that 8 of the 11 dated landslides are younger than 500 years. Landslide-surface roughness was tested as a proxy for age, but the relationship was found to be weak, thus limiting the ability to accurately date all identified landslides. Four broad categories of submarine landslide environments were identified, and it was shown that at least 53% (96 of 180) of landslides are associated with subaerial sources and, at most, 31% (56 of 180) are shallow-water, non-subaerially influenced. These categories suggests that triggers of most submarine landslides within Pangnirtung Fiord include rapid flood-water input, subaerial debris flows and sea-ice loading during low tide. Other/Unknown Material Arctic Baffin Island Baffin Nunavut Pangnirtung Sea ice Dalhousie University: DalSpace Institutional Repository Arctic Baffin Island Nunavut Pangnirtung ENVELOPE(-65.707,-65.707,66.145,66.145) Pangnirtung Fiord ENVELOPE(-65.624,-65.624,66.124,66.124) |
institution |
Open Polar |
collection |
Dalhousie University: DalSpace Institutional Repository |
op_collection_id |
ftdalhouse |
language |
English |
topic |
Geological hazards Fiords Landforms Landslides |
spellingShingle |
Geological hazards Fiords Landforms Landslides Sedore, Philip ENVIRONMENTAL CONTROLS ON THE GENERATION OF SUBMARINE LANDSLIDES IN ARCTIC FIORDS: AN EXAMPLE FROM PANGNIRTUNG FIORD, EASTERN BAFFIN ISLAND, NUNAVUT |
topic_facet |
Geological hazards Fiords Landforms Landslides |
description |
High-latitude fiords are susceptible to hazardous submarine and subaerial mass movements. Landslide ages calculated from radiocarbon dating and 210Pb/137Cs activities indicate that 8 of the 11 dated landslides are younger than 500 years. Landslide-surface roughness was tested as a proxy for age, but the relationship was found to be weak, thus limiting the ability to accurately date all identified landslides. Four broad categories of submarine landslide environments were identified, and it was shown that at least 53% (96 of 180) of landslides are associated with subaerial sources and, at most, 31% (56 of 180) are shallow-water, non-subaerially influenced. These categories suggests that triggers of most submarine landslides within Pangnirtung Fiord include rapid flood-water input, subaerial debris flows and sea-ice loading during low tide. |
author2 |
Department of Earth and Environmental Sciences Master of Applied Science Dr. Andree Blais-Stevens Yana Fedorchuk Dr. Calvin Campbell Dr. Owen Sherwood Dr. Vittorio Maselli Dr. Alexandre Normandeau Not Applicable |
author |
Sedore, Philip |
author_facet |
Sedore, Philip |
author_sort |
Sedore, Philip |
title |
ENVIRONMENTAL CONTROLS ON THE GENERATION OF SUBMARINE LANDSLIDES IN ARCTIC FIORDS: AN EXAMPLE FROM PANGNIRTUNG FIORD, EASTERN BAFFIN ISLAND, NUNAVUT |
title_short |
ENVIRONMENTAL CONTROLS ON THE GENERATION OF SUBMARINE LANDSLIDES IN ARCTIC FIORDS: AN EXAMPLE FROM PANGNIRTUNG FIORD, EASTERN BAFFIN ISLAND, NUNAVUT |
title_full |
ENVIRONMENTAL CONTROLS ON THE GENERATION OF SUBMARINE LANDSLIDES IN ARCTIC FIORDS: AN EXAMPLE FROM PANGNIRTUNG FIORD, EASTERN BAFFIN ISLAND, NUNAVUT |
title_fullStr |
ENVIRONMENTAL CONTROLS ON THE GENERATION OF SUBMARINE LANDSLIDES IN ARCTIC FIORDS: AN EXAMPLE FROM PANGNIRTUNG FIORD, EASTERN BAFFIN ISLAND, NUNAVUT |
title_full_unstemmed |
ENVIRONMENTAL CONTROLS ON THE GENERATION OF SUBMARINE LANDSLIDES IN ARCTIC FIORDS: AN EXAMPLE FROM PANGNIRTUNG FIORD, EASTERN BAFFIN ISLAND, NUNAVUT |
title_sort |
environmental controls on the generation of submarine landslides in arctic fiords: an example from pangnirtung fiord, eastern baffin island, nunavut |
publishDate |
2022 |
url |
http://hdl.handle.net/10222/81620 |
long_lat |
ENVELOPE(-65.707,-65.707,66.145,66.145) ENVELOPE(-65.624,-65.624,66.124,66.124) |
geographic |
Arctic Baffin Island Nunavut Pangnirtung Pangnirtung Fiord |
geographic_facet |
Arctic Baffin Island Nunavut Pangnirtung Pangnirtung Fiord |
genre |
Arctic Baffin Island Baffin Nunavut Pangnirtung Sea ice |
genre_facet |
Arctic Baffin Island Baffin Nunavut Pangnirtung Sea ice |
op_relation |
http://hdl.handle.net/10222/81620 |
_version_ |
1766334906386874368 |