Modern and Late Holocene Retrogressive Thaw Slump Activity on the Yukon Coastal Plain and Herschel Island, Yukon Territory, Canada
Four retrogressive thaw slumps (RTS) located on Herschel Island and the Yukon coast (King Point) in the western Canadian Arctic were investigated to compare the environmental, sedimentological and geochemical setting and characteristics of zones in active and stabilised slumps and at undisturbed sit...
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Online Access: | https://doi.org/10.1002/ppp.1731 |
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ftrepec:oai:RePEc:wly:perpro:v:23:y:2012:i:1:p:39-51 2023-05-15T15:03:19+02:00 Modern and Late Holocene Retrogressive Thaw Slump Activity on the Yukon Coastal Plain and Herschel Island, Yukon Territory, Canada H. Lantuit W. H. Pollard N. Couture M. Fritz L. Schirrmeister H. Meyer H.‐W. Hubberten https://doi.org/10.1002/ppp.1731 unknown https://doi.org/10.1002/ppp.1731 article ftrepec https://doi.org/10.1002/ppp.1731 2020-12-04T13:31:25Z Four retrogressive thaw slumps (RTS) located on Herschel Island and the Yukon coast (King Point) in the western Canadian Arctic were investigated to compare the environmental, sedimentological and geochemical setting and characteristics of zones in active and stabilised slumps and at undisturbed sites. In general, the slope, sedimentology and biogeochemistry of stabilised and undisturbed zones differ, independent of their age or location. Organic carbon contents were lower in slumps than in the surrounding tundra, and the density and compaction of slump sediments were much greater. Radiocarbon dating showed that RTS were likely to have been active around 300 a BP and are undergoing a similar period of increased activity now. This cycle is thought to be controlled more by local geometry, cryostratigraphy and the rate of coastal erosion than by variation in summer temperatures. Copyright © 2012 John Wiley & Sons, Ltd. Article in Journal/Newspaper Arctic Herschel Herschel Island Tundra Yukon RePEc (Research Papers in Economics) Arctic Yukon Canada Herschel Island ENVELOPE(-139.089,-139.089,69.583,69.583) King Point ENVELOPE(-55.467,-55.467,-63.167,-63.167) Permafrost and Periglacial Processes 23 1 39 51 |
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Open Polar |
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RePEc (Research Papers in Economics) |
op_collection_id |
ftrepec |
language |
unknown |
description |
Four retrogressive thaw slumps (RTS) located on Herschel Island and the Yukon coast (King Point) in the western Canadian Arctic were investigated to compare the environmental, sedimentological and geochemical setting and characteristics of zones in active and stabilised slumps and at undisturbed sites. In general, the slope, sedimentology and biogeochemistry of stabilised and undisturbed zones differ, independent of their age or location. Organic carbon contents were lower in slumps than in the surrounding tundra, and the density and compaction of slump sediments were much greater. Radiocarbon dating showed that RTS were likely to have been active around 300 a BP and are undergoing a similar period of increased activity now. This cycle is thought to be controlled more by local geometry, cryostratigraphy and the rate of coastal erosion than by variation in summer temperatures. Copyright © 2012 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
H. Lantuit W. H. Pollard N. Couture M. Fritz L. Schirrmeister H. Meyer H.‐W. Hubberten |
spellingShingle |
H. Lantuit W. H. Pollard N. Couture M. Fritz L. Schirrmeister H. Meyer H.‐W. Hubberten Modern and Late Holocene Retrogressive Thaw Slump Activity on the Yukon Coastal Plain and Herschel Island, Yukon Territory, Canada |
author_facet |
H. Lantuit W. H. Pollard N. Couture M. Fritz L. Schirrmeister H. Meyer H.‐W. Hubberten |
author_sort |
H. Lantuit |
title |
Modern and Late Holocene Retrogressive Thaw Slump Activity on the Yukon Coastal Plain and Herschel Island, Yukon Territory, Canada |
title_short |
Modern and Late Holocene Retrogressive Thaw Slump Activity on the Yukon Coastal Plain and Herschel Island, Yukon Territory, Canada |
title_full |
Modern and Late Holocene Retrogressive Thaw Slump Activity on the Yukon Coastal Plain and Herschel Island, Yukon Territory, Canada |
title_fullStr |
Modern and Late Holocene Retrogressive Thaw Slump Activity on the Yukon Coastal Plain and Herschel Island, Yukon Territory, Canada |
title_full_unstemmed |
Modern and Late Holocene Retrogressive Thaw Slump Activity on the Yukon Coastal Plain and Herschel Island, Yukon Territory, Canada |
title_sort |
modern and late holocene retrogressive thaw slump activity on the yukon coastal plain and herschel island, yukon territory, canada |
url |
https://doi.org/10.1002/ppp.1731 |
long_lat |
ENVELOPE(-139.089,-139.089,69.583,69.583) ENVELOPE(-55.467,-55.467,-63.167,-63.167) |
geographic |
Arctic Yukon Canada Herschel Island King Point |
geographic_facet |
Arctic Yukon Canada Herschel Island King Point |
genre |
Arctic Herschel Herschel Island Tundra Yukon |
genre_facet |
Arctic Herschel Herschel Island Tundra Yukon |
op_relation |
https://doi.org/10.1002/ppp.1731 |
op_doi |
https://doi.org/10.1002/ppp.1731 |
container_title |
Permafrost and Periglacial Processes |
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23 |
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1 |
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39 |
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51 |
_version_ |
1766335192012685312 |