Permafrost and ground ice conditions reported during recent geotechnical investigations in the Mayo district, Yukon territory
The Mayo District, Yukon Territory, lies in the widespread discontinuous permafrost zone. Permafrost thicknesses of up to 40 m have been measured in valleys, and of 135 m at higher elevations. Many observations of ground ice have been made by placer miners, but generally these are unrecorded. Recent...
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1991
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ftcarletonunivir:oai:carleton.ca:22837 2023-05-15T16:36:37+02:00 Permafrost and ground ice conditions reported during recent geotechnical investigations in the Mayo district, Yukon territory Burn, C. (Christopher R.) 1991-01-01 https://ir.library.carleton.ca/pub/22837 https://doi.org/10.1002/ppp.3430020310 en eng https://ir.library.carleton.ca/pub/22837 doi:10.1002/ppp.3430020310 Permafrost and Periglacial Processes vol. 2 no. 3, pp. 259-268 Geothermal flux Ground ice Permafrost distribution info:eu-repo/semantics/article 1991 ftcarletonunivir https://doi.org/10.1002/ppp.3430020310 2022-02-06T21:51:37Z The Mayo District, Yukon Territory, lies in the widespread discontinuous permafrost zone. Permafrost thicknesses of up to 40 m have been measured in valleys, and of 135 m at higher elevations. Many observations of ground ice have been made by placer miners, but generally these are unrecorded. Recently, over 200 shallow geotechnical boreholes have been drilled in the area in association with municipal or highway construction. Ground ice is usually encountered at undisturbed sites within 4 m of the surface. In the main valleys at elevations below 1100 m a.s.l. coarse, clastic, outwash materials, sand dunes and slopes with southerly aspect are usually frost‐free. Stripping of vegetation for construction or placer mining leads to permafrost degradation, but permafrost can re‐establish as vegetation regenerates. Ground temperatures at Mayo and Keno Hill indicate a geothermal flux of over 0.1 W/m2. Copyright Article in Journal/Newspaper Ice Keno Hill Mayo permafrost Permafrost and Periglacial Processes Yukon Carleton University's Institutional Repository Yukon Keno Hill ENVELOPE(-135.307,-135.307,63.908,63.908) Permafrost and Periglacial Processes 2 3 259 268 |
institution |
Open Polar |
collection |
Carleton University's Institutional Repository |
op_collection_id |
ftcarletonunivir |
language |
English |
topic |
Geothermal flux Ground ice Permafrost distribution |
spellingShingle |
Geothermal flux Ground ice Permafrost distribution Burn, C. (Christopher R.) Permafrost and ground ice conditions reported during recent geotechnical investigations in the Mayo district, Yukon territory |
topic_facet |
Geothermal flux Ground ice Permafrost distribution |
description |
The Mayo District, Yukon Territory, lies in the widespread discontinuous permafrost zone. Permafrost thicknesses of up to 40 m have been measured in valleys, and of 135 m at higher elevations. Many observations of ground ice have been made by placer miners, but generally these are unrecorded. Recently, over 200 shallow geotechnical boreholes have been drilled in the area in association with municipal or highway construction. Ground ice is usually encountered at undisturbed sites within 4 m of the surface. In the main valleys at elevations below 1100 m a.s.l. coarse, clastic, outwash materials, sand dunes and slopes with southerly aspect are usually frost‐free. Stripping of vegetation for construction or placer mining leads to permafrost degradation, but permafrost can re‐establish as vegetation regenerates. Ground temperatures at Mayo and Keno Hill indicate a geothermal flux of over 0.1 W/m2. Copyright |
format |
Article in Journal/Newspaper |
author |
Burn, C. (Christopher R.) |
author_facet |
Burn, C. (Christopher R.) |
author_sort |
Burn, C. (Christopher R.) |
title |
Permafrost and ground ice conditions reported during recent geotechnical investigations in the Mayo district, Yukon territory |
title_short |
Permafrost and ground ice conditions reported during recent geotechnical investigations in the Mayo district, Yukon territory |
title_full |
Permafrost and ground ice conditions reported during recent geotechnical investigations in the Mayo district, Yukon territory |
title_fullStr |
Permafrost and ground ice conditions reported during recent geotechnical investigations in the Mayo district, Yukon territory |
title_full_unstemmed |
Permafrost and ground ice conditions reported during recent geotechnical investigations in the Mayo district, Yukon territory |
title_sort |
permafrost and ground ice conditions reported during recent geotechnical investigations in the mayo district, yukon territory |
publishDate |
1991 |
url |
https://ir.library.carleton.ca/pub/22837 https://doi.org/10.1002/ppp.3430020310 |
long_lat |
ENVELOPE(-135.307,-135.307,63.908,63.908) |
geographic |
Yukon Keno Hill |
geographic_facet |
Yukon Keno Hill |
genre |
Ice Keno Hill Mayo permafrost Permafrost and Periglacial Processes Yukon |
genre_facet |
Ice Keno Hill Mayo permafrost Permafrost and Periglacial Processes Yukon |
op_source |
Permafrost and Periglacial Processes vol. 2 no. 3, pp. 259-268 |
op_relation |
https://ir.library.carleton.ca/pub/22837 doi:10.1002/ppp.3430020310 |
op_doi |
https://doi.org/10.1002/ppp.3430020310 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
2 |
container_issue |
3 |
container_start_page |
259 |
op_container_end_page |
268 |
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1766026945132232704 |