A Late-Pleistocene Glacial Sequence from Prince of Wales Island, Alaska
Describes two tills exposed in the Maybeso Creek valley on the east coast of the island, differing in stratigraphic position and degree of weathering. The younger is blue-gray, compacted and weathered to 3 ft depth; the older is coarse, leached and with a particle of surface oxidation that suggests...
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The Arctic Institute of North America
1969
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ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/66241 2023-05-15T14:19:19+02:00 A Late-Pleistocene Glacial Sequence from Prince of Wales Island, Alaska Swanston, D.N. 1969-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66241 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66241/50154 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66241 ARCTIC; Vol. 22 No. 1 (1969): March: 1–84; 25-33 1923-1245 0004-0843 Glacial deposits Leaching Moraines Sediments (Geology) Weathering Deglaciation Glaciation info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1969 ftunivcalgaryojs 2022-03-22T21:23:07Z Describes two tills exposed in the Maybeso Creek valley on the east coast of the island, differing in stratigraphic position and degree of weathering. The younger is blue-gray, compacted and weathered to 3 ft depth; the older is coarse, leached and with a particle of surface oxidation that suggests it is a remnant of the B horizon of a fossil till soil truncated by advance of the glacier that deposited the younger till. Such a twofold division of glacial deposits is found elsewhere in Southeast Alaska and may represent advances of the Wisconsin glaciation. Four recessional moraines of the younger till mark stillstands during the final retreat of the last glacier. Séquence glaciaire fini-pléistocène sur l'île du Prince-de-Galles, Alaska. Des preuves de deux avancées glaciaires fini-pléistocènes apparaissent dans la vallée du ruisseau Maybeso. Un till cimenté "plus jeune", avec une mince zone météorisée, recouvre directement un till "plus vieux" complètement lessivé et partiellement oxidé. Le till plus jeune a été déposé par une glaciation d'extension régionale représentant la dernière avancée glaciaire majeure de l'âge Wisconsin classique dans le sud-est de l'Alaska. Le till plus vieux pourrait aussi correspondre à une glaciation régionale, que l'on pourrait relier à un âge Wisconsin intermédiaire ou fini-ancien.Dans la vallée, quatre moraines de récession marquent les dernières pulsations de la glaciation qui déposa le till plus jeune au cours de la première partie de l'interglaciaire précédant l'Hypsithermal. Article in Journal/Newspaper Arctic glacier Prince of Wales Island Alaska University of Calgary Journal Hosting Prince of Wales Island ENVELOPE(-99.001,-99.001,72.668,72.668) ARCTIC 22 1 |
institution |
Open Polar |
collection |
University of Calgary Journal Hosting |
op_collection_id |
ftunivcalgaryojs |
language |
English |
topic |
Glacial deposits Leaching Moraines Sediments (Geology) Weathering Deglaciation Glaciation |
spellingShingle |
Glacial deposits Leaching Moraines Sediments (Geology) Weathering Deglaciation Glaciation Swanston, D.N. A Late-Pleistocene Glacial Sequence from Prince of Wales Island, Alaska |
topic_facet |
Glacial deposits Leaching Moraines Sediments (Geology) Weathering Deglaciation Glaciation |
description |
Describes two tills exposed in the Maybeso Creek valley on the east coast of the island, differing in stratigraphic position and degree of weathering. The younger is blue-gray, compacted and weathered to 3 ft depth; the older is coarse, leached and with a particle of surface oxidation that suggests it is a remnant of the B horizon of a fossil till soil truncated by advance of the glacier that deposited the younger till. Such a twofold division of glacial deposits is found elsewhere in Southeast Alaska and may represent advances of the Wisconsin glaciation. Four recessional moraines of the younger till mark stillstands during the final retreat of the last glacier. Séquence glaciaire fini-pléistocène sur l'île du Prince-de-Galles, Alaska. Des preuves de deux avancées glaciaires fini-pléistocènes apparaissent dans la vallée du ruisseau Maybeso. Un till cimenté "plus jeune", avec une mince zone météorisée, recouvre directement un till "plus vieux" complètement lessivé et partiellement oxidé. Le till plus jeune a été déposé par une glaciation d'extension régionale représentant la dernière avancée glaciaire majeure de l'âge Wisconsin classique dans le sud-est de l'Alaska. Le till plus vieux pourrait aussi correspondre à une glaciation régionale, que l'on pourrait relier à un âge Wisconsin intermédiaire ou fini-ancien.Dans la vallée, quatre moraines de récession marquent les dernières pulsations de la glaciation qui déposa le till plus jeune au cours de la première partie de l'interglaciaire précédant l'Hypsithermal. |
format |
Article in Journal/Newspaper |
author |
Swanston, D.N. |
author_facet |
Swanston, D.N. |
author_sort |
Swanston, D.N. |
title |
A Late-Pleistocene Glacial Sequence from Prince of Wales Island, Alaska |
title_short |
A Late-Pleistocene Glacial Sequence from Prince of Wales Island, Alaska |
title_full |
A Late-Pleistocene Glacial Sequence from Prince of Wales Island, Alaska |
title_fullStr |
A Late-Pleistocene Glacial Sequence from Prince of Wales Island, Alaska |
title_full_unstemmed |
A Late-Pleistocene Glacial Sequence from Prince of Wales Island, Alaska |
title_sort |
late-pleistocene glacial sequence from prince of wales island, alaska |
publisher |
The Arctic Institute of North America |
publishDate |
1969 |
url |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66241 |
long_lat |
ENVELOPE(-99.001,-99.001,72.668,72.668) |
geographic |
Prince of Wales Island |
geographic_facet |
Prince of Wales Island |
genre |
Arctic glacier Prince of Wales Island Alaska |
genre_facet |
Arctic glacier Prince of Wales Island Alaska |
op_source |
ARCTIC; Vol. 22 No. 1 (1969): March: 1–84; 25-33 1923-1245 0004-0843 |
op_relation |
https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66241/50154 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/66241 |
container_title |
ARCTIC |
container_volume |
22 |
container_issue |
1 |
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1766291035085864960 |