The Full-Glacial Environment of the Northern Seward Peninsula, Alaska, Reconstructed from the 21,500-Year-Old Kitluk Paleosol
Abstract Paleoenvironmental conditions are reconstructed from soils buried under volcanic ash ca. 21,500 years ago on the Seward Peninsula. Soil development was minimal, reflecting the continuous regional deposition of loess, which originated from river floodplains and the exposed Chukchi shelf. Cry...
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2000
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crcambridgeupr:10.1006/qres.1999.2097 2024-09-30T14:30:57+00:00 The Full-Glacial Environment of the Northern Seward Peninsula, Alaska, Reconstructed from the 21,500-Year-Old Kitluk Paleosol Höfle, Claudia Edwards, Mary E. Hopkins, David M. Mann, Daniel H. Ping, Chien-Lu 2000 http://dx.doi.org/10.1006/qres.1999.2097 http://api.elsevier.com/content/article/PII:S0033589499920975?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589499920975?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S003358940003060X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 53, issue 2, page 143-153 ISSN 0033-5894 1096-0287 journal-article 2000 crcambridgeupr https://doi.org/10.1006/qres.1999.2097 2024-09-04T04:04:42Z Abstract Paleoenvironmental conditions are reconstructed from soils buried under volcanic ash ca. 21,500 years ago on the Seward Peninsula. Soil development was minimal, reflecting the continuous regional deposition of loess, which originated from river floodplains and the exposed Chukchi shelf. Cryoturbated soil horizons, ice wedges, and ice-lens formation indicate a permafrost environment and mean annual temperatures below −6° to −8°C. Shallow active layers (average 45 cm), minimal evidence for chemical leaching of soils, and the presence of earthen hummocks indicate a cold and seasonally dry climate. Neither steppe nor polar desert soils are appropriate analogues for these zonal soils of loess-covered central Beringia. No exact analogues are known; however, soils underlying dry tundra near the arctic coast of northern Yakutia, Russia, and under moist, nonacidic tundra of the Alaskan North Slope have properties in common with the buried soils. Article in Journal/Newspaper Arctic Chukchi Ice north slope permafrost polar desert Seward Peninsula Tundra wedge* Yakutia Alaska Beringia Cambridge University Press Arctic Chukchi Shelf ENVELOPE(-169.167,-169.167,70.550,70.550) Quaternary Research 53 2 143 153 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract Paleoenvironmental conditions are reconstructed from soils buried under volcanic ash ca. 21,500 years ago on the Seward Peninsula. Soil development was minimal, reflecting the continuous regional deposition of loess, which originated from river floodplains and the exposed Chukchi shelf. Cryoturbated soil horizons, ice wedges, and ice-lens formation indicate a permafrost environment and mean annual temperatures below −6° to −8°C. Shallow active layers (average 45 cm), minimal evidence for chemical leaching of soils, and the presence of earthen hummocks indicate a cold and seasonally dry climate. Neither steppe nor polar desert soils are appropriate analogues for these zonal soils of loess-covered central Beringia. No exact analogues are known; however, soils underlying dry tundra near the arctic coast of northern Yakutia, Russia, and under moist, nonacidic tundra of the Alaskan North Slope have properties in common with the buried soils. |
format |
Article in Journal/Newspaper |
author |
Höfle, Claudia Edwards, Mary E. Hopkins, David M. Mann, Daniel H. Ping, Chien-Lu |
spellingShingle |
Höfle, Claudia Edwards, Mary E. Hopkins, David M. Mann, Daniel H. Ping, Chien-Lu The Full-Glacial Environment of the Northern Seward Peninsula, Alaska, Reconstructed from the 21,500-Year-Old Kitluk Paleosol |
author_facet |
Höfle, Claudia Edwards, Mary E. Hopkins, David M. Mann, Daniel H. Ping, Chien-Lu |
author_sort |
Höfle, Claudia |
title |
The Full-Glacial Environment of the Northern Seward Peninsula, Alaska, Reconstructed from the 21,500-Year-Old Kitluk Paleosol |
title_short |
The Full-Glacial Environment of the Northern Seward Peninsula, Alaska, Reconstructed from the 21,500-Year-Old Kitluk Paleosol |
title_full |
The Full-Glacial Environment of the Northern Seward Peninsula, Alaska, Reconstructed from the 21,500-Year-Old Kitluk Paleosol |
title_fullStr |
The Full-Glacial Environment of the Northern Seward Peninsula, Alaska, Reconstructed from the 21,500-Year-Old Kitluk Paleosol |
title_full_unstemmed |
The Full-Glacial Environment of the Northern Seward Peninsula, Alaska, Reconstructed from the 21,500-Year-Old Kitluk Paleosol |
title_sort |
full-glacial environment of the northern seward peninsula, alaska, reconstructed from the 21,500-year-old kitluk paleosol |
publisher |
Cambridge University Press (CUP) |
publishDate |
2000 |
url |
http://dx.doi.org/10.1006/qres.1999.2097 http://api.elsevier.com/content/article/PII:S0033589499920975?httpAccept=text/xml http://api.elsevier.com/content/article/PII:S0033589499920975?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S003358940003060X |
long_lat |
ENVELOPE(-169.167,-169.167,70.550,70.550) |
geographic |
Arctic Chukchi Shelf |
geographic_facet |
Arctic Chukchi Shelf |
genre |
Arctic Chukchi Ice north slope permafrost polar desert Seward Peninsula Tundra wedge* Yakutia Alaska Beringia |
genre_facet |
Arctic Chukchi Ice north slope permafrost polar desert Seward Peninsula Tundra wedge* Yakutia Alaska Beringia |
op_source |
Quaternary Research volume 53, issue 2, page 143-153 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1006/qres.1999.2097 |
container_title |
Quaternary Research |
container_volume |
53 |
container_issue |
2 |
container_start_page |
143 |
op_container_end_page |
153 |
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1811635670664347648 |