Late Quaternary Vegetation in the Southwestern Columbia Basin, Washington
A 33,000-yr pollen record from Carp Lake provides information on the vegetation history of the forest/steppe border in the southwestern Columbia Basin. The site is located in the Pinus ponderosa Zone but through much of late Quaternary time the area was probably treeless. Pollen assemblages in sedim...
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Cambridge University Press (CUP)
1985
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Online Access: | http://dx.doi.org/10.1016/0033-5894(85)90075-4 http://api.elsevier.com/content/article/PII:0033589485900754?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589485900754?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400017191 |
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crcambridgeupr:10.1016/0033-5894(85)90075-4 2024-06-09T07:50:02+00:00 Late Quaternary Vegetation in the Southwestern Columbia Basin, Washington Barnosky, Cathy W. 1985 http://dx.doi.org/10.1016/0033-5894(85)90075-4 http://api.elsevier.com/content/article/PII:0033589485900754?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589485900754?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400017191 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 23, issue 1, page 109-122 ISSN 0033-5894 1096-0287 journal-article 1985 crcambridgeupr https://doi.org/10.1016/0033-5894(85)90075-4 2024-05-15T13:10:22Z A 33,000-yr pollen record from Carp Lake provides information on the vegetation history of the forest/steppe border in the southwestern Columbia Basin. The site is located in the Pinus ponderosa Zone but through much of late Quaternary time the area was probably treeless. Pollen assemblages in sediments dating from 33,000 to 23,500 yr B.P. suggest a period of temperate climate and steppe coinciding with the end of the Olympia Interglaciation. The Fraser Glaciation (ca. 25,000–10,000 yr B.P.) was a period of periglacial steppe or tundra vegetation and conditions too dry and cold to support forests at low altitudes. Aridity is also inferred from the low level of the lake between 21,000 and 8500 yr B.P., and especially after about 13,500 yr B.P. About 10,000 yr B.P. Chenopodiineae and other temperate taxa spread locally, providing palynological evidence for a shift from cold, dry to warm, dry conditions. Pine woodland developed at the site with the onset of humid conditions at 8500 yr B.P.; further cooling is suggested at 4000 yr B.P., when Pseudotsuga and Abies were established locally. Article in Journal/Newspaper Tundra Cambridge University Press Quaternary Research 23 1 109 122 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
A 33,000-yr pollen record from Carp Lake provides information on the vegetation history of the forest/steppe border in the southwestern Columbia Basin. The site is located in the Pinus ponderosa Zone but through much of late Quaternary time the area was probably treeless. Pollen assemblages in sediments dating from 33,000 to 23,500 yr B.P. suggest a period of temperate climate and steppe coinciding with the end of the Olympia Interglaciation. The Fraser Glaciation (ca. 25,000–10,000 yr B.P.) was a period of periglacial steppe or tundra vegetation and conditions too dry and cold to support forests at low altitudes. Aridity is also inferred from the low level of the lake between 21,000 and 8500 yr B.P., and especially after about 13,500 yr B.P. About 10,000 yr B.P. Chenopodiineae and other temperate taxa spread locally, providing palynological evidence for a shift from cold, dry to warm, dry conditions. Pine woodland developed at the site with the onset of humid conditions at 8500 yr B.P.; further cooling is suggested at 4000 yr B.P., when Pseudotsuga and Abies were established locally. |
format |
Article in Journal/Newspaper |
author |
Barnosky, Cathy W. |
spellingShingle |
Barnosky, Cathy W. Late Quaternary Vegetation in the Southwestern Columbia Basin, Washington |
author_facet |
Barnosky, Cathy W. |
author_sort |
Barnosky, Cathy W. |
title |
Late Quaternary Vegetation in the Southwestern Columbia Basin, Washington |
title_short |
Late Quaternary Vegetation in the Southwestern Columbia Basin, Washington |
title_full |
Late Quaternary Vegetation in the Southwestern Columbia Basin, Washington |
title_fullStr |
Late Quaternary Vegetation in the Southwestern Columbia Basin, Washington |
title_full_unstemmed |
Late Quaternary Vegetation in the Southwestern Columbia Basin, Washington |
title_sort |
late quaternary vegetation in the southwestern columbia basin, washington |
publisher |
Cambridge University Press (CUP) |
publishDate |
1985 |
url |
http://dx.doi.org/10.1016/0033-5894(85)90075-4 http://api.elsevier.com/content/article/PII:0033589485900754?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589485900754?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400017191 |
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Tundra |
genre_facet |
Tundra |
op_source |
Quaternary Research volume 23, issue 1, page 109-122 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(85)90075-4 |
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Quaternary Research |
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23 |
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1 |
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109 |
op_container_end_page |
122 |
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1801383003220344832 |