Paleobotany of Wisconsinan Interstadials, Eastern Great Lakes Region, North America
This study concerns the pollen and plant macrofossils from Mid-Wisconsinan Interstadial sites within the Wisconsinan ice margin in eastern North America. The time period covered is from about 55,000 years BP to 22,500 years BP, an interval much longer than the postglacial. Sediments examined are pri...
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Cambridge University Press (CUP)
1975
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Online Access: | http://dx.doi.org/10.1016/0033-5894(75)90017-4 http://api.elsevier.com/content/article/PII:0033589475900174?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589475900174?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400031665 |
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crcambridgeupr:10.1016/0033-5894(75)90017-4 2024-06-09T07:49:19+00:00 Paleobotany of Wisconsinan Interstadials, Eastern Great Lakes Region, North America Berti, Albert A. 1975 http://dx.doi.org/10.1016/0033-5894(75)90017-4 http://api.elsevier.com/content/article/PII:0033589475900174?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589475900174?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400031665 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Quaternary Research volume 5, issue 4, page 591-619 ISSN 0033-5894 1096-0287 journal-article 1975 crcambridgeupr https://doi.org/10.1016/0033-5894(75)90017-4 2024-05-15T13:09:18Z This study concerns the pollen and plant macrofossils from Mid-Wisconsinan Interstadial sites within the Wisconsinan ice margin in eastern North America. The time period covered is from about 55,000 years BP to 22,500 years BP, an interval much longer than the postglacial. Sediments examined are principally those of large lakes deposited in the Erie and Ontario basins during intervals of ice retreat. The Port Talbot I Interval (from about 55,000 to 50,000 years BP) in the Erie basin is characterized by pollen assemblages alternating from Pinus -dominated zones to ones with abundant Pinus, Quercus , and nonarboreal pollen. These assemblages are interpreted as indicating relatively warm and dry conditions. Mean July temperatures fluctuated between 15 and 21°C. During the succeeding Port Talbot II Interval and Plum Point Interstadial, in both the Erie and Ontario basins, pollen assemblages are characterized by dominant Pinus and Picea . Characteristic macrofossils include needles of the boreal Picea and Larix and leaves of species with a more northerly distribution, such as Dryas integrifolia, Betula glandulosa var. glandulosa, Vaccinium uliginosum var. alpinum , and Salix herbacea . These fossil assemblages are interpreted as indicating cooler and moister conditions in a forest-tundra environment. Mean July temperatures fluctuated between 10 and 15°C during the Port Talbot II Interval and Plum Point Interstadial. Article in Journal/Newspaper Salix herbacea Tundra Cambridge University Press Plum Point ENVELOPE(-56.881,-56.881,51.067,51.067) Quaternary Research 5 4 591 619 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
This study concerns the pollen and plant macrofossils from Mid-Wisconsinan Interstadial sites within the Wisconsinan ice margin in eastern North America. The time period covered is from about 55,000 years BP to 22,500 years BP, an interval much longer than the postglacial. Sediments examined are principally those of large lakes deposited in the Erie and Ontario basins during intervals of ice retreat. The Port Talbot I Interval (from about 55,000 to 50,000 years BP) in the Erie basin is characterized by pollen assemblages alternating from Pinus -dominated zones to ones with abundant Pinus, Quercus , and nonarboreal pollen. These assemblages are interpreted as indicating relatively warm and dry conditions. Mean July temperatures fluctuated between 15 and 21°C. During the succeeding Port Talbot II Interval and Plum Point Interstadial, in both the Erie and Ontario basins, pollen assemblages are characterized by dominant Pinus and Picea . Characteristic macrofossils include needles of the boreal Picea and Larix and leaves of species with a more northerly distribution, such as Dryas integrifolia, Betula glandulosa var. glandulosa, Vaccinium uliginosum var. alpinum , and Salix herbacea . These fossil assemblages are interpreted as indicating cooler and moister conditions in a forest-tundra environment. Mean July temperatures fluctuated between 10 and 15°C during the Port Talbot II Interval and Plum Point Interstadial. |
format |
Article in Journal/Newspaper |
author |
Berti, Albert A. |
spellingShingle |
Berti, Albert A. Paleobotany of Wisconsinan Interstadials, Eastern Great Lakes Region, North America |
author_facet |
Berti, Albert A. |
author_sort |
Berti, Albert A. |
title |
Paleobotany of Wisconsinan Interstadials, Eastern Great Lakes Region, North America |
title_short |
Paleobotany of Wisconsinan Interstadials, Eastern Great Lakes Region, North America |
title_full |
Paleobotany of Wisconsinan Interstadials, Eastern Great Lakes Region, North America |
title_fullStr |
Paleobotany of Wisconsinan Interstadials, Eastern Great Lakes Region, North America |
title_full_unstemmed |
Paleobotany of Wisconsinan Interstadials, Eastern Great Lakes Region, North America |
title_sort |
paleobotany of wisconsinan interstadials, eastern great lakes region, north america |
publisher |
Cambridge University Press (CUP) |
publishDate |
1975 |
url |
http://dx.doi.org/10.1016/0033-5894(75)90017-4 http://api.elsevier.com/content/article/PII:0033589475900174?httpAccept=text/xml http://api.elsevier.com/content/article/PII:0033589475900174?httpAccept=text/plain https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033589400031665 |
long_lat |
ENVELOPE(-56.881,-56.881,51.067,51.067) |
geographic |
Plum Point |
geographic_facet |
Plum Point |
genre |
Salix herbacea Tundra |
genre_facet |
Salix herbacea Tundra |
op_source |
Quaternary Research volume 5, issue 4, page 591-619 ISSN 0033-5894 1096-0287 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1016/0033-5894(75)90017-4 |
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Quaternary Research |
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5 |
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4 |
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591 |
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619 |
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1801381761560608768 |