Palynological Studies of Lake Sediment Profiles from Southwestern New Brunswick
Lake sediment cores from two lakes yielded pollen profiles which reflect vegetational and climatic changes since deglaciation. Radiocarbon dates from specific levels outline the chronology. Correlation of pollen zones between the two profiles indicate the degree of error in the anomalously old dates...
Published in: | Canadian Journal of Earth Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
1975
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Online Access: | http://dx.doi.org/10.1139/e75-024 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-024 |
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crcansciencepubl:10.1139/e75-024 2024-05-19T07:49:38+00:00 Palynological Studies of Lake Sediment Profiles from Southwestern New Brunswick Mott, R. J. 1975 http://dx.doi.org/10.1139/e75-024 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-024 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 12, issue 2, page 273-288 ISSN 0008-4077 1480-3313 journal-article 1975 crcansciencepubl https://doi.org/10.1139/e75-024 2024-04-25T06:52:02Z Lake sediment cores from two lakes yielded pollen profiles which reflect vegetational and climatic changes since deglaciation. Radiocarbon dates from specific levels outline the chronology. Correlation of pollen zones between the two profiles indicate the degree of error in the anomalously old dates from one of the sites. Total absolute pollen frequencies are used to aid in interpretation.Following deglaciation a tundra environment prevailed until about 12 000 radiocarbon years B.P. This was followed by a transition zone in which Betula and Populus were abundant. About 12 000 years B.P. Picea increased markedly and remained a dominant part of the vegetation until 9500 years B.P. when Pinus and Quercus became prominent. Tsuga and various hardwood genera predominated after 6500 years B.P. An increase in Picea and decline in Tsuga and some hardwood genera produced the forests which prevailed when the area was settled. Article in Journal/Newspaper Tundra Canadian Science Publishing Canadian Journal of Earth Sciences 12 2 273 288 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Lake sediment cores from two lakes yielded pollen profiles which reflect vegetational and climatic changes since deglaciation. Radiocarbon dates from specific levels outline the chronology. Correlation of pollen zones between the two profiles indicate the degree of error in the anomalously old dates from one of the sites. Total absolute pollen frequencies are used to aid in interpretation.Following deglaciation a tundra environment prevailed until about 12 000 radiocarbon years B.P. This was followed by a transition zone in which Betula and Populus were abundant. About 12 000 years B.P. Picea increased markedly and remained a dominant part of the vegetation until 9500 years B.P. when Pinus and Quercus became prominent. Tsuga and various hardwood genera predominated after 6500 years B.P. An increase in Picea and decline in Tsuga and some hardwood genera produced the forests which prevailed when the area was settled. |
format |
Article in Journal/Newspaper |
author |
Mott, R. J. |
spellingShingle |
Mott, R. J. Palynological Studies of Lake Sediment Profiles from Southwestern New Brunswick |
author_facet |
Mott, R. J. |
author_sort |
Mott, R. J. |
title |
Palynological Studies of Lake Sediment Profiles from Southwestern New Brunswick |
title_short |
Palynological Studies of Lake Sediment Profiles from Southwestern New Brunswick |
title_full |
Palynological Studies of Lake Sediment Profiles from Southwestern New Brunswick |
title_fullStr |
Palynological Studies of Lake Sediment Profiles from Southwestern New Brunswick |
title_full_unstemmed |
Palynological Studies of Lake Sediment Profiles from Southwestern New Brunswick |
title_sort |
palynological studies of lake sediment profiles from southwestern new brunswick |
publisher |
Canadian Science Publishing |
publishDate |
1975 |
url |
http://dx.doi.org/10.1139/e75-024 http://www.nrcresearchpress.com/doi/pdf/10.1139/e75-024 |
genre |
Tundra |
genre_facet |
Tundra |
op_source |
Canadian Journal of Earth Sciences volume 12, issue 2, page 273-288 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e75-024 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
12 |
container_issue |
2 |
container_start_page |
273 |
op_container_end_page |
288 |
_version_ |
1799468160409141248 |