Pollen based Inferences of Post-glacial Vegetation and Paleoclimate Change on Melville Peninsula, Nunavut, Canada
Pollen analysis of a sediment core from Lake SP02, Melville Peninsula, Nunavut, Canada provides a ~6300 year record of post-glacial vegetation and climate change. Dominant local and regional taxa identified include Cyperaceae, Ericaceae, Artemisia, Salix, and Oxyria. Fossil pollen assemblages, polle...
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ftunivtoronto:oai:localhost:1807/30637 2023-05-15T14:56:18+02:00 Pollen based Inferences of Post-glacial Vegetation and Paleoclimate Change on Melville Peninsula, Nunavut, Canada Iamonaco, John-Paul Finkelstein, Sarah A. Geography NO_RESTRICTION http://hdl.handle.net/1807/30637 en_ca eng http://hdl.handle.net/1807/30637 Arctic paleoecology Holocene paleoclimates Pollen analysis Vegetation history Lake sediments Herb tundra Holocene Thermal Maximum Neoglacial cooling Medieval Warm Period 0426 Thesis ftunivtoronto 2020-06-17T11:21:23Z Pollen analysis of a sediment core from Lake SP02, Melville Peninsula, Nunavut, Canada provides a ~6300 year record of post-glacial vegetation and climate change. Dominant local and regional taxa identified include Cyperaceae, Ericaceae, Artemisia, Salix, and Oxyria. Fossil pollen assemblages, pollen accumulations rates, and variations in sediment organic matter, indicate a period of optimal Holocene warmth between 5300-3900 yr BP, followed by a prolonged period of Neoglacial cooling, as well as a period of relative warmth between 1300-1000 yr BP, interpreted as evidence for the Medieval Warm Period. Variations in pollen abundances and accumulations during the 20th century suggest a response to recent warming that is unprecedented since deglaciation of the Peninsula. Comparisons of the timing and rates of multi-scale climate variations for Melville Peninsula with adjacent sites reveal a potential late Holocene shift in the boundary separating continental and maritime climate regions in the eastern Canadian Arctic. MAST Thesis Arctic Climate change Melville Peninsula Nunavut Tundra University of Toronto: Research Repository T-Space Arctic Nunavut Canada Melville Peninsula ENVELOPE(-83.999,-83.999,68.001,68.001) |
institution |
Open Polar |
collection |
University of Toronto: Research Repository T-Space |
op_collection_id |
ftunivtoronto |
language |
English |
topic |
Arctic paleoecology Holocene paleoclimates Pollen analysis Vegetation history Lake sediments Herb tundra Holocene Thermal Maximum Neoglacial cooling Medieval Warm Period 0426 |
spellingShingle |
Arctic paleoecology Holocene paleoclimates Pollen analysis Vegetation history Lake sediments Herb tundra Holocene Thermal Maximum Neoglacial cooling Medieval Warm Period 0426 Iamonaco, John-Paul Pollen based Inferences of Post-glacial Vegetation and Paleoclimate Change on Melville Peninsula, Nunavut, Canada |
topic_facet |
Arctic paleoecology Holocene paleoclimates Pollen analysis Vegetation history Lake sediments Herb tundra Holocene Thermal Maximum Neoglacial cooling Medieval Warm Period 0426 |
description |
Pollen analysis of a sediment core from Lake SP02, Melville Peninsula, Nunavut, Canada provides a ~6300 year record of post-glacial vegetation and climate change. Dominant local and regional taxa identified include Cyperaceae, Ericaceae, Artemisia, Salix, and Oxyria. Fossil pollen assemblages, pollen accumulations rates, and variations in sediment organic matter, indicate a period of optimal Holocene warmth between 5300-3900 yr BP, followed by a prolonged period of Neoglacial cooling, as well as a period of relative warmth between 1300-1000 yr BP, interpreted as evidence for the Medieval Warm Period. Variations in pollen abundances and accumulations during the 20th century suggest a response to recent warming that is unprecedented since deglaciation of the Peninsula. Comparisons of the timing and rates of multi-scale climate variations for Melville Peninsula with adjacent sites reveal a potential late Holocene shift in the boundary separating continental and maritime climate regions in the eastern Canadian Arctic. MAST |
author2 |
Finkelstein, Sarah A. Geography |
format |
Thesis |
author |
Iamonaco, John-Paul |
author_facet |
Iamonaco, John-Paul |
author_sort |
Iamonaco, John-Paul |
title |
Pollen based Inferences of Post-glacial Vegetation and Paleoclimate Change on Melville Peninsula, Nunavut, Canada |
title_short |
Pollen based Inferences of Post-glacial Vegetation and Paleoclimate Change on Melville Peninsula, Nunavut, Canada |
title_full |
Pollen based Inferences of Post-glacial Vegetation and Paleoclimate Change on Melville Peninsula, Nunavut, Canada |
title_fullStr |
Pollen based Inferences of Post-glacial Vegetation and Paleoclimate Change on Melville Peninsula, Nunavut, Canada |
title_full_unstemmed |
Pollen based Inferences of Post-glacial Vegetation and Paleoclimate Change on Melville Peninsula, Nunavut, Canada |
title_sort |
pollen based inferences of post-glacial vegetation and paleoclimate change on melville peninsula, nunavut, canada |
publishDate |
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url |
http://hdl.handle.net/1807/30637 |
long_lat |
ENVELOPE(-83.999,-83.999,68.001,68.001) |
geographic |
Arctic Nunavut Canada Melville Peninsula |
geographic_facet |
Arctic Nunavut Canada Melville Peninsula |
genre |
Arctic Climate change Melville Peninsula Nunavut Tundra |
genre_facet |
Arctic Climate change Melville Peninsula Nunavut Tundra |
op_relation |
http://hdl.handle.net/1807/30637 |
_version_ |
1766328313706446848 |