Palynological Analysis of a Peat Core from Imnavait Creek, the North Slope, Alaska

The pollen record of a 160 cm peat core from Imnavait Creek, a small upland basin in the northern foothills of the Brooks Range, Alaska, reveals a history of vegetation change from the early Holocene to the present. The Alnus rise within the region occurred after 8500 yr B.P. Betula and Cyperaceae a...

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Bibliographic Details
Published in:ARCTIC
Main Author: Eisner, Wendy R.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 1991
Subjects:
Cores
Palaeobotany
Palaeoclimatology
Palynology
Peat
Recent epoch
Alaska
Northern
Imnavait Creek region
Yukon
Northern Foothills
Arctic
Brooks Range
north slope
Tundra
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64605
Description
Summary:The pollen record of a 160 cm peat core from Imnavait Creek, a small upland basin in the northern foothills of the Brooks Range, Alaska, reveals a history of vegetation change from the early Holocene to the present. The Alnus rise within the region occurred after 8500 yr B.P. Betula and Cyperaceae are the major floristic elements throughout the diagram, and this, along with the significant levels of Salix and Ericaceae, suggest that the area was characterized by a mosaic of herb and shrub tundra communities, dependent on variations in terrain and moisture availability.Key words: palynology, Peat , North Slope, Alaska, pollen, Brooks Range, vegetation history, Holocene Mots clés: “Paleontologie”, tourbière, pente nord, Alaska, pollen, Brooks Range, histoire de la végétation, holocène

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