Late Quaternary vegetational history of the Howard Pass area, northwestern Alaska

Palynological records from Tukuto and Etivlik Lakes contribute to an improved understanding of the late Quaternary history of vegetation in the Howard Pass area of northern Alaska. During the Itkillik II glaciation (24-14 ka BP), the vegetation of the western Arctic Foothills was sparse, xeric tundr...

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Bibliographic Details
Published inCanadian journal of botany Vol. 77; no. 4; pp. 570 - 581
Main Authors Oswald, W.W, Brubaker, L.B, Anderson, P.M
Format Journal Article
LanguageEnglish
Published Ottawa Canadian Science Publishing NRC Research Press 28.09.1999
Subjects
Botany
Flowers & plants
geographical variation
Glaciation
ground cover
Lakes
landscapes
Mosses
Paleobotany
paleoecology
palynology
plant communities
Plant growth
Pollen
Quaternary
Tundra
Vegetation
Alaska
United States > US
Alaska United States
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Summary:Palynological records from Tukuto and Etivlik Lakes contribute to an improved understanding of the late Quaternary history of vegetation in the Howard Pass area of northern Alaska. During the Itkillik II glaciation (24-14 ka BP), the vegetation of the western Arctic Foothills was sparse, xeric tundra, as evidenced by taxa indicative of dry, rocky substrates (e.g., Selaginella rupestris (L.) Spring, Chenopodiaceae, and Encalypta cf. rhaptocarpa) and very low pollen accumulation rates in this interval of the 30-ka-old Tukuto Lake record.
ISSN:0008-4026
1916-2790
1480-3305
1916-2804
DOI:10.1139/b99-027