CGRG Bibliography of Canadian Geomorphology
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Author : Barry, R.G.; Elliott, D.L.; and Crane, R.G.
Date : 1981
Title : The palaeoclimatic interpretation of exotic pollen peaks in Holocene records from the eastern Canadian Arctic : a discussion
Publication : Review of Palaeobotany and Palynology
Issue : 33(2/4):
Page(s) : 153-167
Abstract
Processes involved in the transport of "exotic" tree pollen and its deposition in eastern Arctic Canada are reviewed. Synoptic meteorological situations favoring transport northward from the boreal forest are analyzed via boundary-layer trajectory computations. To account for reported exotic pollen peaks in Holocene peat deposits on Baffin Island, the necessary increase in frequency of southerly wind components may be as much as an order of magnitude, which could not be accommodated in the available time interval of pollen release, if sources from all of the Canadian boreal forest are considered. If only Labrador sources are involved, the absolute increase in southerly airflow may be unexceptional. ... Other possible factors ... include variable sedimentation rates, variable pollen production, or a non-linear relationship between air-flow frequency and pollen deposition.
Bibliography of Canadian Geomorphology