HR: 0800h
AN: PP51C-0616    [Abstracts]
TI: Pollen analysis of Early Eocene laminated sediments from the Okanagan Highlands, British Columbia
AU: * Moss, P T
EM: patrick.moss@uq.edu.au
AF: School of Geography, Planning and Architecture, The University of Queensland, Brisbane, QLD 4072 Australia
AU: Greenwood, D R
EM: greenwoodD@brandonu.ca
AF: Environmental Science, Brandon University, 18th Street, Brandon, MB R7A 6A9 Canada
AU: Archibald, S B
EM: barchibald@oeb.harvard.edu
AF: Department of Organismic and Evolutionary Biology, Museum of Comparitive Zoology, 26 Oxford Street, Cambridge, MA 02138 United States
AB: This paper discusses the results of a high-resolution pollen analysis of Early Eocene laminated sediments from the Okanagan Highlands, British Columbia. Shales of the Horsefly site consist of alternating dark- and light-coloured laminae couplets, thought to represent winter and summer deposition (i.e., seasonal resolution) along with interleaved tephra layers representing episodic volcanic eruptions. Biostratigraphic analysis suggests that these sediments are contemporaneous with other Early Eocene Okanagan sites. The Horsefly shales were sampled for pollen at one millimeter intervals, reflecting annual time scales, to provide a high-resolution evaluation of Early Eocene environments for the Okanagan Highlands. This study complements numerous prior studies of fossil fish populations in these annual varves, which have yielded insight into the ecology of the Horsefly Eocene lake and in combination with these studies provides the opportunity to resolve annual to millennial scale patterns with the Early Eocene Okanagan Highlands environments.
DE: 4948 Paleocene/Eocene thermal maximum
DE: 4950 Paleoecology
DE: 4952 Palynology
DE: 9350 North America
SC: Paleoceanography and Paleoclimatology [PP]
MN: Fall Meeting 2005