HR: 0800h
AN: PP51C-0613    [Abstracts]
TI: The Pole-to-Equator Paleoecological Signature of Dinoflagellate Cysts during the Paleocene-Eocene Thermal Maximum
AU: * Sluijs, A
EM: A.Sluijs@bio.uu.nl
AF: Laboratory of Palaeobotany and Palynology, Department of Biology, Utrecht University, Budapestlaan 4, Utrecht, 3584 CD Netherlands
AU: Brinkhuis, H
EM: H.Brinkhuis@bio.uu.nl
AF: Laboratory of Palaeobotany and Palynology, Department of Biology, Utrecht University, Budapestlaan 4, Utrecht, 3584 CD Netherlands
AU: Lotter, A F
EM: a.f.lotter@bio.uu.nl
AF: Laboratory of Palaeobotany and Palynology, Department of Biology, Utrecht University, Budapestlaan 4, Utrecht, 3584 CD Netherlands
AU: Zachos, J C
EM: jzachos@es.ucsc.edu
AF: Earth Sciences Department, University of California, Santa Cruz, Earth and Marine Sciences Building, Santa Cruz, CA 95064 United States
AU: John, C M
EM: cjohn@es.ucsc.edu
AF: Earth Sciences Department, University of California, Santa Cruz, Earth and Marine Sciences Building, Santa Cruz, CA 95064 United States
AU: Bohaty, S M
EM: sbohaty@es.ucsc.edu
AF: Earth Sciences Department, University of California, Santa Cruz, Earth and Marine Sciences Building, Santa Cruz, CA 95064 United States
AU: Reichart, G
EM: reichart@geo.uu.nl
AF: Faculty of Geosciences, Utrecht University, Budapestlaan 4, Utrecht, 3584 CD Netherlands
AU: Deltrap, R
EM: R.Deltrap@students.uu.nl
AF: Laboratory of Palaeobotany and Palynology, Department of Biology, Utrecht University, Budapestlaan 4, Utrecht, 3584 CD Netherlands
AU: Pearson, P N
EM: Paul.Pearson@earth.cf.ac.uk
AF: School of Earth, Ocean and Planetary Sciences, Cardiff University, Main Building, Park Place, Cardiff, CF10 3YE United Kingdom
AB: Organic-walled dinoflagellate cysts (dinocysts) show the most dramatic biotic response of all planktonic organisms to widespread climate warming near the Paleocene-Eocene boundary, with the now globally recorded acme of the thermophilous and presumably heterotrophic taxon Apectodinium. Here we present dinocyst assemblage data across the Paleocene Eocene Thermal Maximum (PETM) along a latitudinal transect of selected marginal marine sites reaching from the North Pole to the tropics. In contrast to previous relatively low-resolution data, our records show large variations in assemblages that point to highly variable surface water salinities, stratification and nutrient concentrations in marginal marine settings within the PETM interval. We discuss possible relations to the pole to equator temperature gradient, hydrological cycle and seasonality
DE: 4948 Paleocene/Eocene thermal maximum
DE: 4952 Palynology
SC: Paleoceanography and Paleoclimatology [PP]
MN: Fall Meeting 2005