HR: 0800h
AN: PP11B-1450    [Abstracts]
TI: The Ecology and Geochemistry of Benthic Foraminifera From the Venice Lagoon, Italy.
AU: * Basak, C
EM: cbasak@indstate.edu
AF: Indiana State University, Geography, Geology, Anthropology, Indiana State University, Science Building 159, Terre Haute, IN 47809 United States
AU: Rathburn, A E
EM: gerathbu@isugw.indstate.edu
AF: Indiana State University, Geography, Geology, Anthropology, Indiana State University, Science Building 159, Terre Haute, IN 47809 United States
AU: De Deckker, P
EM: Patrick.DeDeckker@anu.edu.au
AF: The Australian National University, Department of Earth and Marine Sciences, Australian National University, Building 47, Daley Road, Canberra, ACT 0200 Australia
AU: Eggins, S M
EM: Stephen.Eggins@anu.edu.au
AF: The Australian National University, Research School of Earth Sciences, Australian National University, Canberra, 0200 Australia
AU: Kluesner, J
EM: jared.kluesner@gmail.com
AF: Indiana State University, Geography, Geology, Anthropology, Indiana State University, Science Building 159, Terre Haute, IN 47809 United States
AU: Perez, E
EM: geperez@isugw.indstate.edu
AF: Indiana State University, Geography, Geology, Anthropology, Indiana State University, Science Building 159, Terre Haute, IN 47809 United States
AU: Gieskes, J M
EM: jgieskes@ucsd.edu
AF: Scripps Institution of Oceanography, Integrative Oceanography Division-0218, Scripps Institution of Oceanography, 9500 Gilman Drive, La Jolla, CA 92093 United States
AB: The distribution and test geochemistry of living (stained) benthic foraminifera collected from a transect across contamination gradients within the Venice Lagoon, Italy have been evaluated as part of an international effort to examine the biota and chemistry of lagoon sediments (SIOSED). Benthic foraminifera (>150μm) were picked from the top 1 cm of push cores collected from the Lagoon. 99% of the foraminiferal assemblage at sites within contaminated sediments were found to be calcareous. Dominant taxa at both the sites include Ammonia sp. and Quinqueloculina sp. Aberrant morphologies were present. Laser ablation techniques were used to measure trace metal compositions of dominant taxa. Comparisons will be made between foraminiferal test geochemistry and ambient conditions. Results from this study will provide information to better understand the bioavailability of contaminants and the influence of ambient chemistry on benthic foraminiferal test chemistry.
DE: 4825 Geochemistry
DE: 4835 Marine inorganic chemistry (1050)
SC: Paleoceanography and Paleoclimatology [PP]
MN: Fall Meeting 2005