PP52A:
High-Resolution Archives of Marine Biogeochemistry, Climate, and Environmental Change II

Friday, 19 December 2014: 10:20 AM-12:20 PM
Chairs:  Branwen Williams, W.M. Keck Science Department, Claremont, CA, United States, Eleni Anagnostou, University of Southampton, Southampton, SO14, United Kingdom and Michèle LaVigne, Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME, United States
Primary Conveners:  Sindia M Sosdian, Cardiff University, Cardiff, CF24, United Kingdom
Co-conveners:  Eleni Anagnostou, University of Southampton, Southampton, SO14, United Kingdom, Branwen Williams, Claremont McKenna-Pitzer-Scripps Colleges, Claremont, CA, United States and Michèle LaVigne, Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME, United States
OSPA Liaisons:  Michèle LaVigne, Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME, United States

Abstracts Submitted to this Session:

10:20 AM
 
Export Production Fluctuations in the Eastern Equatorial Pacific during the Pliocene-Pleistocene: Reconstruction Using Barite Accumulation Rates
Adina Paytan1, Zhongwu Ma1, Ana Christina Ravelo2 and Zhonghui Liu3, (1)UCSC-Inst Marine Sciences, Santa Cruz, CA, United States, (2)University of California-Santa Cruz, Santa Cruz, CA, United States, (3)The University of Hong Kong, Pok Fu Lam Road, Hong Kong
10:35 AM
 
Deep Ocean Circulation at the Bermuda Rise during the Last 150ka: A New Centennial-Resolution Nd Isotope Record
Natalie Laura Roberts1, Alexander M Piotrowski1, William B Curry2 and Lloyd D Keigwin3, (1)University of Cambridge, Cambridge, United Kingdom, (2)Bermuda Institute of Ocean Sciences, St.George's, Bermuda, (3)WHOI, Woods Hole, MA, United States
10:50 AM
 
LATE HOLOCENE PLANKTON DOMAIN SHIFTS IN THE NORTH PACIFIC SUBTROPICAL GYRE REVEALED BY AMINO ACID SPECIFIC δ13C AND δ15N RECORDS FROM PROTEINACEOUS DEEP-SEA CORALS
Owen Sherwood1, Kelton McMahon2, Thomas P Guilderson2,3 and Matthew D Mccarthy2, (1)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (2)University of California Santa Cruz, Santa Cruz, CA, United States, (3)Lawrence Livermore National Laboratory, Livermore, CA, United States
11:05 AM
 
A 200-Year Record of Interannual SST and pH Variability from the Lesser Antilles (Caribbean Sea, North Atlantic) Inferred from a Siderastrea Siderea Reef Coral
Eric Douville1, Martine Paterne1, Nathalie Feuillet2, Claude Noury1, Louise Bordier1 and François Thil1, (1)LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette Cedex, France, (2)IPGP, Paris, France
11:20 AM
 
Multi-Centennial Record of North Atlantic Freshwater Variability since the Little Ice Age Archived in Coralline Algal Ba/Ca
Phoebe Tsz-Wai Chan1, Jochen Halfar1, Walter Adey2 and Thomas Zack3, (1)University of Toronto, Earth Sciences, Toronto, ON, Canada, (2)National Museum of Natural History, Botany, Washington, DC, United States, (3)University of Gothenburg, Earth Sciences, Gothenburg, Sweden
11:35 AM
 
Tracking Fluctuations of Oxygen Minimum Zones: A High-Resolution Study of δ15Nsed and Biogenic Silica in Laminated Sediments from the Gulf of California and the California Borderland
Caitlin Tems, University of Southern California, Los Angeles, CA, United States, William Berelson, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, Robert Thunell, Univ South Carolina, Columbia, SC, United States and Xiaomei Xu, University of California Irvine, Irvine, CA, United States
11:50 AM
 
Equatorial Pacific Coral Geochemical Records Show Recent Weakening of the Walker Circulation
Jessica Carilli1, Helen V Mcgregor2, Jessica J Gaudry3, Simon D Donner4, Michael K Gagan2, Samantha L Stevenson5, Henri Wong6 and David Fink6, (1)University of Massachusetts Boston, Boston, MA, United States, (2)Australian National University, Canberra, Australia, (3)University of Wollongong, Wollongong, Australia, (4)University of British Columbia, Vancouver, BC, Canada, (5)National Center for Atmospheric Research, Boulder, CO, United States, (6)Australian Nuclear Science and Technology Organization, Kirrawee, Australia