PC14B:
High-Resolution Geochemical Proxies of Global Change: Progress, Problems, and Utility I Posters

Session ID#: 84961

Session Description:
Knowledge of climate and environmental change throughout geological time is derived from deep-sea and terrestrial records representing long time scales. While records of climate and environmental changes at such time scales are essential, high-resolution records at seasonal, annual, and decadal scales are equally important and under-represented in the literature. Much of what we know about past environments is based on the geochemical signature in various proxy archives. While substantial progress continues to be made in this area, specific obstacles and problems do exist. We encourage papers presenting geochemical records of global change, including calibration/validation studies, in biologic or inorganic carbonates, and highly resolved (decadal resolution) sediments. Geochemical studies highlighting recent progress, problems, or utility in the marine environment are especially welcome.
Co-Sponsor(s):
  • CT - Chemical Tracers, Organic Matter and Trace Elements
  • MG - Marine Geology and Sedimentology
  • OB - Ocean Biology and Biogeochemistry
Index Terms:
Primary Chair:  Nina Whitney, Iowa State University, Geological and Atmospheric Sciences, Ames, IA, United States
Co-chairs:  Madelyn Mette, Uni Research Climate, Bjerknes Centre for Climate Research, Bergen, Norway, David P Gillikin, Union College, Geosciences, Schenectady, United States and Alan D Wanamaker, Iowa State University, Department of Geological and Atmospheric Sciences, Ames, United States
Primary Liaison:  Nina Whitney, Iowa State University, Geological and Atmospheric Sciences, Ames, IA, United States
Moderators:  David P Gillikin, Union College, Geosciences, Schenectady, United States and Nina Whitney, Iowa State University, Geological and Atmospheric Sciences, Ames, IA, United States
Student Paper Review Liaison:  Nina Whitney, Iowa State University, Geological and Atmospheric Sciences, Ames, IA, United States

Abstracts Submitted to this Session:

 
Extending northwest Atlantic pH records using the boron isotope-pH proxy in two marine calcifiers in the Gulf of Maine (639082)
Branwen Williams1, Joseph Stewart2, Alan D Wanamaker3, Nina Whitney4, Brittany Jellison5, Brittany Hernandez6, Aaron Leigh Strong7 and Michele LaVigne6, (1)Claremont Colleges, Claremont, CA, United States, (2)University of Bristol, Earth Sciences, Bristol, United Kingdom, (3)Iowa State University, Department of Geological and Atmospheric Sciences, Ames, United States, (4)Iowa State University, Geological and Atmospheric Sciences, Ames, IA, United States, (5)Bowdoin College, Schiller Coastal Studies Center and Department of Biology, Brunswick, ME, United States, (6)Bowdoin College, Department of Earth and Oceanographic Science, Brunswick, ME, United States, (7)Hamilton College, Environmental Studies, Clinton, NY, United States
 
Calibration of δ18O values in mollusc shells analyzed via SIMS for paleotemperature reconstructions (644105)
Lauren E Graniero1, Wesley George Parker2, Donna M Surge1 and Yurena Yanes3, (1)University of North Carolina at Chapel Hill, Geological Sciences, Chapel Hill, NC, United States, (2)University of Cincinnati, Geology, Cincinnati, United States, (3)University of Cincinnati, Geology, Cincinnati, OH, United States
 
Fine-scale timing of environmental changes at the BA-YD transition in the Cariaco Basin revealed by molecular stratigraphy at sub-annual resolution (645967)
Brenna Boehman1,2, Lars Wörmer1, Jenny Wendt1, Gerald Hermann Haug3,4 and Kai-Uwe Hinrichs1, (1)MARUM / University of Bremen, Bremen, Germany, (2)Massachusetts Institute of Technology / Woods Hole Oceanographic Institution, Boston, MA, United States, (3)Max Planck Institute for Chemistry, Mainz, Germany, (4)ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
 
Application of coral carbon isotopes to study river discharge and paleo-turbidity in the Gulf of Chiriquí, Panamá (647086)
Logan D Brenner, Barnard College, New York, NY, United States, Braddock K Linsley, Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, Wade R McGillis, Columbia University, Earth and Environmental Engineering, New York, NY, United States, Thomas L Weiss, Columbia University, New York, NY, United States, Jonathan Edward Lambert, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Shawnee Traylor, Woods Hole Oceanographic Institution, Massachusetts Institute of Technology, Cambridge, MA, United States and Margaret Calcio, Barnard College, Department of Environmental Science, New York, NY, United States
 
Seasonal timing of growth cessation in fossil Mercenaria spp. shells from warm vs. cold climates, Mid-Atlantic Coastal and Gulf Coastal Plains (647959)
Kylie Palmer1, Donna M Surge1 and David K Moss2, (1)University of North Carolina at Chapel Hill, Geological Sciences, Chapel Hill, NC, United States, (2)Sam Houston State University, Geography and Geology, Huntsville, TX, United States
 
Interannual variations of D14CTOC and elemental contents in the laminated sediments of Santa Barbara Basin during the past 200 years (650407)
Hong-Chun Li, National Taiwan University, Taipei, Taiwan, Yi-Wei Chang, Natioanl Taiwan University, Department of Geosciences, Taipei, Taiwan and William Berelson, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
 
Cooler and More Variable Medieval Climate in the Northern Caribbean indicated by Pseudodiploria strigosa and Orbicella faveolata Coral Sr/Ca-based Temperature Records from the 11th Century (653011)
Abigail Nalesnik, University of Delaware, Newark, DE, United States and Kelly H Kilbourne, University of Maryland (UMCES CBL), Solomons, MD, United States
 
200 years of climate-driven biogeochemical shifts in the California Current System reconstructed from high-fidelity proteinaceous coral archives (653770)
Genevieve Pugsley1, Danielle S Glynn1, Yuan Shen1, Matthew McCarthy1 and Thomas P Guilderson1,2, (1)University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States, (2)Lawrence Livermore National Laboratory, Center for Accelerator Mass Spectrometry, Livermore, CA, United States
 
Tsunami-Riding Clams: Decoding the life history of the mysterious Glycymeris fauna of Israel (653980)
Daniel E Killam, University of Haifa, Marine Geosciences, Haifa, Israel, Adina Paytan, University of California Santa Cruz, Institute of Marine Sciences, Santa Cruz, United States, Timor Katz, Israel Oceanographic and Limnological Research Institute, Haifa, Israel and Beverly Goodman-Tchernov, University of Haifa, Haifa, Israel
 
Constraining Paleo-ENSO with Coral Based Sr-U Thermometry (654604)
Nathaniel Rust Mollica, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Anne L Cohen, Woods Hole Oceanographic Institution, Geology & Geophysics, Woods Hole, MA, United States and Forrest Horton, Woods Hole Oceanographic Institution, Department of Geology & Geophysics, Woods Hole, United States
 
Exploring the Paleoceanographic Utility of Intertidal Mussels Using Paired Geochemical and Microstructural Proxies (654971)
Veronica Vriesman, UC Davis, Earth and Planetary Sciences, Davis, CA, United States, Tessa M Hill, University California Davis, Earth and Planetary Sciences and Bodega Marine Laboratory, Davis, CA, United States and Sandra J. Carlson, University of California, Davis, Davis, CA, United States
 
Assessing Regional Variability in the Eastern Tropical North Pacific Oxygen Minimum Zone through a Geochemical Comparison of Pescadero Slope and Soledad Basin Sediments (655511)
Caitlin Tems, Weber State University, Ogden, UT, United States, William Berelson, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, Alexander van Geen, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States and Yvonne Hamann, ETH Zurich, Zurich, Switzerland
 
Temperature Calibration of Siderastrea siderea coral from the Flower Garden Banks National Marine Sanctuary (655687)
Alyssa Gorenflo, California State University Sacramento, Physics and Astronomy, Sacramento, CA, United States, Amy J Wagner, California State University, Sacramento, Geology, Sacramento, CA, United States, Kristine L DeLong, Louisiana State University, Department of Geography and Anthropology, Baton Rouge, United States and Niall C. Slowey, Texas A&M University, Oceanography, College Station, United States
 
My Biogeochemical Romance: Correlation of inorganic geochemical proxy data and biomarker composition to reveal oceanic redox structure in the Late Ordovician Utica-Point Pleasant Formation (656010)
Samantha Ritzer, Stanford University, Department of Geological Sciences, Stanford, United States, Jochen J Brocks, Australian National University, Canberra, ACT, Australia and Erik A Sperling, Scripps Institution of Oceanography, Biological Oceanography, La Jolla, United States
 
Amino acid δ13C records from deep-sea corals of the NW Atlantic: Reconstructing plankton community composition in a rapidly changing ocean (657592)
Owen Sherwood1, Chelsea Renée Fougère1, Blake S Tibert2 and Kelton McMahon3, (1)Dalhousie University, Department of Earth and Environmental Sciences, Halifax, NS, Canada, (2)Dalhousie University, NS, Canada, (3)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States