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:

4215 Climate and interannual variability [OCEANOGRAPHY: GENERAL]
4825 Geochemistry [OCEANOGRAPHY: CHEMICAL]
4901 Abrupt/rapid climate change [PALEOCEANOGRAPHY]
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]
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 the Earth, Atmosphere, and Climate, 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:

 
PC14B-1714
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 the Earth, Atmosphere, and Climate, 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
 
PC14B-1715
Calibration of δ18O values in mollusc shells analyzed via SIMS for paleotemperature reconstructions (644105)
Lauren E Graniero, University of North Carolina at Chapel Hill, Geological Sciences, Chapel Hill, NC, United States, Wesley George Parker, University of Cincinnati, Geology, Cincinnati, United States, Donna M Surge, University of North Carolina at Chapel Hill, Earth, Marine and Environmental Sciences, Chapel Hill, United States and Yurena Yanes, University of Cincinnati, Geology, Cincinnati, OH, United States
 
PC14B-1716
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 Wendt3, Gerald Hermann Haug4,5 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)MARUM - Center for Marine Environmental Sciences, University of Bremen, Bremen, Germany, (4)Max Planck Institute for Chemistry, Mainz, Germany, (5)ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
 
PC14B-1717
Application of coral carbon isotopes to study river discharge and paleo-turbidity in the Gulf of Chiriquí, Panamá (647086)
Logan D Brenner1, Braddock K Linsley2, Wade R McGillis3, Thomas L Weiss4, Jonathan Lambert2, Shawnee Traylor5 and Margaret Calcio6, (1)Barnard College, New York, NY, United States, (2)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (3)Columbia University, Earth and Environmental Engineering, New York, NY, United States, (4)Columbia University, New York, NY, United States, (5)Woods Hole Oceanographic Institution, Massachusetts Institute of Technology, MIT-WHOI Joint Program, Cambridge, United States, (6)Barnard College, Department of Environmental Science, New York, NY, United States
 
PC14B-1718
Seasonal timing of growth cessation in fossil Mercenaria spp. shells from warm vs. cold climates, Mid-Atlantic Coastal and Gulf Coastal Plains (647959)
Kylie Palmer, University of North Carolina at Chapel Hill, Geological Sciences, Chapel Hill, NC, United States, Donna M Surge, University of North Carolina at Chapel Hill, Earth, Marine and Environmental Sciences, Chapel Hill, United States and David K Moss, Sam Houston State University, Environmental and Geosciences, Huntsville, TX, United States
 
PC14B-1719
Interannual variations of D14CTOC and elemental contents in the laminated sediments of Santa Barbara Basin during the past 200 years (650407)
Prof. Hong-Chun Li, PhD, National Taiwan University, Department of Geosciences, Taipei, Taiwan, Yi-Wei Chang, Natioanl Taiwan University, Department of Geosciences, Taipei, Taiwan and William Berelson, University of Southern California, Earth Sciences, Los Angeles, CA, United States
 
PC14B-1720
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 R Nalesnik, University of Delaware, Earth Sciences, Newark, DE, United States and Kelly H Kilbourne, University of Maryland (UMCES CBL), Solomons, United States
 
PC14B-1721
200 years of climate-driven biogeochemical shifts in the California Current System reconstructed from high-fidelity proteinaceous coral archives (653770)
Genevieve Pugsley1, Danielle S Glynn2, Yuan Shen1, Matthew McCarthy1 and Thomas P Guilderson1,3, (1)University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States, (2)University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, United States, (3)Lawrence Livermore National Laboratory, Center for Accelerator Mass Spectrometry, Livermore, CA, United States
 
PC14B-1722
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
 
PC14B-1723
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, Woods Hole, United States and Forrest Horton, Woods Hole Oceanographic Institution, Department of Geology & Geophysics, Woods Hole, United States
 
PC14B-1724
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
 
PC14B-1725
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, Earth and Environmental Sciences, Ogden, United States, William Berelson, University of Southern California, 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
 
PC14B-1726
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, Sacramento, United States, Dr. Kristine L DeLong, Ph.D., Louisiana State University, Department of Geography and Anthropology, Baton Rouge, LA, United States and Niall C. Slowey, Texas A&M University, Oceanography, College Station, United States
 
PC14B-1727
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
 
PC14B-1728
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
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