B21D:
Environmental and Ecological Change in the Neoproterozoic-Paleozoic Transition Posters

Tuesday, 16 December 2014: 8:00 AM-12:20 PM
Chairs:  David A Fike, Washington University, St. Louis, MO, United States and David T Johnston, Harvard-Earth & Planet Science, Cambridge, MA, United States
Primary Conveners:  David A Fike, Washington University, St. Louis, MO, United States
Co-conveners:  David T Johnston, Harvard-Earth & Planet Science, Cambridge, MA, United States
OSPA Liaisons:  David T Johnston, Harvard-Earth & Planet Science, Cambridge, MA, United States

Abstracts Submitted to this Session:

0066
 
Ocean Fertilization at the Dawn of the Phanerozoic
Robert Riepma Gaines, Pomona College, Claremont, CA, United States
0067
 
Multiple High-Frequency Carbon Isotope Excursions Across the Precambrian-Cambrian Boundary: Implications for Correlations and Environmental Change
Emily Frances Smith, Francis A Macdonald, Daniel P Schrag and Thomas Laakso, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States
0068
 
Assessing the primary nature of the Ediacaran δ13C record 
Kristin Bergmann1, Magdalena R Osburn2, John P Grotzinger3, John M Eiler3 and Woodward W Fischer3, (1)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (2)Northwestern University, Evanston, IL, United States, (3)Caltech, Pasadena, CA, United States
0069
 
Late Ordovician Seawater Sulfate δ34S in Well-preserved Brachiopods
Theodore Michael Present1, Guillaume Paris1, Andrea Burke2, Woodward W Fischer1 and Jess F Adkins1, (1)California Institute of Technology, Pasadena, CA, United States, (2)University of St Andrews, St Andrews, KY16, United Kingdom
0070
 
Evaluating the Effects of Sediment Reworking on the Sulfur Isotopic Composition of Aqueous and Mineral Sulfides
Daniel Johnson, Catherine Rose and David A Fike, Washington University, St. Louis, MO, United States
0071
 
Rethinking Secular δ34S Records: Stratigraphic Trends and Biogeochemical Interpretations
David A Fike and Catherine V Rose, Washington University, St. Louis, MO, United States
0072
 
Deciphering Earth History: Mapping the Micron-Scale Spatial Distribution and Speciation of Sulfur in Ordovician Carbonates
Catherine Rose, Trinity College Dublin, Dublin, Ireland, David A Fike, Washington University, St. Louis, MO, United States, Samuel M Webb, SLAC National Accelerator Laboratory, Menlo Park, CA, United States, Matthew Newville, University of Chicago, Consortium of Advanced Radiation Sources, Chicago, IL, United States, Antonio Lanzirotti, University of Chicago, Argonne, IL, United States and Jeffrey G Catalano, Washington University in St Louis, St. Louis, MO, United States
0073
 
Carbon associated nitrate (CAN) in the Ediacaran Johnnie Formation, Death Valley, California and links to the Shuram negative carbon isotope excursion
Zoe Y Grunder Dilles1, Maria G Prokopenko2, Kristin Bergmann3, Sean J Loyd4, Frank A Corsetti5, William Berelson5 and Robert Riepma Gaines1, (1)Pomona College, Claremont, CA, United States, (2)Pomona College, Geology, Claremont, CA, United States, (3)California Institute of Technology, Pasadena, CA, United States, (4)California State University Fullerton, Fullerton, CA, United States, (5)University of Southern California, Los Angeles, CA, United States
0074
 
The first actual record of deep open-ocean conditions in the Ediacaran: Fe speciation in pelagic deep-sea sediments in accretionary complexes in Wales, UK
Tomohiko Sato1, Hisashi Asanuma1, Yoshihiro Okada1, Shigenori Maruyama1, Katsumi Shozugawa2, Motoyuki Matsuo2 and Brian F Windley3, (1)Tokyo Institute of Technology, Tokyo, Japan, (2)University of Tokyo, Tokyo, Japan, (3)University of Leicester, Leicester, United Kingdom
0075
 
Triple-oxygen and sulfur isotopic evidence for diagenetic overprinting of carbonate-associated sulfate in Neoproterozoic samples from a drill core
Yongbo Peng1, Wei Wang2, Lisa M Pratt1, Chuanming Zhou2, Huiming Bao3 and Justin A Hayles3, (1)Indiana University Bloomington, Department of Geological Sciences, Bloomington, IN, United States, (2)Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China, (3)Louisiana State Univ., Department of Geology & Geophysics, Baton Rouge, LA, United States
 
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