CT14B:
Trace Elements and Isotopes at the Interfaces of the Atlantic Ocean II Posters
Session ID#: 9208
Session Description:
Trace elements play a crucial role in the ocean. Some are toxic at high concentrations, others serve as essential micronutrients in the many metabolic processes active in marine organisms. Some trace elements and their isotopes (TEIs) are diagnostic and allow the quantification of specific oceanic mechanisms. Studying the biogeochemical cycles of TEIs is thus necessary to deepen our understanding of carbon and nutrient cycling, climate change, ocean ecosystems and environmental contamination. The Atlantic Ocean is one of the primary CO2 sinks of the world ocean and one of the most biologically productive. Recently, full-depth high resolution measurement campaigns, especially in the framework of the international GEOTRACES program, have revolutionized our understanding of the TEI cycling in the Atlantic Ocean. However, processes occurring at the oceanic interfaces are very complex and need more attention. The aim of this session is to increase our understanding of the exchange of TEIs at the interfaces between the ocean and i) the atmosphere, ii) the continents (e.g. by rivers and groundwater), iii) the marine sediments, and iv) the ridges. We will particularly encourage contributions dealing with interdisciplinary studies, with new insights gained by application of state-of-the-art analytical tools and modeling approaches.
Primary Chair: Geraldine Sarthou, LEMAR UMR 6539 CNRS UBO IRD IFREMER, IUEM, Plouzané, France
Chairs: Edward A Boyle, Massachusetts Institute of Technology, Cambridge, MA, United States, Gideon Mark Henderson, University of Oxford, Earth Sciences, Oxford, United Kingdom and Micha J.A. Rijkenberg, Royal Netherlands Institute for Sea Research, Den Burg, Netherlands
Moderators: Geraldine Sarthou, LEMAR, UMR 6539, Plouzané, France, Edward A Boyle, Massachusetts Institute of Technology, Cambridge, MA, United States, Micha J.A. Rijkenberg, Royal Netherlands Institute for Sea Research, Den Burg, Netherlands and Gideon Mark Henderson, University of Oxford, Earth Sciences, Oxford, United Kingdom
Student Paper Review Liaison: Geraldine Sarthou, LEMAR, UMR 6539, Plouzané, France
Co-Sponsor(s):
Abstracts Submitted to this Session:
Iron isotopic composition of seawater within the oxygen minimum zone over the shelf and the ocean basin in the tropical Atlantic Ocean
(Invited) (87721)
Jessica Katharina Klar1, Rachael Helen James1, Ian John Parkinson2, James Andy Milton1, Christian Schlosser3 and Eric P. Achterberg3, (1)University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom, (2)University of Bristol, Department of Earth Sciences, Bristol, BS8, United Kingdom, (3)GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany
The Celtic Sea Shelf System Acts as a Persistent Source of Iron to the North Atlantic (91151)
Antony Birchill1, Amber L Annett2, Angela Milne3, Walter Geibert4, Peter John Statham5, Simon Ussher1, Paul J Worsfold1 and Maeve Carroll Lohan5, (1)Plymouth University, School of Geography, Earth and Environmental Sciences, Plymouth, United Kingdom, (2)University of Edinburgh, School of GeoSciences, Edinburgh, United Kingdom, (3)Plymouth University, School of Geography, Earth and Environmental Sciences, Plymouth, PL4, United Kingdom, (4)Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, (5)University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom
GEOVIDE: AN INTERNATIONAL GEOTRACES STUDY IN THE NORTH ATLANTIC AND THE LABRADOR SEA (GA01 GEOTRACES SECTION) (88625)
Geraldine Sarthou1, Pascale Lherminier2 and The GEOVIDE Team1, (1)LEMAR UMR 6539 CNRS UBO IRD IFREMER, IUEM, Plouzané, France, (2)IFREMER, LOPS, Plouzané, France
Artificial Radionuclides (
236U and
129I) in the Arctic and North Atlantic Ocean (91995)
Marcus Christl1, Nuria Casacuberta2, Gideon Mark Henderson3, Michael Rutgers van der Loeff4, Pere Masque5, Christof Vockenhuber2, Dorothea Bauch6 and Clemens Walther7, (1)ETH Zurich, Laboratory of Ion Beam Physics, Zurich, Switzerland, (2)ETH Swiss Federal Institute of Technology Zurich, Laboratory of Ion Beam Physics, Zurich, Switzerland, (3)University of Oxford, Earth Sciences, Oxford, United Kingdom, (4)Alfred Wegener Institute, Bremerhaven, Germany, (5)The University of Western Australia Oceans Institute, University of Western Australia, Crawley, Australia, (6)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (7)University of Hannover, Hannover, Germany
Distribution and cycling of lead in the high and low latitudinal Atlantic Ocean (92283)
Christian Schlosser1, Jan-Lukas Menzel Barraqueta1, Insa Rapp2, Joaquin Pampin Baro1 and Eric P. Achterberg1, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany, (2)Geomar - Hemholtz Centre for Ocean Research, Chemical Oceanography, Kiel, Germany
Suspended Particulate Pb from the North Atlantic US GEOTRACES (GA-03) Section can be Estimated from Dissolved Pb Using a Two Phase Partition Coefficient Model (92738)
Edward A Boyle, Massachusetts Institute of Technology, Cambridge, MA, United States, Phoebe J Lam, University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, Daniel Ohnemus, University of Maine, Abigail Emery Noble, Gradient, Cambridge, MA, United States, Thomas M Church, University of Delaware, Newark, DE, United States, Sylvain Rigaud, Universite de Bordeaux; Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, Mark M Baskaran, Wayne State University, Detroit, MI, United States and Gillian Stewart, CUNY Queens College, School of Earth and Environmental Sciences, Flushing, NY, United States
Isotopic composition of dissolved and particulate Cu in the North Atlantic: Constraining the atmospheric deposition of aerosol Cu (89132)
Pamela M Barrett, NOAA Seattle, Seattle, WA, United States, Joseph A Resing, Joint Institute for the Study of the Atmosphere and Ocean, and NOAA/PMEL, Seattle, WA, United States, Bruce K Nelson, University of Washington Seattle Campus, Seattle, WA, United States, Peter L Morton, National High Magnetic Field Laboratory, Geochemistry, Tallahassee, FL, United States, Rachel Shelley, University of Western Brittany, Brest, France and William M Landing, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States
High resolution dissolved and dissolvable aluminum measurements along the GEOVIDE section (GEOTRACES section GA01) (91234)
Eric P Achterberg1, Jan-Lukas Menzel Barraqueta2, Christian Schlosser3, Hélène Planquette4, Marie Cheize4, Julia Boutorh4, Rachel Shelley5, Geraldine Sarthou4 and Martha Gledhill6, (1)University of Southampton, Southampton, SO14, United Kingdom, (2)GEOMAR, Kiel, Germany, (3)GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany, (4)LEMAR, UMR 6539, Plouzané, France, (5)University of Western Brittany, Brest, France, (6)Geomar - Hemholtz Centre for Ocean Research, Chemical Oceanography, Kiel, Germany
Flux of Total and Methyl Mercury to the Northern Gulf of Mexico from U.S. Estuaries (87730)
Chad R Hammerschmidt, Wright State University Main Campus, Dayton, OH, United States, Clifton S Buck, Skidaway Institute of Oceanography, Savannah, GA, United States, Katlin L Bowman, University of California Santa Cruz, Santa Cruz, CA, United States, Gary A Gill, Pacific Northwest National Laboratory, Richland, WA, United States and William M Landing, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States
BCO-DMO: Providing Access to Trace Element and Isotope Data from the Atlantic Ocean and Beyond (91458)
Shannon Rauch1, Molly D Allison1, Cynthia L Chandler1, Stephen R Gegg1, Robert C Groman1, Danie Kinkade1, David M Glover2, Peter H Wiebe1, Nancy J Copley1 and Adam Shepherd1, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Woods Hole Oceanographic Institution, Department of Marine Chemistry and Geochemistry, Woods Hole, MA, United States
Changes in size fractionation of metals in storm runoff following wildfires: implications for the transport of bioactive trace elements (88973)
Paulina Pinedo-Gonzalez1, Bridget Hellige2, A. Joshua West2 and Sergio A Sanudo-Wilhelmy1, (1)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (2)University of Southern California, Los Angeles, CA, United States
227Ac in the Deep South Pacific along the Peru-Tahiti GEOTRACES Transect: Mixing and Transport Rates (92402)
Douglas E Hammond1, Matthew A Charette2, Willard S Moore3, Paul Henderson2, Virginie Sanial4,5, Lauren Elizabeth Kipp2, Robert F Anderson6 and Francois Primeau7, (1)University of Southern California, Los Angeles, CA, United States, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (3)University of South Carolina Columbia, Columbia, SC, United States, (4)WHOI, Woods Hole, MA, United States, (5)LEGOS Laboratoire d'Etudes en Geophysique et Océanographie Spatiale, TOULOUSE, France, (6)Columbia University of New York, Palisades, NY, United States, (7)University of California Irvine, Irvine, CA, United States
A Margin Source of Cd in the Western North Pacific Ocean (93521)
Peter L Morton, National High Magnetic Field Laboratory, Geochemistry, Tallahassee, FL, United States, Cheryl Zurbrick, Massachusetts Institute of Technology, Cambridge, MA, United States, William M Landing, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States, Clifton S Buck, Skidaway Institute of Oceanography, Savannah, GA, United States, Celine Gallon, UCSC, Santa Cruz, CA, United States, John R Donat, Old Dominion University, Chemistry, Norfolk, VA, United States, Alan M Shiller, University of Southern Mississippi, Department of Marine Science, Stennis Space Center, MS, United States and Arthur Russell Flegal Jr, University of California Santa Cruz, Santa Cruz, CA, United States
