The Role of Particles in the Cycling of Trace Elements and Their Isotopes in the Ocean III Posters

Session ID#: 7493

Session Description:
A number of trace metals are thought to control marine ecosystem features and biological productivity. While trace elements in the dissolved phase have been the focus of many investigations, we are still largely ignorant of the large scale distribution of particulate trace elements and their size partitioning and chemical composition. The GEOTRACES program, which aims to provide a comprehensive view of the distribution of trace elements and their isotopes (TEIs) in the world's oceans, is providing new insights on these aspects. Furthermore, there is a crucial need to understand the exchange mechanisms between particulate and dissolved pools, including adsorption, desorption, aggregation, precipitation, biological uptake and remineralization processes.  This session seeks to bring together scientists interested in better constraining the role of ocean particles in the biogeochemical cycles of TEIs, in different oceanic environments, such as the continental shelves and slopes, the nepheloid layers, or the particle-poor regions of the open ocean. We invite abstracts on all aspects of oceanic particulate TEIs, through experimental, in situ and modeling approaches.
Primary Chair:  Hélène Planquette, LEMAR, CNRS, Plouzané, France
Chairs:  Phoebe J Lam, University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States and Benjamin S Twining, Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States
Moderators:  Hélène Planquette, LEMAR, UMR 6539, Plouzané, France, Phoebe J Lam, University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States and Benjamin S Twining, Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States
Student Paper Review Liaisons:  Hélène Planquette, LEMAR, UMR 6539, Plouzané, France and Phoebe J Lam, University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States
Index Terms:

4211 Benthic boundary layers [OCEANOGRAPHY: GENERAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
  • B - Biogeochemistry and Nutrients
  • HE - High Latitude Environments
  • ME - Marine Ecosystems
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

234Th distribution along the Eastern Pacific GEOTRACES transect and implications for export and remineralization fluxes of carbon and TEIs (87606)
Erin E Black1, Ken Buesseler1, Phoebe J Lam2 and Matthew A Charette1, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States
Bottom scavenging in coastal Lake Michigan and the use of 234Th and 90Y as tracers of particle flux in shallow aquatic systems (89002)
James T Waples, University of Wisconsin - Milwaukee, School of Freshwater Sciences, Milwaukee, WI, United States
210Pb and 210Po distributions and disequilibrium in the water column of the Gaoping Submarine Canyon (91590)
Gwo-Wei Hung, National Penghu University of Science and Technology, General Education Center, Magong, Taiwan
The Relationship Between Particulate Composition and 210Po and 210Pb Content along Three GEOTRACES Transects (88953)
Yi Tang1, Gillian Stewart1, Pere Masque2, Thomas M Church3, Maxi Castrillejo4 and Hiu Yan Choi5, (1)CUNY Queens College, School of Earth and Environmental Sciences, Flushing, NY, United States, (2)The University of Western Australia Oceans Institute, University of Western Australia, Crawley, Australia, (3)University of Delaware, Newark, DE, United States, (4)Universitat Autònoma de Barcelona, Department of Physics and Institut de Ciència i Tecnologia Ambientals, Barcelona, Spain, (5)Delaware Department of Natural Resources and Environmental Control, DE, United States
Comparison of 210Po, 234Th and Sediment-Trap Based Export Fluxes in the Northern Gulf of Mexico (92176)
Kanchan Maiti1, Somiddho Bosu1, Eurico J. D'Sa1, Malinda Sutor2 and Puspa Lal Adhikari1, (1)Louisiana State University, Baton Rouge, LA, United States, (2)Louisiana State University, Department of Oceanography and Coastal Sciences, Baton Rouge, LA, United States
210Po/210Pb Activity Ratios as a Possible ‘Dating Tool’ of Ice Cores and Ice-rafted Sediments from the Western Arctic Ocean – Preliminary Results (90768)
Mark M Baskaran and Katherine Krupp, Wayne State University, Detroit, MI, United States
Isotope Exchange: a Potential Mechanism Regulating the Natural and Anthropogenic Pb Isotope Budget in Coastal Waters (89210)
Mengli Chen1, Edward A Boyle2, Cheryl Zurbrick2, Gonzalo G Carrasco1, Adam D Switzer3 and Ning Zhao4, (1)Singapore-MIT Alliance for Research and Technology (SMART), Singapore, Singapore, (2)Massachusetts Institute of Technology, Cambridge, MA, United States, (3)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (4)Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Preferential accumulation of particulate radioiodine in shelf-edge sediment off Fukushima, Japan (89186)
Shigeyoshi Otosaka1, Yuhi Satoh1, Takashi Suzuki2 and Jun Kuwabara2, (1)Japan Atomic Energy Agency, Tokai, Japan, (2)Japan Atomic Energy Agency, Mutsu, Japan
Particulate Trace Metal Composition in the Western Philippine Sea: the importance of anthropogenic aerosol deposition (87338)
Wen-Hsuan Liao and Tung-Yuan Ho, Academia Sinica, Research Center for Environmental Changes, Taipei, Taiwan
Distribution and flux estimates of soluble, colloidal, and leachable particulate trace metals in dynamic and oxygen depleted Mauritanian shelf waters (91763)
Insa Rapp, Christian Schlosser, Martha Gledhill and Eric P. Achterberg, Geomar - Hemholtz Centre for Ocean Research, Chemical Oceanography, Kiel, Germany
Key sources and distribution patterns of particulate material in the South Atlantic: data from the UK GEOTRACES A10 cruise (89617)
Angela Milne, University of Plymouth, Plymouth, United Kingdom, Matthew Palmer, National Oceanography Centre, Liverpool, United Kingdom and Maeve Carroll Lohan, Plymouth University, Plymouth, United Kingdom; National Oceanography Centre, Southampton, United Kingdom
A high resolution and quasi zonal transect of dissolved Ba in the Mediterranean Sea (90163)
Stephanie Jacquet1, Loïc Jullion2, Christophe Monnin3, Virginie Riou4, Claude Manté2 and Toste S Tanhua5, (1)Aix-Marseille Univ., Université de Toulon, CNRS, IRD, Mediterranean Institute of Oceanography (MIO) UMR 7294, Marseille, France, (2)MIO-AMU CNRS, Marseille, France, (3)University Paul Sabatier Toulouse III, Toulouse Cedex 09, France, (4)Centre Européen de Recherche et d'Enseignement en Géosciences de l'Environnement, Aix en Provence, France, (5)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
Oguz Yigiterhan, Qatar University, Environmental Science Center, Doha, Qatar, Ibrahim S Al-Ansari, Qatar University, Doha, Qatar, Mohamed Abdel-Moati, Qatar Ministry of Environment, Environmental Assesment, Doha, Qatar, James W Murray, University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States and Mehsin Al-Ansi, Qatar University, Biological and Environmental Sciences, Doha, Qatar
Elemental Ratios of Bioactive Trace Metals in the Bay of Bengal (89832)
Rachel Weisend1, Peter L Morton2, Pamela M Barrett3, Nathaniel J Buck4, Joseph A Resing4 and William M Landing5, (1)Florida State University, Department of Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States, (2)National High Magnetic Field Laboratory, Geochemistry, Tallahassee, FL, United States, (3)NOAA Seattle, Seattle, WA, United States, (4)University of Washington PMEL/NOAA, Joint Institute for the Study of the Atmosphere and Ocean, Seattle, WA, United States, (5)Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States
Processes controlling Cadmium isotopic fractionation in the surface water of the northern South China Sea (90467)
Shun-Chung Yang, Research Center for Environmental Changes, Academia Sinica, Taipei, Taiwan, Tung-Yuan Ho, Academia Sinica, Research Center for Environmental Changes, Taipei, Taiwan and Der-Chuen Lee, Academia Sinica, Taipei, Taiwan
Seasonal and Spatial Variation of Particulate Cadmium and Phosphorous along Line P in the Northeast Pacific (90834)
Hannah Bourne1, James K B Bishop1,2 and Todd Wood2, (1)University of California Berkeley, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Earth Sciences Division, Berkeley, CA, United States
Phosphorus Phase Associations in the Deep Ocean Particle Flux in the Sargasso Sea (90415)
Alice Marie Carter, Marine Biological Laboratory, Woods Hole, MA, United States, Maureen H Conte, Bermuda Institute of Ocean Sciences, St.George's, Bermuda, John C Weber, Marine Biological Laboratory, Onset, MA, United States and Leonard Shaw, University of Chicago, Chicago, IL, United States
Transport of Trace Fe from the Mariana Arc and Hydrothermal Exploration of the Mariana Back Arc Basin (93809)
Joseph A Resing, Joint Institute for the Study of the Atmosphere and Ocean, and NOAA/PMEL, Seattle, WA, United States, William W. Chadwick Jr., Oregon State University, NOAA/PMEL, Newport, OR, United States and Hydrothermal Hunt In the Mariana