CT23A:
The Role of Particles in the Cycling of Trace Elements and Their Isotopes in the Ocean II


Session ID#: 11303

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 Liaison:  Hélène Planquette, LEMAR, UMR 6539, Plouzané, France
Index Terms:

4211 Benthic boundary layers [OCEANOGRAPHY: GENERAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4808 Chemical tracers [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4875 Trace elements [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Co-Sponsor(s):
  • B - Biogeochemistry and Nutrients
  • HE - High Latitude Environments
  • ME - Marine Ecosystems
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

CT23A-01
Particulate Trace Metal Composition in Coastal Waters Surrounding Taiwan (89340)
Kuo-Tung Jiann, Kuei-Chen Huang and Ai-Chi Hsieh, NSYSU National Sun Yat-Sen University, Kaohsiung, Taiwan
CT23A-02
Particulate trace elements in the North Atlantic along the GEOVIDE section (GEOTRACES GA01) (90018)
Hélène Planquette1, Arthur Gourain2, Marie Cheize1, Jan-Lukas Menzel Barraqueta3, Julia Boutorh1, Rachel Shelley1, Leonardo Pereira Contreira4, Francois Lacan5, Pascale Lherminier6 and Geraldine Sarthou1, (1)LEMAR, UMR 6539, Plouzané, France, (2)University of Liverpool, Earth Ocean & Ecological Sciences, Liverpool, United Kingdom, (3)GEOMAR Helmholtz-Zentrum für Ozeanforschung, Kiel, Germany, (4)Universidade Federal do Rio Grande, Rio Grande, Brazil, (5)CNRS-LEGOS, Toulouse, France, (6)IFREMER, LOPS, Plouzané, France
CT23A-03
Particulate Trace and Minor Element Behavior in a Dust-dominated Basin: Results from the US GEOTRACES North Atlantic Zonal Transect (GA03) (90212)
Phoebe J Lam, University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States and Daniel Ohnemus, Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States
CT23A-04
Assessing the marine geological cycle of cobalt from its interactions with particles in the Black Sea (91939)
Marie Boye1, Gabriel Dulaquais1, Hélène Planquette1 and Micha J.A. Rijkenberg2, (1)IUEM Institut Universitaire Européen de la Mer, LEMAR, Plouzané, France, (2)Royal Netherlands Institute for Sea Research, Den Burg, Netherlands
CT23A-05
Westward Penetration of Particulate and Dissolved Iron Redox Species from the Peruvian Margin (90460)
Maija Iris Heller1, Phoebe J Lam1 and James Moffett2, (1)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, (2)University of Southern California, Department of Biological Sciences, Los Angeles, CA, United States
CT23A-07
Long-range transport of hydrothermal iron facilitated by dissolved-particulate exchange (93816)
Kiefer Forsch, Scripps Institution of Oceanography, Geosciences Research Division, La Jolla, CA, United States, Jessica N Fitzsimmons, Texas A & M University College Station, Oceanography, College Station, TX, United States, Christopher R German, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Robert M Sherrell, Rutgers University, Marine and Coastal Sciences and Earth and Planetary Sciences, New Brunswick, NJ, United States
CT23A-08
Iron partitioning between the dissolved and particulate phase within a rising hydrothermal plume: Beebe Vents, Piccard Hydrothermal Field, Mid-Cayman Rise. (92553)
John A Breier Jr, Organization Not Listed, Washington, DC, United States, Margaret L Estapa, Skidmore College, Saratoga Springs, NY, United States and Christopher R German, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
See more of: Chemical Tracers, DOM and Trace Metals