OS23E:
Trace Metals and Isotopes in the Eastern Tropical South Pacific: Results of the 2013 U.S. GEOTRACES Zonal Transect and Complimentary Studies II Posters

Tuesday, 16 December 2014: 1:40 PM-6:00 PM
Primary Convener:  James W Moffett, USC-Biology, Los Angeles, CA, United States
Co-conveners:  Christopher R German, WHOI, Woods Hole, MA, United States and Martin Frank, GEOMAR, Kiel, Germany

Abstracts Submitted to this Session:

1255
 
Nitrite Production Mechanisms in the Primary Nitrite Maximum of the Tropical South Pacific Inferred from Nitrite Isotopes Collected during the Geotraces 2013 Cruise
Brian D Peters, Stanford Earth Sciences, Stanford, CA, United States and Karen L Casciotti, Stanford University, Los Altos Hills, CA, United States
1256
 
Trace Metal Composition of Suspended Particulate Matter Along Meridional and Zonal Clivar Sections in the Indian Ocean
Pamela M Barrett1, Maxime M Grand2, William M Landing3, Chris I Measures2 and Joseph A Resing4, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)University of Hawaii at Manoa, Department of Oceanography, Honolulu, HI, United States, (3)Florida State University, Department of Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States, (4)Joint Institute for the Study of the Atmosphere and Ocean, and NOAA/PMEL, Seattle, WA, United States
1257
 
The Influence of the East Pacific Rise Hydrothermal Field on the Distributions of Dissolved Fe, Mn, Zn, Cu and Cd in the South Pacific
Saeed Roshan, University of Miami, Miami, FL, United States and Jingfeng Wu, Univ of Miami, Miami, FL, United States
1258
 
The Influence of Hydrothermal Plumes on the Distribution of Anthropogenic Radionuclides Between the Particulate and Dissolved Phases: Results from U.S. Geotraces Equatorial Pacific Zonal Transect GP16
Timothy C Kenna, Lamont -Doherty Earth Observatory, Palisades, NY, United States, María Villa Alfageme, Universidad de Sevilla, Applied Physics II, Sevilla, Spain, Núria Casacuberta Arola, ETH Zurich, Zurich, Switzerland and Pere Masque, Autonomous University of Barcelona (UAB), Barcelona, Spain
1259
 
Dissolved Trace Metal Concentrations over the Peru Shelf and in the Subsurface Oxygen Minimum Zone Off Peru
Claire Parker and Kenneth W Bruland, University of California Santa Cruz, Santa Cruz, CA, United States
1260
 
Concentrations, isotopic compositions, and sources of lead in the surface waters of the Eastern Tropical South Pacific
Ralph Till, Cheryl M Zurbrick and Arthur Russell Flegal Jr, University of California Santa Cruz, Santa Cruz, CA, United States
1261
 
The speciation of particulate iron in the Peruvian Oxygen Minimum Zone
Maija Iris Heller1, Phoebe J Lam1,2, Brandy M Toner3, Sarah L Nicholas3, James W Moffett4 and Peter Neil Sedwick5, (1)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, (2)Woods Hole Oceanographic Inst, Department of Marine Chemistry and Geochemistry, Woods Hole, MA, United States, (3)Univ of MN /Soil Water&Climate, St. Paul, MN, United States, (4)University of Southern California, Department of Biological Sciences, Los Angeles, CA, United States, (5)Old Dominion University, Department of Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States
1262
 
Diapycnal nutrient fluxes across the benthic boundary layers at the continental slopes off Peru and Mauritania based on 224Ra/223Ra-ratios
Patrick Reichert1, Jan C Scholten1, Anton Eisenhauer2, Juan Carlos Miquel3, Beat Gasser3, Volker Liebetrau2, Stefan Sommer2, Marcus Dengler2 and Lee D. Bryant2, (1)Institute of Geosciences,, Kiel, Germany, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (3)IAEA, Monaco, Monaco
1263
 
Fe, Zn, and Cd stable isotopes from the eastern tropical South Pacific from GEOTRACES cruise GP16 – Methods and data
Joshua Michael Helgoe, Emily Townsend and Seth John, University of South Carolina Columbia, Columbia, SC, United States
1264
 
Contrasting Scavenging Intensities of 210Po and 210Pb at Key Interfaces of the East Pacific Zonal Transect, GEOTRACES
John Niedermiller1, Mark M Baskaran1, Yi Tang2 and Gillian Stewart2, (1)Wayne State University, Detroit, MI, United States, (2)CUNY Queens College, School of Earth and Environmental Sciences, Flushing, NY, United States
1265
 
Distribution of iron(II) along the US GEOTRACES Eastern Pacific Zonal Transect
James W Moffett, University of Southern California, Department of Biological Sciences, Los Angeles, CA, United States and Peter Neil Sedwick, Old Dominion University, Department of Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States
1266
 
GEOTRACES Eastern South Pacific: Characterizing Water Mass Properties and Timescales
Molly Martin, Rana A Fine and James D Happell, University of Miami, Miami, FL, United States
1267
 
The Speciation of Particulate Iron and Carbon in the East Pacific Rise 15oS Near-field Hydrothermal Plume and Underlying Sediments
Brandy M Toner, Univ of MN /Soil Water&Climate, St. Paul, MN, United States, Phoebe J Lam, Woods Hole Oceanographic Inst, Department of Marine Chemistry and Geochemistry, Woods Hole, MA, United States, Sarah L Nicholas, Univ of MN, St. Paul, MN, United States, Daniel Ohnemus, Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States, Colleen Lynn Hoffman, University of Minnesota Twin Cities, Minneapolis, MN, United States, Jessica N Fitzsimmons, Rutgers University New Brunswick, New Brunswick, NJ, United States, Robert M Sherrell, Rutgers Univ, Institute of Marine and Coastal Sciences, New Brunswick, NJ, United States and Christopher R German, WHOI, Woods Hole, MA, United States
1268
 
Distribution and Isotopic Signature of "Ligand-leachable" Particulate Iron in the Eastern Tropical South Pacific: Initial Results from US GEOTRACES EPZT.
Chris Marsay and Seth John, University of South Carolina, Columbia, SC, United States
1269
 
Trace Element Fractional Solubility in Ultrapure Water From Samples Collected During the US GEOTRACES Eastern Tropical South Pacific Section
Clifton S Buck1, William M Landing2, Ana M Aguilar-Islas3 and Robert Rember3, (1)Skidaway Institute of Oceanography, Savannah, GA, United States, (2)Florida State University, Department of Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States, (3)University of Alaska Fairbanks, Fairbanks, AK, United States
1270
 
Distribution of mercury species across a zonal section of the Eastern Tropical South Pacific (2013 U.S. GEOTRACES)
Katlin Bowman1, Gretchen Swarr2, Chad R Hammerschmidt1, Carl H Lamborg2 and Alison Agather1, (1)Wright State University Main Campus, Dayton, OH, United States, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States
1271
 
Effects of Hydrothermal Scavenging of 230Th in the Eastern Equatorial Pacific Translated to the Deep Waters of the Central Equatorial Pacific
Grecia Ivonne Lopez, Texas A & M University, College Station, TX, United States and Franco Marcantonio, Texas A&M University, College Station, TX, United States
1272
 
Gradients in Strong and Weak Organic Copper-Binding Ligands in the Eastern Tropical South Pacific
Randelle Bundy1, Angel Ruacho1, Katherine Barbeau1, Claire Parker2, Saeed Roshan3 and Jingfeng Wu3, (1)Scripps Institution of Oceanography, Geosciences Research Division, La Jolla, CA, United States, (2)University of California Santa Cruz, Santa Cruz, CA, United States, (3)University of Miami, Miami, FL, United States
1273
 
Global Spatial and Temporal Variation of Cd:P in Euphotic Zone Particulates
Hannah Bourne1, James K B Bishop1 and Todd Wood2, (1)University of California Berkeley, Berkeley, CA, United States, (2)Lawrence Berkeley National Laboratory, Berkeley, CA, United States
1274
 
Dissolved Iron Speciation in the Eastern Tropical South Pacific: Results from the U.S. GEOTRACES Section Cruise
Kristen N Buck, University of South Florida Tampa, Tampa, FL, United States
1275
 
227Ac in the Deep South Pacific along the Peru-Tahiti GEOTRACES Transect
Douglas E Hammond1, Matthew A Charette2, Willard S Moore3, Paul Henderson2, Virginie Sanial2,4, Lauren Elizabeth Kipp2 and Robert F Anderson5, (1)University of Southern California, Los Angeles, CA, United States, (2)WHOI, Woods Hole, MA, United States, (3)University of South Carolina Columbia, Columbia, SC, United States, (4)LEGOS Laboratoire d'Etudes en Geophysique et Océanographie Spatiale, TOULOUSE, France, (5)Lamont-Doherty Earth Obs, Palisades, NY, United States
1276
 
Model exploration of the processes governing iron scavenging and the strength of the hydrothermal vent iron source
Elliot Sherman and Jefferson Keith Moore, University of California Irvine, Irvine, CA, United States
1277
 
A 4300km-Long Particulate Hydrothermal Plume West of the Southern East Pacific Rise (15°S): Particulate Minor and Trace Elements from the U.S. GEOTRACES Eastern Pacific Zonal Transect
Jessica N Fitzsimmons1, Kiefer O Forsch1,2, Robert M Sherrell1,3 and Christopher R German4, (1)Rutgers University New Brunswick, New Brunswick, NJ, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Rutgers University, Department of Earth and Planetary Sciences, Piscataway, NJ, United States, (4)Woods Hole Oceanographic Inst., Woods Hole, MA, United States
1278
 
The Distribution of Dissolved Barium from US GEOTRACES cruises in the North Atlantic and Eastern Tropical South Pacific
Alan M Shiller and Karen Grissom, University of Southern Mississippi, Dept. of Marine Science, Stennis Space Center, MS, United States
1279
 
Dissolved lead in the deep Southeast Pacific Ocean: results of the 2013 US GEOTRACES cruise
Jong-mi Lee1, Jing Zhang2, Yolanda Echegoyen1 and Edward A Boyle1, (1)Massachusetts Institute of Technology, Earth Atmospheric and Planetary Sciences, Cambridge, MA, United States, (2)East China Normal University, Shanghai, China
1280
 
Overview of Hydrographic Data From the GEOTRACES EPZT Cruise
James H Swift1, Christopher R German2, James W Moffett3, Gregory A Cutter4, Susan M Becker5, Mary Carol Johnson5, Melissa T Miller5 and Robert Palomares5, (1)UCSD/SIO, La Jolla, CA, United States, (2)WHOI, Woods Hole, MA, United States, (3)University of Southern California, Department of Biological Sciences, Los Angeles, CA, United States, (4)Old Dominion University, Gloucester, VA, United States, (5)Scripps Institution of Oceanography, La Jolla, CA, United States
 
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