MONDAY, June 12, 1995, 0900-1200;  DISCUSSION LEADER:  Kenneth Bruland

  Biogeochemistry of Trace Element Uptake

William Sunda
"Relationships between algal uptake and biogeochemical cycling of trace metals in the ocean"

James Moffett
"Cu speciation in the upper water column and its impact on phytoplankton assemblages"

David Hutchins
"The biogeochemical fate of biological Fe"

MONDAY, June 12, 1995 1930-2200;  DISCUSSION LEADER:  Frank Millero

                                      Chemical Aspects of Trace Element Uptake

Francois Morel:       "Trace elements and major nutrients colimitation"

Alvin Crumbliss
"Coordination chemistry related to Fe distribution in natural waters"

TUESDAY, June 13, 1995 0900-1200;  DISCUSSION LEADER:  Clare Reimers

                        Cycling and Fluxes of Organic C, Fe, and Mn in Sediments

Gert De Lange
"Early diagenesis and its influence on climatic signals in marine sediments"

Bjorn Sundby
"Probing the geochemistry of Fe and Mn in coastal marine sediments"

David Burdige
"Mn redox cycling in sediments: relationships to carbon cycling in recent sediments and on Glacial-Holocene time scales"

TUESDAY, June 13, 1995  1930-2200;  DISCUSSION LEADER:  Wil Berelson

                                              Microbial Processes in Sediments

Bo Thamdrup: "Pathways of organic oxidation in continental margin sediments"

Kenneth Nealson
"Mechanism(s) of microbial Fe, S and Mn reduction from the study of mutants of Shewanella putrefaciens".

WEDNESDAY, June 14, 1995  0900-1200;  DISCUSSION LEADER:  Thomas Church

                               Chemical tracers for primary production and export

Ken Buesseler
"Recent advances in using Thorium-234 as a tracer of upper ocean particle export"

Kelly Falkner
"Barium cycling and productivity: exploring their link in the Arctic Ocean"

Thomas Pederson
"Relationships among nutrient utilization, organic carbon burial and P_CO2 in Pacific upwelling regions during the late quaternary"

WEDNESDAY, June 14, 1995  1930-2200;  DISCUSSION LEADER:  Billy Moore

                                                   Hydrothermal Vent Dynamics

Karen Vondamm
"Controls on the temporal variability and chemistry of seafloor hydrothermal fluids"

Frank Sansone
"Fluxes of volatiles from hydrothermal systems - ridge axis and flank vents, hot spot volcanoes, and lava/seawater interactions"

THURSDAY, June 15, 1995  0900-1200;  DISCUSSION LEADER:  Andrew Dickson

                                            Atmospheric-Ocean Transfer of CO₂

Robert Byrne
"Constructing a master variable: pH observations in seawater"

Robbie Toggweiler
"Role of denitrification in the nutrient budget of the Equatorial Pacific upwelling system"

Pieter Tans
"What we can learn about CO₂ uptake by the oceans from atmospheric CO₂ and isotopic measurements"

THURSDAY, June 15, 1995  1930-2200;  DISCUSSION LEADER:  George Luther

                             Upper Ocean Dynamics at the Time Series Locations

Luis Tupas
"Unexpected biogeochemical cycling pathways at the US-JGOFS time series station ALOHA"

Anthony Michaels
"Climate linkages and feedbacks with the biogeochemistry of the Sargasso Sea"

FRIDAY, June 16, 1995  0830-1130;  DISCUSSION LEADER:  David Burdige

                                                               Organic Carbon

Jonathan Sharp
"The new DOC is back again: Accurate measurements of dissolved organic carbon in the sea for evaluating oceanic fluxes and microbial dynamics"

Ann McNichol
"Carbon cycling in the ocean and its sediments: Insights from AMS radiocarbon measurements"

Rick Keil
"Understanding diagenesis through molecular-level analyses"