Now showing items 1-5 of 5

    • Changes in micronutrient supply to the surface Southern Ocean (Atlantic sector) across the glacial termination 

      Hendry, Katharine R.; Rickaby, Rosalind E. M.; Allen, Claire S. (American Geophysical Union, 2011-09-16)
      Major deepwater masses upwell and reach the surface in the Southern Ocean, forming an important conduit supplying nutrients and micronutrients to the surface and playing a key role in the regulation of global climate through ...
    • The cobalt cycle in the Tropical Pacific Ocean 

      Hawco, Nicholas J. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2017-02)
      Although over a dozen elements are needed to support phytoplankton growth, only a few are considered to be growth-limiting. As the central atom in vitamin B12, cobalt is crucial for metabolism, but its status as a limiting ...
    • Dissolved zinc in the subarctic North Pacific and Bering Sea : its distribution, speciation, and importance to primary producers 

      Jakuba, Rachel W.; Saito, Mak A.; Moffett, James W.; Xu, Yan (American Geophysical Union, 2012-05-12)
      The eastern subarctic North Pacific, an area of high nutrients and low chlorophyll, has been studied with respect to the potential for iron to control primary production. The geochemistry of zinc, a critical micronutrient ...
    • The marine biogeochemistry of zinc isotopes 

      John, Seth G. (Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2007-06)
      Zinc (Zn) stable isotopes can record information about important oceanographic processes. This thesis presents data on Zn isotopes in anthropogenic materials, hydrothermal fluids and minerals, cultured marine phytoplankton, ...
    • Opal (Zn/Si) ratios as a nearshore geochemical proxy in coastal Antarctica 

      Hendry, Katharine R.; Rickaby, Rosalind E. M. (American Geophysical Union, 2008-06-18)
      During the last 50 years, the Antarctic Peninsula has experienced rapid warming with associated retreat of 87% of marine and tidewater glacier fronts. Accelerated glacial retreat and iceberg calving may have a significant ...