Marine Geology and Geochemistry Division

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Marine Geology and Geochemistry Division
MGGD

• MGGD folks
• 14 Oceanography Departmental Graduate Faculty
• 10 Research faculty and postdocs
• 15 graduate students
• Numerous undergraduate students
• Local high school students too
• Interdisciplinary division.diverse
  interdisciplinary research projects
• Focused into Major Research Themes
• Big Questions in Marine Geochemistry
• www.soest.hawaii.edu/oceanography/mggd
• (or from SOEST page?Oceanography?Groups?M
  GGD)

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Funding/Initiatives supporting MGGD Research
MGGD

• Coastal
• NSF OOI CoOP
• EPA BEACH
• NOAA ECOHAB IOOS Sea Grant
• Atmospheric Chemistry
• ONR Marine Aerosol Program
• NASA GTE
• Global Geochem Cycles and Paleoenvironments
• DoE (carbon cycling)
• NSF Ocean Acidification Ocean Carbon
  Biogeochemistry dddddEocene
  hyperthermals
• GEOTRACES
• Subseafloor geochemistry and geomicrobiology
• NSF IODP RIDGE 2000 MARGINS
• NASA Astrobiology Institute
• Moore Foundation

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MGGD Major research thrusts and Big questions
in Marine Geochemistry

• Biogeochemistry of Coastal Systems Nutrient and
  Trace Metal Cycling, Ecosystem Dynamics, and
  Human Impacts
• How do land-derived material inputs and physical
  oceanographic processes impact coastal
  biogeochemistry and water quality?
• How do changes in land use and nutrient input
  impact coastal ecosystem structure and dynamics?
• How do coastal ocean processes impact global
  element cycles?
• What are the effects of physical processes on
  sediment-seawater exchange in coastal systems?

J. Cowen B. Glazer E. DeCarlo F.
Mackenzie K. Ruttenberg F. Sansone
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MGGD Major research thrusts and Big questions
in Marine Geochemistry

• Marine Aerosols and Air-Sea Exchange
• How do aerosols influence climate?
• What are the key uncertainties in air-sea
  exchange/fluxes/impacts?
• How can we constrain marine sources and sinks,
  and atmospheric transport?

T. Clarke D. Ho S.
Howell B. Huebert C. Measures
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MGGD Major research thrusts and Big questions
in Marine Geochemistry

• Global Geochemical Cycles Contemporary to
  Paleoenvironments
• What are the human impacts on global elemental
  cycles?
• How will ocean acidification affect carbonate
  production in marine organisms and carbonate
  dissolution in reefs and sediments?
• How can paleoclimatology help us understand and
  predict contemporary global climate changes?
• What are the roles of sediment geochemistry and
  seafloor-ocean exchange in sinks/sources of
  global elemental cycles?

E. DeCarlo T. Clarke B. Huebert
T. Li F.Mackenzie C.Measures K.
Ruttenberg J.Schoonmaker R. Zeebe
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MGGD Major research thrusts and Big questions
in Marine Geochemistry

• Biogeochemical Cycling and Geomicrobiology at
  MORs, Ridge Flanks, Hot Spots, and Subduction
  Zones
• How do hydrothermal geochemical fluxes impact
  ocean chemistry?
• How does fluid flow affect mass transport w/in
  subduction zones?
• What is the magnitude, character and impact of
  deep subseafloor biosphere?
• What is the impact of magmatic/tectonic events on
  geochemical fluxes and microbial activity?
• What do extreme environments tell us about
  potential for life elsewhere in the universe?

J. Cowen B. Glazer M. Mottl and
M. Rappe G. Steward G. Wang
(HIMB) (Bio Ocean)
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MGGD Major research thrusts and Big questions
in Marine Geochemistry

• Ocean observing technologies and applications
• Regional cabled observatories (HI coastal Kilo
  Nalu JdFR flanks Neptune)
• Non-cabled coastal observatories (Heeia
  Fishpond CRIMP buoy)
• Deep crustal (IODP-CORK) observatories (JdFR
  flanks North Pond, MAR)
• Ability to conduct adaptive sampling, and
  remotely operated experiments and observations
• Sampling and sensor technology

J. Cowen E. DeCarlo B. Glazer F.
Mackenzie K. Ruttenberg F. Sansone
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