Cross-Disciplinary Collaborations in G

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GG Retreat with the Deans Office, Dec. 3, 2007

• Cross-Disciplinary Collaborations in GG
• Examples
• What helps facilitate these collaborations

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And now also Ken Rubin Stephanie Ingle Deborah
Eason Melissa Rotella Rhea Workman
Geochemistry
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G-PRIME
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Hanohano Anti-Neutrino Detector (PIs Learned,
Dye, Mahoney)
Deploy on central Pacific seafloor to 1. measure
neutrino mixing parameters and resolve neutrino
mass hierarchy 2. measure U and Th in deep
Earth 3. detect nuclear reactor activity
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IODP Drilling lower crust to reach mantle(Many
PIs, incl. E.Hellebrand, K. Johnson P. Fryer)

• Ground-truthing seismic and petrologic models to
  understand structure of oceanic crust
• Fresh mantle peridotites at 800 mbsf?

Atlantis Core Complex
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Atlantis Core Complex (MAR 30N) olivine-rich
gabbroic cumulates instead of mantle
No mantle peridotites Seismic reflection cannot
necessarily be linked to changes in rock
types Progress by collaboration between
geophysists, structural geologists, and
igneous/metamorphic petrologists
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Coastal Geology, Geochronology and
Geochemistry Answering questions about the Age,
Environments, Implications of Hawaiian
Paleo-Reefs and Shorelines
1. Lanai - emergent coral clastic terraces - Age
progressive, near shore/shoreline facies, not
from a megatsunami, lithospheric flexure. (Rubin,
Fletcher, Sherman, 2000)
2. Oahu Carbonate Shelf -
Pleistocene reef accretion. Located MIS7 reef
complex, late MIS5 reef front accretion, relation
to shorelines and sea level changes. (Sherman,
Fletcher, Rubin, 1999 Fletcher et al., in
press Sherman et al., in prep)
Now and in the future 3. Last Glacial Low stand
Much to learn Search and discover, date rocks,
search some more.. (Fletcher and Rubin)
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Mantle Dynamics and Magma GeochemistryIto,
Bianco, Becker, Mahoney, Ingle, Sinton, Garcia
Combining models of 1) upper mantle flow and 2)
melting of a heterogeneous mantle shows that
upper mantle dynamics can contribute large
geochemical variations that are usually
attributed to larger scale processes of mantle
mixing and mantle geochemical stratification.
Bianco et al., 2007
206Pb/204Pb
Ito and Mahoney, 2006
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• What facilitates cross-disciplinary
  collaborations?
• 1. Communication
• -- Participation in existing seminars
• -- GG Distinguished Lecture Series?
• -- Informal Settings - TGIF
• -- Stroll the Floors

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• What facilitates cross-disciplinary
  collaborations?
• 1. Communication
• -- Participation in existing seminars
• -- GG Distinguished Lecture Series?
• -- Informal Settings - TGIF
• -- Stroll the Floors
• 2. Students
• -- RA positions for grad student supported by
  the department or the school? Pooled R-Funds?

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• What facilitates cross-disciplinary
  collaborations?
• 1. Communication
• -- Participation in existing seminars
• -- GG Distinguished Lecture Series?
• -- Informal Settings - TGIF
• -- Stroll the Floors
• 2. Students
• -- RA positions for grad student supported by
  the department or the school? Pooled R-Funds?
• 3. Common Objectives
• -- Often inspired by one or two people.
• -- As a department, identify some common
  objectives (place of study or theme).