2009 Portland GSA Annual Meeting (18-21 October 2009)

ZANDT, George, Department of Geosciences, University of Arizona, Tucson, AZ 85721, PORTER, Ryan C., Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Road, NW, Washington, DC 20015 and OKAYA, David, Dept. Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, gzandt@email.arizona.edu, gzandt@email.arizona.edu

OKAYA, David, Dept. Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740 and CHRISTENSEN, Nikolas I., Dept. Earth and Ocean Sciences, University of British Columbia, Vancouver, BC V6T 1Z4, Canada, okaya@usc.edu, okaya@usc.edu

BUTLER, Robert W.H., Geology and Petroleum Geology, School of Geosciences, University of Aberdeen, Meston Building, King's College, Aberdeen, AB24 3UE, United Kingdom and LLOYD, Geoffrey E., School of Earth and Environment, Leeds University, Leeds, LS2 9JT, United Kingdom, rob.butler@abdn.ac.uk, rob.butler@abdn.ac.uk

MAHAN, Kevin H., Geological Sciences, University of Colorado-Boulder, 2200 Colorado Ave, Boulder, CO 80309, mahank@colorado.edu, mahank@colorado.edu

BRANDON, Mark T., Geology and Geophysics, Yale University, New Haven, CT 06520-8109, mark.brandon@yale.edu, mark.brandon@yale.edu

JACOBSON, Carl, Dept. Geological and Atmospheric Sciences, Iowa State University, Ames, IA 50011-3212, OKAYA, David, Dept. Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740 and CHRISTENSEN, Nikolas I., Dept. Geology and Geophysics, University of Wisconsin-Madison, Madison, WI 53706, cejac@iastate.edu, cejac@iastate.edu

HACKER, Bradley R.¹, ERDMAN, Monica¹, MC KAY, Hannah¹, SEWARD, Gareth¹ and ZANDT, George², (1)Earth Science, University of California, Santa Barbara, CA 93106, (2)Department of Geosciences, University of Arizona, Tucson, AZ 85721, hacker@geol.ucsb.edu, hacker@geol.ucsb.edu

JOHNSON, Scott E., Department of Earth Sciences, University of Maine, 5790 Bryand Global Sciences, Orono, ME 04469, NAUS-THIJSSEN, Félice M.J., Department of Earth Sciences, University of Maine, Orono, ME 04469, VEL, Senthil S., Department of Mechanical Engineering, University of Maine, Orono, ME 04469 and OKAYA, David, Dept. Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, johnsons@maine.edu, johnsons@maine.edu