CAMPBELL, Karen1, MORIN, Paul
2, HAMILTON, Patrick
3, MARR, Jeff
1, STRONG, Nikki
4, TAL, Michal
4, FREISEN, Benjamin
5, BAUMTROG, Jill
6, SANDLAND, Travis
7 and MENLOVE, Rebecca
8, (1)National Ctr for Earth-surface Dynamics, St. Anthony Falls Laboratory, 2 Third Ave. SE, Minneapolis, MN 55414, (2)Department of Geology and Geophysics, Univ of Minnesota, 310 Pillsbury Drive SE, Minneapolis, MN 55455-0219, (3)Sci Museum of Minnesota, 120 West Kellogg Blvd, St Paul, MN 55102, (4)Geology & Geophysics, Univ of Minnesota, 310 Pillsbury Drive SE, Room 108, Minneapolis, MN 55455-0219, (5)St. Anthony Falls Laboratory, 2 3rd Ave SE, Minneapolis, MN 55414, (6)Education and Human Development, Univ of Minnesota, 2 Third Ave SE, St. Anthony Falls Laboratory, Minneapolis, MN 55414, (7)Science Museum of Minnesota, 120 West Kellogg Blvd, Saint Paul, MN 55102, (8)Utah Museum Of Natural History, 1390 PRESIDENTS CIR RM 304, Salt Lake City, UT 84112, kmc@umn.edu, kmc@umn.edu