SHORT, Clark, Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Ave, Socorro, NM 87801, HEIZLER, Matthew, New Mexico Geochronology Research Laboratory, New Mexico Bureau of Mines & Mineral Resources, 801 Leroy Place, New Mexico Tech, Socorro, NM 87801-4796, HEIZLER, Lynn L., New Mexico Bureau of Geology, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801 and PARSONS, Ian, Grant Institute of Earth Sci, University of Edinburgh, West Mains Road, Edinburgh, EH9 3JW, United Kingdom, cshort@nmt.edu, cshort@nmt.edu

REDDY, Steven, Applied Geology, Curtin University, Perth, WA6102, Australia and TIMMS, Nick, Applied Geology, Curtin University, GPO Box U1987, Perth, W, Australia, s.reddy@curtin.edu.au, s.reddy@curtin.edu.au

MORGAN, Sven, Department of Earth and Atmospheric Sciences, Central Michigan University, 314 Brooks Hall, Mount Pleasant, MI 48859, SADORSKI, Joseph, Department of Geology and Meteorology, Central Michigan University, 320 Brooks Hall, Mt. Pleasant, MI 48859, NABELEK, Peter I., Geological Sciences, University of Missouri, 101 Geological Sciences Bldg, Columbia, MO 65211, STEPHENSON, Sarah, Geological Sciences, Univ of Missouri-Columbia, 101 Geological Sciences Bldg, Columbia, MO 65211, STUDENT, James J., Department of Geology and Meteorology, Central Michigan University, 314 Brooks Hall, Mt. Pleasant, MI 48859 and VALLEY, John, Department of Geoscience, University of Wisconsin, Madison, WI 53706, sador1jf@cmich.edu, sador1jf@cmich.edu

FITZ-DIAZ, Elisa, Department of Geology and Geophysics, University of Minnesota, 310 Pillsbury Dr SE, Minneapolis, MN 55455-0219, KIRSCHNER, D.L., Earth & Atmospheric Sciences, Saint Louis Univ, 329 Macelwane Hall, 3507 Laclede Ave, St. Louis, MO MO 63103, SIEBENALLER, Luc, University of Lausanne, Institute of Minerology and Geochemistry (IMG), Quartier UNIL-Dorigny, Bâtiment Anthropole, Lausanne, 1015, Switzerland and HUDLESTON, Peter, Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455, fitzd008@umn.edu, fitzd008@umn.edu

DEVASTO, Michael, A., Geosciences, UW-Milwaukee, Milwaukee, WI 53201 and CZECK, Dyanna M., Geosciences, University of Wisconsin - Milwaukee, P.O. Box 413, Milwaukee, WI 53201, mdevasto@uwm.edu, mdevasto@uwm.edu

NACHBOR, Amelia, Department of Geosciences, Univ of Wisconsin-Milwaukee, P.O. Box 413, 366 Lapham Hall, Milwaukee, WI 53201, CZECK, Dyanna, Geosciences, Univ of Wisconsin - Milwaukee, PO Box 413, Milwaukee, WI 53201, YONKEE, Adolph, Department of Geosciences, Weber State University, 2507 University Circle, Ogden, UT 84408 and JOHNSON, Kimberly R., Geosciences, University of Wisconsin - Milwaukee, P. O. Box 413, Milwaukee, WI 53201, anachbor@uwm.edu, anachbor@uwm.edu

MCPHERREN, Eric D., Department of Geology and Geophysics, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, KUIPER, Yvette D., Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401 and BEANE, Rachel J., Earth and Oceanographic Science, Bowdoin College, Brunswick, ME 04011, eric.mcpherren.1@bc.edu, eric.mcpherren.1@bc.edu