DECELLES, P.G., PAINTER, C.S., CARRAPA, B., THOMSON, S.N., LEARY, R.J., and GEHRELS, G.E., Department of Geosciences, University of Arizona, Tucson, AZ 85721, decelles@email.arizona.edu

LASKOWSKI, Andrew, DECELLES, Peter G., and GEHRELS, George E., Department of Geosciences, University of Arizona, Tucson, AZ 85721, aklask@email.arizona.edu

SURPLESS, Kathleen D., Geosciences, Trinity University, One Trinity Place, San Antonio, TX 78212, ksurples@trinity.edu, SICKMANN, Zachary, Department of Geological and Environmental Sciences, Stanford University, 450 Serra Mall, Building 320, Stanford, CA 94305, and KOPLITZ, Trevor, Geosciences, Trinity University, One Trinity Place, San Antonio, 78212

COPELAND, Peter, Earth and Atmos. Sci, University of Houston, 312 Science and Research 1, Houston, TX 77204, copeland@uh.edu, QUADE, Jay, Geosciences, University of Arizona, Tucson, AZ 85721, LAWTON, Timothy F., Centro de Geociencias, Universidad Nacional Autónoma de México, Blvd. Juriquilla No. 3001, Querétaro, 76230, Mexico, TOMLINSON, Donald W. Jr, Geosciences, University of Houston, 312 Science and Research 1, Houston, TX 77204-5007, and MURPHY, Michael A., Earth and Atmos. Sci, University of Houston, 4800 Calhoun Rd, Houston, TX 77204

SHARMAN, Glenn R., Geological and Environmental Sciences, Stanford University, 450 Serra Mall, Building 320, Stanford University, Stanford, CA 9305, gsharman@stanford.edu, GRAHAM, Stephan A., Department of Geological and Environmental Sciences, Stanford University, 450 Serra Mall, Bldg. 320, Stanford, CA 94305-2115, GROVE, Marty, Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, and WRIGHT, James E., Department of Geology, University of Georgia, Athens, GA 30602

JOHNSTON, Scott M., Physics Department, California Polytechnic State University, San Luis Obispo, CA 93407, scjohnst@calpoly.edu

CHAPMAN, Alan D., Geological Sciences and Engineering, Missouri University of Science and Technology, 129 McNutt Hall, Rolla, MO 65409, chapmanad@mst.edu, JACOBSON, Carl, Dept. Geological and Atmospheric Sciences, Iowa State Univ, Ames, IA 50011-3212, GROVE, Marty, Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, and DUMITRU, Trevor, Geological and Environmental Sciences, Stanford Univ, Bldg 320, Serra Mall, Stanford, CA 94305-2115

JACOBSON, Carl E., Geological and Atmospheric Sciences, Iowa State University, Ames, IA 50011-3212, cejac@iastate.edu, BARTH, Andrew P., Earth Sciences, Indiana University-Purdue University, 723 West Michigan Street, Indianapolis, IN 46202, GROVE, Marty J., Stanford University, Stanford, CA 94305, CHAPMAN, Alan D., Geological Sciences and Engineering, Missouri University of Science and Technology, 129 McNutt Hall, Rolla, MO 65409, WOODEN, Joseph L., USGS-Stanford Ion Microprobe Facility, Stanford University, Stanford, CA 94305, DUMITRU, Trevor A., Dept. of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305-2115, and INGERSOLL, Raymond V., Earth and Space Sciences, University of California, Los Angeles, CA 90095-1567

SZWARC, Tyler¹, JOHNSON, Cari¹, and MCFARLANE, Chris², (1) Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, tyler.szwarc@utah.edu, (2) Department of Earth Sciences, University of New Brunswick, 2 Bailey Drive, Fredericton, NB E3B 5A3, Canada

LAWTON, Timothy F.¹, CLINKSCALES, Christopher A.², EATON, Jeffery G.³, GODFREY, Kari N.³, and SCHELLENBACH, William L.⁴, (1) Centro de Geociencias, Universidad Nacional Autónoma de México, Blvd. Juriquilla No. 3001, Querétaro, 76230, Mexico, tlawton@geociencias.unam.mx, (2) ConocoPhillips Co, 600 North Dairy Ashford, Houston, TX 77079, (3) Department of Geosciences, Weber State University, Department Of Geosciences, Ogden, UT 84408-2507, (4) Apache Corporation, 303 Veterans Airpark Ln, Midland, TX 79705-4561

DE LOS SANTOS, Marie, Dept. of Earth and Atmospheric Sci, University of Houston, 312 Science and Research 1, Houston, TX 77204, mariegdls@gmail.com, LAWTON, Timothy F., Centro de Geociencias, Universidad Nacional Autónoma de México, Blvd. Juriquilla No. 3001, Querétaro, 76230, Mexico, COPELAND, Peter, Earth and Atmos. Sci, University of Houston, 312 Science and Research 1, Houston, TX 77204, QUADE, Jay, Geosciences, University of Arizona, Tucson, AZ 85721, and HALL, Stuart A., Department of Earth and Atmospheric Sci, University of Houston, 312 Science and Research Building I, Houston, TX 77204-5007

RIDGWAY, Kenneth D., Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907, ridge@purdue.edu, BENOWITZ, Jeff A., Geophysical Institute, University of Alaska Fairbanks, P.O. Box 755780, Fairbanks, AK 99775, BRENNAN, Patrick, Chevron Energy Technology Company, 1400 Smith St, Houston, TX 77002, TROP, Jeffrey M., Dept. of Geology, Bucknell University, 1 Dent Drive, Lewisburg, PA 17837, FINZEL, Emily S., Department of Geoscience, University of Iowa, Trowbridge Hall, North Capitol Street, Iowa City, IA 52242, and COLE, Ronald B., Dept of Geology, Allegheny College, 520 N. Main Street, Meadville, PA 16335

MAHONEY, J.B., University of Wisconsin, Eau Clare, Eau Claire, 54701, mahonej@uwec.edu, HAGGART, James W., Geol Survey Canada, 625 Robson St, Vancouver, BC V6B 5J3, Canada, KIMBROUGH, David L., Geological Sciences, San Diego State University, San Diego, CA 92182, and GROVE, Marty, Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305

PECHA, Mark¹, GEHRELS, George², DICKINSON, William R.¹, KARLSTROM, Karl E.³, and DONAHUE, Magdalena S.⁴, (1) Department of Geosciences, University of Arizona, Tucson, AZ 85721, mpecha@email.arizona.edu, (2) Dept. of Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721, (3) Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, (4) Earth and Planetary Sciences, University of New Mexico, Northrop Hall, MSCO3-2040; 1 University of New Mexico, Albuquerque, NM 87131-0001

KIMBROUGH, David L., Geological Sciences, San Diego State University, San Diego, CA 92182-1020, dkimbrough@mail.sdsu.edu, GROVE, Marty, Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, MAHONEY, J. Brian, Department. of Geology, University of Wisconsin Eau Claire, Eau Claire, WI 54702, and SURPLESS, Kathleen, Geosciences, Trinity University, One Trinity Place, San Antonio, TX 78212