BUSBY, Cathy J., Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106-9630, cathy.busby@ucsb.edu and PUTIRKA, Keith, Department of Earth and Environmental Sciences, California State University - Fresno, 2345 E. San Ramon Ave, MS/MH24, Fresno, CA 93720

HART, William K.¹, BRUESEKE, Matthew E.², and BRUDZINSKI, Michael R.¹, (1) Department of Geology & Environmental Earth Science, Miami University, 114 Shideler Hall, Oxford, OH 45056, hartwk@MiamiOH.edu, (2) Department of Geology, Kansas State University, Manhattan, KS 66506

FARMER, G. Lang, Dept. of Geological Sciences and CIRES, Univ. of Colorado, Campus Box 399, Boulder, CO 80309-0399, farmer@colorado.edu

HO, Kelly T., Department of Earth Sciences, University of Arkansas at Little Rock, 2801 S University Ave, FH 309, Little Rock, AR 72204, ktho@ualr.edu, RIGGS, Nancy R., Geology, School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ 86011-4099, and SOMMER, Koby, Environmental Science, Sitting Bull College, 805 1ST AVE E, Mobridge, SD 57601

ACOSTA, Marisa D. and STELLING, Pete, Geology, Western Washington University, 516 High St, Bellingham, WA 98225, risa.acosta@gmail.com

FERRARI, Luca¹, BRYAN, Scott², OROZCO, Maria Teresa¹, and LOPEZ MARTINEZ, Margarita³, (1) Centro de Geociencias, Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Blvd. Juriquilla 3001, Queretaro, 76230, Mexico, luca@geociencias.unam.mx, (2) Earth, Environmental and Biological Sciences, Queensland University of Technology, GPO Box 2434, Brisbane, 4001, Australia, (3) Centro de Investigaciones Cientificas y Educacion Superior de Ensenada, Km. 107 Carrertera Tijuana-Ensenada, Ensenada, Baja California Norte, Mexico

MULLEN, Emily K.¹, WEIS, Dominique¹, and MCCALLUM, I. Stewart², (1) Earth, Ocean and Atmospheric Sciences, University of British Columbia, Pacific Centre for Isotopic and Geochemical Research, 2020-2207 Main Mall, Vancouver, BC V6T 1Z4, Canada, emullen@eos.ubc.ca, (2) Earth and Space Sciences, University of Washington, Box 351310, Seattle, WA 98195

CLAIBORNE, Lily L.¹, MCDOWELL, Susanne M.², MILLER, Calvin F.¹, LANG, N.P.³, FERGUSON, Charles A.⁴, CRIBB, J. Warner⁵, and COVEY, Aaron K.¹, (1) Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, lily.claiborne@vanderbilt.edu, (2) Department of Geology, Hanover College, Hanover, IN 47243, (3) Department of Geology, Mercyhurst University, Erie, PA 16546, (4) Arizona Geological Survey, 416 West Congress, Suite 100, Tucson, AZ 85719, (5) Geosciences, Middle Tennessee State Univ, Murfreesboro, TN 37132

SELIGMAN, Angela Nicole, University of Oregon, 1272 University of Oregon, Eugene, OR 97403, seligman@uoregon.edu, BINDEMAN, Ilya N., Geological Sciences, 1272 University of Oregon, Eugene, OR 97403, MCCLAUGHRY, Jason D., Oregon Department of Geology and Mineral Industries, 1995 3rd Street, Suite 130, Baker City, OR 97814, STERN, Richard A., Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB T6G 2E3, Canada, and FISHER, Christopher, School of the Environment, Washington State University, Pullman, WA 99164

RIVERA, Tiffany A.¹, SCHMITZ, Mark D.², CROWLEY, James L.², and JICHA, Brian R.³, (1) Isotope Geology Lab, Boise State University, 1910 University Dr, Boise, ID 83725, tiffanyarivera@gmail.com, (2) Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, (3) Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706

JOHN, David A., U.S. Geological Survey, 345 Middlefield Rd. MS-901, Menlo Park, CA 94025, djohn@usgs.gov, HENRY, Christopher D., Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV 89557, COLGAN, Joseph P., U.S. Geological Survey, 345 Middlefield Rd. MS 973, Menlo Park, CA 94025, and WATTS, Kathryn E., U.S. Geological Survey, 345 Middlefield Rd. MS 973, Menlo Park, CA 94025

BENSON, T.R., Geological and Environmental Sciences, Stanford University, 450 Serra Mall Bdg. 320, Stanford, CA 94305, trb@stanford.edu, MAHOOD, Gail A., Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, and COBLE, Matthew A., Department of Geological and Environmental Sciences, Stanford University, 450 Serra Mall, Building 320, Stanford, CA 94305

KIMBROUGH, David L., Geological Sciences, San Diego State University, San Diego, CA 92182-1020, dkimbrough@mail.sdsu.edu and CAMP, Victor E., Geological Sciences, San Diego State Univ, 5500 Campanile Dr, San Diego, CA 92182-1020

THORKELSON, Derek¹, MADSEN, Julianne K.², and PELLETT, Christa², (1) Earth Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada, dthorkel@sfu.ca, (2) Earth Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada