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

KELLEY, Shari, Dept. of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM 87801 and MCKEON, Ryan E., Division of Geological and Planetary Sciences, California Institute of Technology, MC 100-23, 1200 E. California Blvd, Pasadena, CA 91125, sakelley@ix.netcom.com, sakelley@ix.netcom.com

DYESS, Jonathan, Department of Earth and Physical Sciences, Sul Ross State University, Box C-139, Alpine, TX 79832, URBANCZYK, Kevin, Department of Earth & Physical Science, Sul Ross State University, Box C-139, Alpine, TX 79832 and BLOUNT, Grady Price, Department of Physics, Angelo State University, ASU Station #11029, San Angelo, TX 76909, jdyess@sulross.edu, jdyess@sulross.edu

SATTERFIELD, Joseph I.¹, SCHREINER III, Henry F.¹, DYESS, Jonathan² and POPPELIERS, Christian³, (1)Physics Department, Angelo State University, ASU Station #10904, San Angelo, TX 76909, (2)Department of Geological Sciences, University of Minnesota Duluth, 1114 Kirby Dr, 229 Heller Hall, Duluth, MN 55812, (3)Dept. of Chemistry and Physics, Augusta State University, 2500 Walton Way, Augusta, GA 30904, joseph.satterfield@angelo.edu, joseph.satterfield@angelo.edu

SCHROEDER, Timothy¹, RIGGS, Nancy², ORT, Michael H.³ and TINNIN, Beau², (1)Natural Sciences, Bennington College, 1 College Drive, Bennington, VT 05201, (2)School of Earth Sciences and Environmental Sustainability, Northern Arizona Univ, PO Box 4099, Flagstaff, AZ 86011-4099, (3)Seses, Northern Arizona University, Box 4099, Flagstaff, AZ 86011, tschroeder@bennington.edu, tschroeder@bennington.edu

GOSS, Adam R., Department of Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville, FL 32611, GUTMANN, James T., Department of Earth and Environmental Sciences, Wesleyan University, 265 Church St, Middletown, CT 06459 and KAMENOV, G.D., Department of Geological Sciences, University of Florida, Gainesville, FL 32611, argoss@ufl.edu, argoss@ufl.edu

LAWTON, Timothy F.¹, GONZÁLEZ-LEÓN, Carlos M.², AMATO, Jeffrey M.¹, IRIONDO, Alexander³, LEGGETT, William J.⁴, MAUEL, David J.¹ and PERYAM, Thomas C.⁵, (1)Geological Sciences, New Mexico State University, MSC 3AB, P.O. Box 30001, Las Cruces, NM 88003, (2)Instituto de Geología, UNAM, Estación Regional del Noroeste, Apartado Postal 1039, Hermosillo, Sonora, 83000, Mexico, (3)Centro de Geociencias, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, 76230, Mexico, (4)Guadalupe Mountains National Park, 400 Pine Canyon Drive, Salt Flat, TX 79847, (5)Geological Sciences, University of Oregon, Eugene, OR 97403, tlawton@nmsu.edu, tlawton@nmsu.edu

TREMBLAY, Marissa M.¹, RENIK, Byrdie², HEMMING, Sidney R.² and CHRISTIE-BLICK, Nicholas², (1)Department of Environmental Science, Barnard College, 3009 Broadway, New York, NY 10027, (2)Department of Earth and Environmental Sciences and Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964, mmt2130@barnard.edu, mmt2130@barnard.edu

PLUHAR, Christopher J.¹, NGO, My My², LARSEN, Mark T.² and CARLSON, Chad W.³, (1)Earth & Environmental Sciences Dept, California State University, Fresno, 2576 E. San Ramon Ave., Mail Stop ST-24, Fresno, CA 93740, (2)Department of Earth & Environmental Sciences, California State University, Fresno, 2576 E. San Ramon Ave., Mail Stop ST-24, Fresno, CA 93740, (3)Nevada Bureau of Mines and Geology, University of Nevada, Reno, University of Nevada, Reno, Reno, NV 89557, mymydf@gmail.com, mymydf@gmail.com

BEYENE, Mengesha¹, WELLS, Michael², HOISCH, Thomas³, VERVOORT, Jeff⁴, STYGER, Sheena³ and SPELL, Terry L.⁵, (1)Department of Geoscience, University of Nevada Las Vegas, Las Vegas, NV 89154-4010, (2)Department of Geoscience, University of Nevada, Las Vegas, NV 89154-4010, (3)Department of Geology, Northern Arizona University, Flagstaff, AZ 86011, (4)School of the Environment, Washington State University, Pullman, WA 99164, (5)Department of Geoscience, University of Nevada Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154-4010, beyenem@unlv.nevada.edu, beyenem@unlv.nevada.edu

GROVE, Marty, Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, mjgrove@stanford.edu, mjgrove@stanford.edu

MORTON, Douglas M., U.S. Geological Survey, Dept of Earth Sciences, University of California, Riverside, 92521, KISTLER, R.W, U.S. Geological Survey, 345 Middlefied Road, Menlo Park, 94025, PREMO, Wayne R., U.S. Geol Survey, MS 980, P.O. Box 25046, Denver Federal Center, Denver, CO 80225, WOODEN, Joseph L., USGS-Stanford Ion Microprobe Laboratory, Stanford University, Stanford, CA 94305, LEE, Cin-Ty, Earth Science, Rice Univ, MS 126, 6100 Main St, Houston, TX 77005, MILLER, Fred K., U.S. Geological Survey, West 904, Riverside Ave, Spokane, 99201 and SNEE, Lawrence W., Global Gems and Geology, 215 Alpine Ave, Golden, CO 80401, douglas.morton@ucr.edu, douglas.morton@ucr.edu

BARTH, A.P., Earth Sciences, Indiana University-Purdue University, 723 West Michigan Street, Indianapolis, IN 46202, MILLER, D.M., U.S. Geol. Survey, 345 Middlefield Road, MS-975, Menlo Park, CA 94025, WOODEN, J.L., Stanford University, Stanford, CA 94305 and HOWARD, K.A., U.S. Geological Survey, 345 Middlefield Rd, MS/973, Menlo Park, CA 94025, ibsz100@iupui.edu, ibsz100@iupui.edu

ALSLEBEN, Helge, School of Geology, Energy, and the Environment, Texas Christian University, TCU Box 298830, Fort Worth, TX 76129, WETMORE, Paul H., Department of Geology, University of South Florida, 4202 E. Fowler Ave, SCA 528, Tampa, FL 33620 and PATERSON, Scott R., Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Zumberge Hall of Science (ZHS), Los Angeles, CA 90089-0740, h.alsleben@tcu.edu, h.alsleben@tcu.edu

DORSEY, Rebecca, Dept. of Geological Sciences, 1272 University of Oregon, Eugene, OR 97403 and AXEN, Gary, Department of Earth & Environmental Science, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, rdorsey@uoregon.edu, rdorsey@uoregon.edu

SPRINGER, Adam M.¹, CALLIHAN, Sean M.², WETMORE, Paul H.³, FLETCHER, John⁴, CONNOR, Charles⁵, BEESON, Jeffrey W.⁶ and WILSON, James³, (1)Department of Geology, University of South Florida, 4202 E. Fowler Ave., SCA 528, Tampa, FL 33620, (2)Dept. of Geology, University of South Florida, 4202 E. Fowler Ave, SCA 528, Tampa, FL 33620, (3)Department of Geology, University of South Florida, 4202 E. Fowler Ave, SCA 528, Tampa, FL 33620, (4)Geology, CICESE, PO Box 434843, San DIego, CA 92143, (5)Department of Geology, University of South Florida, SCA 528, 4202 E. Fowler Ave, Tampa, FL 33620, (6)Geology, University of South Florida, 4202 E. Fowler Ave, Tampa, FL 33620, amsprin2@mail.usf.edu, amsprin2@mail.usf.edu

WETMORE, Paul H., Department of Geology, University of South Florida, 4202 E. Fowler Ave, SCA 528, Tampa, FL 33620, FLETCHER, John, Geology, CICESE, PO Box 434843, San DIego, CA 92143, ALSLEBEN, Helge, Department of Geology, Texas Christian University, TCU Box 298830, Fort Worth, TX 76129, SPRINGER, Adam M., Dept. of Geology, University of South Florida, 4202 E. Fowler Ave, SCA 528, Tampa, FL 33620 and CALLIHAN, Sean, Department of Geology, University of South Florida, 4202 E. Fowler Ave., SCA 528, Tampa, FL 33620, pwetmore@cas.usf.edu, pwetmore@cas.usf.edu

CENTENO-GARCÍA, Elena, Instituto de Geología, Universidad Nacional Autónoma de México, Avenida Universidad # 3000, Ciudad Universitaria, México D. F, 04510, Mexico and BUSBY, Cathy J., Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106-9630, centeno@servidor.unam.mx, centeno@servidor.unam.mx