The Geological Society of America
2013 GSA Annual Meeting in Denver: 125th Anniversary of GSA (27-30 October 2013)
Denver, Colorado, USA

POTTER, Christopher J., U.S. Geological Survey, Mail Stop 939, Denver Federal Center, Denver, CO 80225-0046, cpotter@usgs.gov

GALLEGOS, Tanya J., Eastern Energy Resources Science Center, U.S. Geological Survey, 12201 Sunrise Valley Dr, MS 956, Reston, VA 20192 and VARELA, Brian, Department of the Interior, United States Geologic Survey, Denver Federal Center, PO BOX 25046, Bldg 25, MS 939, Denver, CO 80225, tgallegos@usgs.gov

GILMAN, Jessica B.¹, LERNER, B.M.², WARNEKE, C.², GRAUS, M.², KOSS, A.², PEISCHL, J.², WILLIAMS, E.J.³, ROBERTS, J.³ and DE GOUW, J.A.¹, (1)Cooperative Institute for Research in Environmental Sciences, University of Colorado at Boulder, Boulder, CO 80305, (2)Boulder, CO 80305, (3)Chemical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO 80309, jessica.gilman@noaa.gov

POLLOCK, Erik D., University of Arkansas Stable Isotope Laboratory, University of Arkansas, Fayetteville, AR 72701, AUSTIN, B.A., Biological Sciences, University of Arkansas, Fayetteville, AR 72701, EVANS WHITE, M.A., Dept. Of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, PONZIO, J., Stable Isotope Lab, University of Arkansas, Fayetteville, AR 72701 and HAGGARD, B.E., Dept of Bio-Ag Engineering, University of Arkansas, Fayetteville, AR 72701, epolloc@uark.edu

HEILWEIL, Victor M., Utah Water Science Center, U.S. Geological Survey, 2329 Orton Circle, Salt Lake City, UT 84119, SOLOMON, D. Kip, Geology and Geophysics, University of Utah, Frederick Albert Sutton Building, 115 S. 1460 E. Rm 383, Salt Lake City, UT 84112, DARRAH, Thomas H., School of Earth Sciences, Ohio State University, 125 South Oval Mall, Columbus, OH 43210, RISSER, Dennis W., Pennsylvania Water Science Center, US Geological Survey, 215 Linekiln Road, New Cumberland, PA 17070, HYNEK, Scott A., Geosciences, Penn State University, 302 Hosler Building, University Park, PA 16802 and GRIEVE, Paul, Geosciences, Penn State, 236 Deike, State College, PA 16802, heilweil@usgs.gov

MCMAHON, Peter B., U.S. Geological Survey, Colorado Water Science Center, MS 415 Denver Federal Center, Lakewood, CO 80225, THOMAS, Judith C., U.S. Geological Survey, 764 Horizon Dr, Room 125, Grand Junction, CO 81506 and HUNT, Andrew G., U.S. Geological Survey, Denver Federal Center, Bld 21, MS 963, Denver, CO 80225, pmcmahon@usgs.gov

VENGOSH, Avner¹, WARNER, Nathaniel R.², JACKSON, Robert B.³ and DARRAH, Thomas H.¹, (1)Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University, Durham, NC 27708, (2)Department of Earth Science, Dartmouth College, Hanover, NH 03755, (3)Nicholas School of the Environment and Center on Global Change, Duke University, Box 90338, Durham, NC 27708, vengosh@duke.edu

WISTER, Katherine H.¹, WESTON, Nathaniel B.², HAGGERTY, Molly K.¹, DONNELLY, Brian R.¹, ALESI, Sara C.¹, IARIA, Toni N.¹ and GOLDSMITH, Steven T.¹, (1)Department of Geography and the Environment, Villanova University, 800 Lancaster Ave, Villanova, PA 19085, (2)Department of Geography and the Environment, Villanova University, G65C Mendel Science Center, 800 E Lancaster Avenue, Villanova, PA 19085, kwister@villanova.edu

BOWEN, Zachary H., U.S. Geological Survey, Fort Collins Science Center, 2150C Centre Avenue, Fort Collins, CO 80526-8118, MOTT, David N., U.S. Geological Survey, Oklahoma Water Science Center, 202 NW 66th, Bldg 7, Oklahoma City, OK 73116 and POTTER, Christopher J., U.S. Geological Survey, Mail Stop 939, Denver Federal Center, Denver, CO 80225-0046, bowenz@usgs.gov

PARK, Joshua, Geological Sciences, Cal Poly Pomona, Pomona, CA 91768, SARGENT, Joshua G., Geological Sciences, California Polytechnic University Pomona, 3801 West Temple Avenue, Pomona, CA 91768 and OSBORN, Stephen G., Geological Sciences Department, California State Polytechnic University - Pomona, Pomona, 91768, joshuap1@csupomona.edu