TORAN, Laura, Earth and Environmental Science, Temple University, Philadelphia, PA 19122, HERMAN, Ellen K., Department of Geology, Bucknell University, Lewisburg, PA 17837 and WHITE, William B., Department of Geosciences, The Pennsylvania State Univ, Deike Building, University Park, PA 16802, ltoran@temple.edu, ltoran@temple.edu

HARDEN, Tessa¹, O'CONNOR, Jim¹ and DRISCOLL, Daniel G.², (1)U.S. Geological Survey, 2130 SW 5th Avenue, Portland, OR 97201, (2)U.S. Geological Survey, 1608 Mountain View Road, Rapid City, SD 57702, tharden@usgs.gov, tharden@usgs.gov

VAN HENGSTUM, Peter J., Centre for Environmental and Marine Geology, Dalhousie University, 8 Edzel Castle Circle, Halifax, NS B3H 4J1, Canada, SCOTT, David B., Centre for Environmental and Marine Geology, Dalhousie University, 8 Edzel Castle Circle, Halifax, NS B3H 4J1, CHARETTE, Matthew A., Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Mail Stop 25, Woods Hole, MA 02543 and GROCKE, Darren R., Department of Earth Sciences, Durham University, South Road, Durham, DH1 3LE, United Kingdom, vanhengstum@dal.ca, vanhengstum@dal.ca

LUNDBERG, Joyce, Geography and Environmental Studies, Carleton University, Ottawa, ON K1S 5B6, Canada, LORD, Thomas, C., Centre for North-West Regional Studies, University of Lancaster, Lancaster, LA1 4YB, United Kingdom and MURPHY, Phillip, J., School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom, joyce.lundberg@carleton.ca, joyce.lundberg@carleton.ca

CHIRIENCO, M.I.¹, PANNO, S.V.², LUNDSTROM, C.C.¹, HACKLEY, K.C.² and HONG, W.², (1)Dept of Geology, University of Illinois, 1301 W Green St, Urbana, IL 61801, (2)Isotope Geochemistry Section, Illinois State Geological Survey, University of Illinois, 615 E. Peabody Drive, Champaign, IL 61820, mchirie2@illinois.edu, mchirie2@illinois.edu

REINHARDT, Eduard¹, GABRIEL, Jeremy¹, VAN HENGSTUM, Peter J.² and BEDDOWS, Patricia A.³, (1)School of Geography and Earth Sciences, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4K1, Canada, (2)Geology and Geophysics, Woods Hole Oceanographic Institution, 360 Woods Hole Road, Woods Hole, MA 02543, (3)Department of Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Rd. TECH-F374, Evanston, IL 60208-3130, ereinhar@mcmaster.ca, ereinhar@mcmaster.ca

BURGER, Paul A., Cave Resources Office, Carlsbad Caverns National Park, 3225 National Parks Highway, Carlsbad, NM 88220, paul_burger@nps.gov, paul_burger@nps.gov

RUSH, Jason, Kansas Geological Survey, The University of Kansas, 1930 Constant Avenue, Lawrence, KS 66047 and TROUTMAN, Tony J., Swift Energy, 2131 Palomar Airport Road, Carlsbad, CA 92011, rush@kgs.ku.edu, rush@kgs.ku.edu

SMOTHERMAN, Blake and SCHULMEISTER, Marcia K., Earth Science Department, Emporia State University, 1200 Commercial St, Emporia, KS 66801, jsmother@emporia.edu, jsmother@emporia.edu

PLOTNICK, Roy E., Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor St, Chicago, IL 60607, SCOTT, Andrew C., Department of Earth Sciences, Royal Holloway University of London, Egham, TW20 0EX, United Kingdom and KENIG, Fabien, Earth and Environmental Sciences, Univ of Illinois at Chicago, 845 W. Taylor St. (MC 186), Chicago, IL 60607-7059, plotnick@uic.edu, plotnick@uic.edu

AGENBROAD, Larry, Mammoth Site of Hot Springs, South Dakota, 1800 Highway 18 Bypass, Hot Springs, SD 57747, larrya@mammothsite.org, larrya@mammothsite.org

ALBURY, Nancy, Antiquities, Monuments and Museums Corporation, The National Museum of The Bahamas, P.O. Box AB20755, Marsh Harbour, Abaco, Bahamas, MORGAN, Gary S., New Mexico Museum of Natural History, 1801 Mountain Road NW, Albuquerque, NM 87104, FRANZ, Richard, Florida Museum of Natural History, University of Florida, P.O. Box 117800, Gainesville, FL 32611 and MYLROIE, John, Geosciences, Mississippi State University, Mississippi State, MS 39762, nancyalbury@gmail.com, nancyalbury@gmail.com

RUFFINI, Joseph J., Geosciences, University of Wisconsin - Milwaukee, 3209 N Maryland Ave, Milwaukee, WI 53211 and MCHENRY, Lindsay J., Geosciences, University of Wisconsin- Milwaukee, 3209 N Maryland Ave, Milwaukee, WI 53211, jruffini@uwm.edu, jruffini@uwm.edu