2007 GSA Denver Annual Meeting (28–31 October 2007)

VALLEY, Peter M., US Geological Survey, Box 628, Montpelier, VT 05602, HANCHAR, John M., Dept of Earth Sciences, Memorial University of Newfoundland, St John's, NF A1B 3X5, Canada and FEDO, Christopher M., Dept of Earth and Planetary Sciences, Knoxville, TN 37996, pvalley@usgs.gov, pvalley@usgs.gov

SAMAL, Abani, GEOLOGY/ Geostatistics, Pincock, Allen and Holt, 165 South Union Boulevard, Suite 950, Lakewood, CO 80228-2226 and FIFAREK, Richard, GEOLOGY Department, Southern Illinois University, Carbondale, IL 62901, arsamal@hotmail.com, arsamal@hotmail.com

SIMMONS, Stuart F., School of Geography, Geology and Environmental Science, University of Auckland, Private Bag 92019, Auckland Mail Centre, Auckland, 1142, New Zealand and BROWN, Kevin L., GEOKEM, P.O. Box 95-210, Swanson, Waitakere, 0653, New Zealand, sf.simmons@auckland.ac.nz, sf.simmons@auckland.ac.nz

REED, Mark, Geological Sciences, University of Oregon, Eugene, OR 97403 and PALANDRI, James, Geological Sciences, University of Oregon, Eugene, OR 97403-1272, mhreed@uoregon.edu, mhreed@uoregon.edu

MUEHLENBACHS, Karlis, Earth and Atmospheric Sciences, University of Alberta, 1-26 ESB, Edmonton, AB T6G 2E3, FURNES, Harald, Centre for Geobiology & Department of Earth Science, University of Bergen, Allegate 41, Bergen, 5007, Norway, DE WIT, Maarten, AEON-Africa Earth Observatory Network, and Department of, University of Cape Town, Rondebosch, 7700, South Africa, ROSING, Minik, Nordic Centre for Earth Evolution (NordCEE) & Geological Museum, University of Copenhagen, Copenhagen, 1350, Denmark and STAUDIGEL, Hubert, Scripps Insitution of Oceanography, Univ of California, UCSD-0225, La Jolla, CA 9209309 0225, karlis.muehlenbachs@ualberta.ca, karlis.muehlenbachs@ualberta.ca

BRENNAN, Sean T., Eastern Energy Resources Team, U.S. Geological Survey, MS 956, National Center, 12201 Sunrise Valley Drive, Reston, VA 20192, BURRUSS, Robert C., Eastern Energy Resources Team, U.S. Geological Survey, 12201 Sunrise Valley Drive, MS 956 National Center, Reston, VA 20192 and HUNT, Andrew G., Noble Gas Lab, U.S. Geological Survey, Denver Federal Center, BLD 21, MS 963, Denver, CO 80225, sbrennan@usgs.gov, sbrennan@usgs.gov

BARNES, David A.¹, PARRIS, Thomas M.², HARRISON III, William B.³ and GRAMMER, G. Michael¹, (1)Geosciences, Western Michigan University, 1903 West Michigan Ave, Kalamazoo, MI 49008, (2)Kentucky Geological Survey, 228 Mining and Mineral Resources Bldg, University of Kentucky, Lexington, KY 40506-0107, (3)Michigan Geological Survey, Western Michigan University, Kalamazoo, MI 49008, barnes@wmich.edu, barnes@wmich.edu

AGUE, Jay J., Geology and Geophysics, Yale Univ, P.O. Box 208109, New Haven, CT 06520-8109, jay.ague@yale.edu, jay.ague@yale.edu

LOWERS, Heather A., U.S. Geological Survey, MS 973, Denver, CO 80225, RUSK, Brian G., P.O. Box 25046 MS 963, US Geological Survey, Denver, CO 80225 and KOENIG, Alan E., USGS, Denver Federal Center, MS 973, Denver, CO 80225, hlowers@usgs.gov, hlowers@usgs.gov

PETTKE, Thomas, Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, Bern, CH-3012, Switzerland, SCAMBELLURI, Marco, Dipartimento per lo Studio del Territorio e delle sue Risorse, DIPTERIS, University of Genova, C.so Europa 26, Genova, 16132, Italy and VAN ROERMUND, Herman, Institute of Earth Sciences, Utrecht University, Budapestlaan 4, Utrecht, 3508 TA, Netherlands, pettke@geo.unibe.ch, pettke@geo.unibe.ch

RUSK, Brian G.¹, HOFSTRA, Albert H.², EMSBO, Poul², HUNT, Andrew G.¹, LANDIS, Gary P.¹ and RYE, Robert O.³, (1)US Geological Survey, Denver Federal Center MS 963, Denver, CO 80225, (2)US Geological Survey, Denver Federal Center MS 973, Denver, CO 80225, (3)USGS, Box 25046, MS 963, Denver, CO 80225, bgrusk@usgs.gov, bgrusk@usgs.gov