HAYNES, Laura L., Geology, Pomona College, 185 East Sixth Street, Claremont, CA 91711, lh2658@columbia.edu and GAINES, Robert R., Geology Department, Pomona College, 185 E. Sixth Street, Claremont, CA 91711

OVIATT, Charles G., Department of Geology, Kansas State University, Manhattan, KS 66506, joviatt@ksu.edu

MCGEE, David¹, STEPONAITIS, Elena², QUADE, Jay³, ANDREWS, Alexandra L.⁴, EDWARDS, R. Lawrence⁵, HSIEH, Yu-Te⁶, BROECKER, Wallace⁷, and CHENG, Hai⁵, (1) Earth, Atmospheric and Planetary Sciences, MIT, 45 Carleton St, E25-625, Cambridge, MA 02142, davidmcg@mit.edu, (2) Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA 02142, (3) Department of Geosciences, University of Arizona, Tucson, AZ 85721, (4) Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institue of Technology, Cambridge, MA 02139, (5) Department of Earth Sciences, University of Minnesota, 310 Pillsbury Dr. SE, Minneapolis, MN 55455, (6) Earth Sciences, Oxford University, Oxford, OX1 3AN, United Kingdom, (7) Columbia University, Lamont-Doherty Earth Observatory, New York, NY 10027

JANECKE, Susanne U.¹, OAKS, Robert Q. Jr¹, KNIGHT, A.J.¹, NUTT, Dallas¹, and RITTENOUR, Tammy M.², (1) Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322-4505, susanne.janecke@usu.edu, (2) Dept. of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322

MILLER, David M., U.S. Geological Survey, 345 Middlefield Road MS 973, Menlo Park, CA 94025, dmiller@usgs.gov, REHEIS, Marith C., United States Geological Survey, Denver Federal Center, MS-980, Denver, CO 80225, and DUDASH, Stephanie L., Mountain GIS and Geological Services, 2849 Foxtail Drive, Montrose, CO 81401

ALI, Guleed AH, Department of Earth and Environmental Sciences, Columbia University, New York, NY 10027, ga2285@columbia.edu, ZIMMERMAN, Susan H., Center for Accelerator Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94550, WANG, Xianfeng, Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, HEMMING, Sidney R., Department of Earth and Environmental Sciences and Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, and STINE, Scott, California State University, Hayward, CA 94542

PUTNAM, Aaron E., Lamont-Doherty Earth Observatory, Columbia University, 217 Comer, 61 Route 9W - PO Box 1000, Palisades, NY 10964, aputnam@ldeo.columbia.edu, BIRKEL, Sean, Department of Earth Sciences, University of Maine, 5790 Bryand Global Sciences Center, Orono, ME 04469-5790, SCHAEFER, Joerg M., Department of Earth and Environmental Sciences and Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964, DENTON, George H., Earth Sciences & Climate Change Institute, University of Maine, Bryand Global Sciences Center, Orono, ME 04469, BROECKER, Wallace, Columbia University, Lamont-Doherty Earth Observatory, New York, NY 10027, PUTNAM, David E., Environmental Studies, University of Maine at Presque Isle, 181 Main Street, Presque Isle, ME 04769, EVENSON, Edward B., Earth and Environmental Sciences, Lehigh University, 1 West Packer Ave, Bethlehem, PA 18015, FINKEL, Robert C., Department of Earth and Planetary Science, University of California, Berkeley, 371 McCone Hall, Berkeley, CA 94720, ROOD, Dylan H., AMS Laboratory, Scottish Universities Environmental Research Centre (SUERC), East Kilbride, G75 0QF, United Kingdom, and SCHWARTZ, Roseanne, Geochemistry, LDEO, Columbia University, Palisades, NY 10964

OSTER, Jessica L., Earth and Environmental Science Department, Vanderbilt University, Nashville, TN 37240, jessica.l.oster@vanderbilt.edu, SANTARE, Laura, Geology, University of California, Davis, CA 95616, MONTANEZ, Isabel P., Department of Geology, University of California, Davis, One Shields Avenue, Davis, CA 95616, SHARP, Warren D., Berkeley Geochronology Center, Berkeley, CA 94709, and COOPER, Kari M., Geology, UC Davis, 1 Shields Ave, Davis, CA 95616

ADAMS, Kenneth D., Division of Earth and Ecosystem Sciences, Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, kadams@dri.edu

IBARRA, Daniel E.¹, EGGER, Anne E.², WEAVER, Karrie L.¹, HARRIS, Caroline R.¹, and MAHER, Kate¹, (1) Dept. of Geological and Environmental Sciences, Stanford University, 450 Serra Mall, Building 320, Stanford, CA 94305-2115, danieli@stanford.edu, (2) Dept. of Geological Sciences, Central Washington University, 400 E. University Way, Ellensburg, WA 98926-7418

HUDSON, Adam¹, QUADE, Jay², BASSETT, Scott³, and BOYLE, Douglas P.³, (1) Geosciences, University of Arizona, 1040 E 4th St, Room 208, Tucson, AZ 85721, amhudson@email.arizona.edu, (2) Geosciences, University of Arizona, Tucson, AZ 85721, (3) Department of Geography, University of Nevada-Reno, Reno, NV 89557