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| 42-1 | 1:30 PM | ASKING OLD ROCKS NEW QUESTIONS: CHRONOSTRATIGRAPHIC SIGNIFICANCE OF CARBON ISOTOPES TO PALEOZOIC STRATIGRAPHY: CRAMER, Bradley D.1, SALTZMAN, Matthew R.1, KLEFFNER, Mark A.2, BERGSTRÖM, Stig1, and YOUNG, Seth A.1, (1) Department of Geological Sciences, The Ohio State University, 125 S. Oval Mall, Columbus, OH 43210, cramer.70@osu.edu, (2) Department of Geological Sciences, The Ohio State University at Lima, 4240 Campus Drive, Lima, OH 45804 |
| 42-2 | 1:45 PM | THE ORDOVICIAN RADIATION: A MACROEVOLUTIONARY CROSSROADS: MILLER, Arnold I., BULINSKI, Katherine V., BUICK, Devin P., FERGUSON, Chad A., and HENDY, Austin J.W., Department of Geology, Univ of Cincinnati, 500 Geology Physics, Cincinnati, OH 45221-0013, arnold.Miller@uc.edu |
| 42-3 | 2:05 PM | PROSPECTS AND OPPORTUNITIES FOR STUDYING RATES OF EVOLUTION: ERWIN, Douglas H., Dept of Paleobiology MRC-121, Smithsonian Institution, PO Box 37012, Washington D.C, DC 20013-7012, erwind@si.edu |
| 42-4 | 2:20 PM | EDIACARANS ON THE EDGE: ENVIRONMENTAL CONTROLS ON DIVERSITY: GEHLING, James G., Natural Science, South Australian Museum, North Terrace, South Australia, Adelaide, 5000, Australia, gehling.jim@saugov.sa.gov.au and DROSER, Mary L., Department of Earth Sciences, Univ of California, Riverside, CA 92521 |
| 42-5 | 2:35 PM | HOW CAN WE MAKE EVOLUTIONARY SENSE OF THE EDIACARA BIOTA?: BRASIER, Martin D. and ANTCLIFFE, Jonathan B., Earth Sciences, Oxford University, Parks Road, Oxford, OX1 3PR, United Kingdom, martinb@earth.ox.ac.uk |
| 42-6 | 2:50 PM | CONSTRAINTS ON THE TIMING OF THE STURTIAN GLACIATION FROM SOUTHERN AUSTRALIA; IE FOR THE TRUE STURTIAN: FANNING, C. Mark, Research School of Earth Sciences, Australian National Univ, Canberra, ACT 0200, Australia, mark.fanning@anu.edu.au and LINK, Paul, Geosciences, Idaho State University, Campus Box 8072, Pocatello, ID 83209 |
| 42-7 | 3:05 PM | SYSTEMATIC ERRORS IN THE CONTEXT OF THE EARTHTIME INITIATIVE: HEIZLER, Matthew Thomas, New Mexico Bureau of Geology and Mineral Rscs, 801 Leroy Place, Socorro, NM 87801, matt@nmt.edu |
| 42-8 | 3:20 PM | MAGNETITE (U-TH)/HE DATING AND ITS APPLICATION TO BASALT GEOCHRONOLOGY: BLACKBURN, Terrence J., Department of Geology, Univ of Kansas, 120 Lindley Hall, 1475 Jayhawk Blvd, Lawrence, KS 66045, terrenceb@ku.edu, STOCKLI, Daniel F., Geology, University of Kansas, 1475 Jayhawk Boulevard 120 Lindley Hall, Lawrence, KS 66045-7613, and WALKER, J. Douglas, Department of Geology, Univ of Kansas, Lawrence, KS 66045 |
| 42-9 | 3:35 PM | A POSSIBLE STANDARD FOR BOTH U/PB AND AR/AR DATING: THE CARBONIFEROUS FIRE CLAY TONSTEIN: MACHLUS, Malka1, CROWLEY, James2, BOWRING, Samuel A.3, HEMMING, Sidney R.4, RASBURY, Troy5, SWISHER, Carl III6, and TURRIN, Brent D.6, (1) Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, NY 10964, machlus@ldeo.columbia.edu, (2) Dept. Earth, Atm. & Planet. Sci, Massachusetts Institute of Technology, Cambridge, MA 02139, (3) Massachusetts Institute Technology, 77 Mass.Ave, Cambridge, MA 02139, (4) Earth and Environmental Sciences, Columbia University, Lamont-Doherty Earth Observatory, 61 Rt. 9W, Palisades, NY 10974, (5) Stony Brook University, Stony Brook, NY 11794, (6) Geological Sciences, Rutgers University, Wright Labs, 610 Taylor Road, Piscataway, NJ 08854-8066 |
| 42-10 | 3:50 PM | AN ABSOLUTE TIME TABLE FOR THE LOWER TO MIDDLE PENNSYLVANIAN BREATHITT GROUP OF KENTUCKY: OUTERBRIDGE, William F., U.S. Geological Survey (Retired), 11969 Greywing Ct, Reston, VA 20191-1828, outerbridge@aol.com and LYONS, Paul C., U.S.Geological Survey (Retired), 206 Amber Road, Middleboro, MA, 02346 |
| 42-11 | 4:05 PM | BIOSTRATIGRAPHIC CONSTRAINTS ON UPPER PALEOZOIC TECTONIC EVENTS IN EDNA MOUNTAIN AND SURROUNDING AREAS, WESTERN NEVADA: DAVYDOV, Vladimir I.1, SNYDER, Walter S.1, CASHMAN, Patricia H.2, and TREXLER, James H. Jr2, (1) Department of Geosciences, Boise State Univ, 1910 University Drive, Boise, ID 83725, Vdavydov@boisestate.edu, (2) Department of Geological Sciences, Univ of Nevada, Reno, Mail Stop 172, Reno, NV 89557 |
| 42-12 | 4:20 PM | U-PB DATING OF AN EARLY CRETACEOUS CALCRETE, CEDAR MOUNTAIN FORMATION, UTAH: GULBRANSON, Erik L., Geology, University of California Davis, One Shields Avenue, Davis, CA 95616, elgulbranson@ucdavis.edu, RASBURY, E. Troy, Geosciences, SUNY Stony Brook, Stony Brook, NY 11794-2100, LANZIROTTI, Tony, Univ of Chicago, Bldg. 725, X26A, Brookhaven National Lab, Upton, NY 11973, and DEMKO, Timothy M., Department of Geological Sciences, University of Minnesota Duluth, Duluth, MN 55812 |
| 42-13 | 4:35 PM | A NEW HIGH-RESOLUTION NEOGENE CHRONOSTRATIGRAPHIC MODEL FOR THE SOUTHERN OCEAN: APPLICATION OF THE CONSTRAINED OPTIMIZATION METHOD TO DIATOM BIOSTRATIGRAPHY: CODY, Rosemary, LEVY, Richard, and HARWOOD, David M., Geosciences, University of Nebraska-Lincoln, Lincoln, NE 68588, rockyrose@gmail.com |
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