2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

JONES, Matthew M., Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Road, Technological Institute, Rm. F374, Evanston, IL 60202 and SAGEMAN, Bradley B., Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, mjones@earth.northwestern.edu

TESSIN, Allyson¹, HENDY, Ingrid¹, SHELDON, Nathan D.², SCHRODER-ADAMS, Claudia³ and ELDERBAK, Khalifa⁴, (1)Department of Earth and Environmental Sciences, University of Michigan, 2534 C.C. Little Bldg, 1100 N. University Ave, Ann Arbor, MI 48109, (2)Earth and Environmental Sciences, University of Michigan, 2534 CC Little Building, Ann Arbor, MI 48109, (3)Department of Earth Sciences, Carleton University, Ottawa, ON K1S 5B6, Canada, (4)ALS Ellington, Houston, TX 77043, atessin@umich.edu

PETERSEN, Sierra V¹, TABOR, Clay R.¹, CARPENTER, Scott J.², MEYER, Kyle W.¹, LOHMANN, Kyger C.¹ and POULSEN, Christopher J.¹, (1)Department of Earth and Environmental Sciences, University of Michigan, 2534 C.C. Little Building, 1100 N. University Ave, Ann Arbor, MI 48109, (2)60 Spring Valley Drive, Iowa City, IA 52240, sierravp@umich.edu

LOWERY, Christopher M., Institute for Geophysics, University of Texas, JJ Pickle Research Campus, Bldg 196, 10100 Burnet Rd, Austin, TX 78758 and LECKIE, R. Mark, University of Massachusetts Amherst, Department of Geosciences UMass, 611 N. Pleasant St, Amherst, MA 01003, chris.lowery09@gmail.com

LECKIE, R. Mark¹, ELDERBAK, Khalifa², LOWERY, Christopher M.³ and PARKER, Amanda L.¹, (1)University of Massachusetts Amherst, Department of Geosciences UMass, 611 N. Pleasant St, Amherst, MA 01003, (2)ALS Ellington, Houston, TX 77043, (3)Institute for Geophysics, University of Texas, JJ Pickle Research Campus, Bldg 196, 10100 Burnet Rd, Austin, TX 78758, mleckie@geo.umass.edu

FRICKE, Henry, Department of Geology, Colorado College, 14 East Cache La Poudre St, Colorado Springs, CO 80903, MONTELLANO BALLESTEROS, Marisol, Instituto de Geología, Universidad Nacional Autónoma de México, Circuito de la Investigación S/N, Ciudad Universitaria, Distrito Federal, 04510, Mexico, WILSON, Gregory P., Department of Biology, University of Washington, 24 Kincaid Hall, Box 351800, Seattle, WA 98195-1800, SEWALL, Jacob O., Department of Physical Sciences, Kutztown University of Pennsylvania, P.O. Box 730, Kutztown, PA 19530, SERTICH, Joseph, Denver Museum of Nature & Science, 2001 Colorado Blvd, Denver, CO 80205 and FASTOVSKY, David E., Department of Geosciences, Univ of Rhode Island, 9 East Alumni Ave, Kingston, RI 02881, hfricke@ColoradoCollege.edu

BHATTACHARYA, Janok P., School of Geography and Earth Sciences, McMaster University, 1280 Main St. West, Hamilton, ON L8S 4L8, Canada, bhattaj@mcmaster.ca

SINGER, Brad S., Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53076, MEYERS, Stephen R., Department of Geoscience, University of Wisconsin, 1215 West Dayton St, Madison, WI 53076, SAGEMAN, Bradley B., Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, JICHA, Brian R., Department of Geoscience, University of Wisconsin, 1215 W. Dayton St., Madison, WI 53706 and CONDON, Daniel, NERC Isotope Geoscience Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, bsinger@geology.wisc.edu

WANG, Chengshan, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 29 Xueyuan Road, Haidian District, China University of Geosciences, Beijing, 100083, China; School of Earth Sciences and Resources, China University of Geosciences, Beijing, 29 Xueyuan Road, Haidian District, China University of Geosciences, Beijing, 100083, China, GRAHAM, Stephan A., Department of Geological Sciences, Stanford University, 450 Serra Mall, Bldg. 320, Stanford, CA 94305-2115, WAN, Xiaoqiao, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (Beijing), Beijing, 100083, China, CHAMBERLAIN, C. Page, Earth System Science, Stanford University, 473 Via Ortega, Rm 140, Stanford, CA 94305, WANG, Pujun, College of Earth Sciences, Jilin University, Changchun, 130061, China, HUANG, Yongjian, Department of Earth Sciences, China University of Geosciences, Beijing, Beijing, 100083, China, WU, Huaichun, School of Ocean Sciences, China University of Geosciences, Beijing, Beijing, 100083, China and GAO, Yuan, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, Beijing, 100083, China, chshwang@cugb.edu.cn

WANG, Tiantian, School of Earth Sciences and Resources, China University of Geosciences, Beijing, 29 Xueyuan Road, Haidian District, China University of Geosciences, Beijing, 100083, China, RAMEZANI, Jahandar, Dept. of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave., Bldg. 54-1126, Cambridge, MA 02139 and WANG, Chengshan, State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 29 Xueyuan Road, Haidian District, China University of Geosciences, Beijing, 100083, China, tianwang@mit.edu

CHAMBERLAIN, C. Page¹, IBARRA, Daniel E.¹, CAVES, Jeremy K.², GAO, Yuan³, GRAHAM, Stephan A.⁴ and WANG, Chengshan⁵, (1)Earth System Science, Stanford University, 473 Via Ortega, Rm 140, Stanford, CA 94305, (2)Earth System Science, Stanford University, 473 Via Ortega, Rm. 140, Stanford, CA 94305, (3)State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, Beijing, 100083, China, (4)Department of Geological Sciences, Stanford University, 450 Serra Mall, Bldg. 320, Stanford, CA 94305-2115, (5)State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 29 Xueyuan Road, Haidian District, China University of Geosciences, Beijing, 100083, China, chamb@stanford.edu

IBARRA, Daniel E.¹, JONES, Matthew M.², GRAHAM, Stephan A.³, SAGEMAN, Bradley B.⁴ and CHAMBERLAIN, C. Page¹, (1)Earth System Science, Stanford University, 473 Via Ortega, Rm 140, Stanford, CA 94305, (2)Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Road, Technological Institute, Rm. F374, Evanston, IL 60202, (3)Department of Geological Sciences, Stanford University, 450 Serra Mall, Bldg. 320, Stanford, CA 94305-2115, (4)Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, danieli@stanford.edu

GAO, Yuan¹, IBARRA, Daniel E.², CAVES, Jeremy K.³, WANG, Chengshan⁴, CHAMBERLAIN, C. Page², GRAHAM, Stephan A.⁵, DU, Xiaojing⁶ and WU, Huaichun⁷, (1)State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, Beijing, 100083, China; School of the Earth Science and Resources, China University of Geosciences, Beijing, Beijing, 100083, China, (2)Earth System Science, Stanford University, 473 Via Ortega, Rm 140, Stanford, CA 94305, (3)Earth System Science, Stanford University, 473 Via Ortega, Rm. 140, Stanford, CA 94305, (4)State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing, 29 Xueyuan Road, Haidian District, China University of Geosciences, Beijing, 100083, China; School of Earth Sciences and Resources, China University of Geosciences, Beijing, 29 Xueyuan Road, Haidian District, China University of Geosciences, Beijing, 100083, China, (5)Department of Geological Sciences, Stanford University, 450 Serra Mall, Bldg. 320, Stanford, CA 94305-2115, (6)School of the Earth Science and Resources, China University of Geosciences, Beijing, Beijing, 100083, China, (7)School of Ocean Sciences, China University of Geosciences, Beijing, Beijing, 100083, China, gaoyuan1801@126.com

SUAREZ, Marina B., Geological Sciences, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78259, SUAREZ, Celina, Geosciences, University of Arkansas, 216 Ozark Hall, Fayetteville, AR 72701, YOU, Hailu, Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology,Chinese Academy of Sciences, 142 Xizhimenwai Street, Beijing, 100044, China and KIRKLAND, James I., Utah Geological Survey, 1594 West North Temple, Suite 3110, P.O. Box 146100, Salt Lake City, UT 84114-6100, marina.suarez@utsa.edu

LUDVIGSON, Greg A., Kansas Geological Survey, University of Kansas, 1930 Constant Ave, Lawrence, KS 66047-3726, GONZALEZ, Luis A., Department of Geology, University of Kansas, 1475 Jayhawk Blvd., Rm. 120, Lindley Hall, Lawrence, KS 66045, JOECKEL, R.M., Conservation and Survey Division, School of Natural Resources and Department of Earth and Atmospheric Sciences, University of Nebraska-Lincoln, Hardin Hall, 3310 Holdrege St, Lincoln, NE 68583-0996 and MÖLLER, Andreas, Department of Geology, The University of Kansas, 1475 Jayhawk Blvd., Lindley Hall, Lawrence, KS 66045, gludvigson@kgs.ku.edu

JAGOUTZ, Oliver, Earth, Atmospheric and Planetary Sciences Department, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, MACDONALD, Francis A., Department of Earth and Planetary Sciences, Harvard University, 2, Cambridge, MA 02138 and ROYDEN, Leigh H., Dept. of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, jagoutz@mit.edu