Geological Society of America

8:00 AM

ESTIMATING MIOCENE TOPOGRAPHY OF THE DINARIC ALPS USING STABLE-ISOTOPE PALEOALTIMETRY

Gabriela Sanchez Ortiz, Colorado State University, Fort Collins, CO and Marlene Löberbauer, University of Graz, Graz and Nevena Andrić Tomašević, Karlsruhe Institute of Technology, Karslruhe and Oleg Mandic, Natural History Museum Vienna, Vienna and Davor Pavelić, University of Zagreb, Zagreb and Vedad Demir, Federal Institute for Geology - Sarajevo, Ilidža and Maud Meijers, University of Graz, Graz and Jeremy Rugenstein, Colorado State University, Fort Collins, CO

387862 (Theme Sessions)

8:00 AM

GREAT PLAINS OGALLALA FORMATION STABLE ISOTOPE EVIDENCE FOR THE POSITION OF THE 100TH MERIDIAN ARIDITY GRADIENT IN THE LATE NEOGENE

Livia Manser, ETH Zürich, St. Gallen and Tyler Kukla, Colorado State University, Fort Collins, CO and Tyler Kukla, University of Washington, Seattle, WA and Jeremy Rugenstein, Colorado State University, Fort Collins, CO

387971 (Theme Sessions)

8:00 AM

USING CARBON ISOTOPES TO CONSTRAIN C4 EXPANSION FROM BAHIA BLANCA TO MENDOZA IN RESPONSE TO CHANGES IN PRECIPITATION DURING THE LATE MIOCENE

Shelby Littleton, California State University, Northridge, Northridge, CA and Jennifer M. Cotton, California State University, Northridge, Northridge, CA and Ethan Hyland, North Carolina State University, Raleigh, NC and Iffat Azmi, North Carolina State University, Raleigh, NC and Maria Sol Raigemborn, CONICET and Universidad Nacional de La Plata, La Plata and David Tineo, CONICET and Universidad Nacional de La Plata, La Plata and Nadja Insel, Northeastern Illinois University, Chicago, IL

387972 (Theme Sessions)

8:00 AM

THE RISE OF C4 GRASSES IN SOUTH AMERICA: LINKING GRASSLAND TRANSITION TO THE SOUTH AMERICAN SUMMER MONSOON

Jennifer Cotton, California State University, Northridge, Northridge, CA and Adit Ghosh, University of Southern California, Los Angeles, CA and Ethan G. Hyland, North Carolina State University, Raleigh, NC and Scott Hauswirth, California State University, Northridge, Northridge, CA and Shelby Littleton, California State University, Northridge, Northridge, CA and Iffat Azmi, North Carolina State University, Raleigh, NC and Nadja Insel, Northeastern Illinois University, Chicago, IL and Maria Sol Raigemborn, CONICET and Universidad Nacional de La Plata, La Plata and David Tineo, CONICET and Universidad Nacional de La Plata, La Plata

387979 (Theme Sessions)

8:00 AM

EVALUATING A VARIABLE-RESOLUTION APPROACH FOR SIMULATING WATER ISOTOPES IN THE CONTINENTAL UNITED STATES USING VR-ICESM

Sophia Macarewich, National Center for Atmospheric Research, Boulder, CO and Adam Herrington, National Center for Atmospheric Research, Boulder, CO and Jiang Zhu, National Center for Atmospheric Research, Boulder, CO and Jesse Nusbaumer, National Center for Atmospheric Research, Boulder, CO and Bette Otto-Bliesner, National Center for Atmospheric Research, Boulder, CO and Esther Brady, National Center for Atmospheric Research, Boulder, CO

388017 (Theme Sessions)

8:00 AM

300 MILLION YEARS OF PEDOGENIC CARBONATES FROM WESTERN NORTH AMERICA: EVALUATING OXYGEN ISOTOPE RATIOS AS PROXIES FOR PALEOCLIMATE RECONSTRUCTIONS

Douglas Ekart, Salt Lake City, UT

388045 (Theme Sessions)

8:00 AM

SOUTHWEST CLIMATE AND ECOSYSTEM PRODUCTIVITY IN THE MIOCENE

Thu Bui, Colorado State University, Fort Collins, CO and Siânin Spaur, New Mexico Tech, Socorro, NM and Siânin Spaur, Colorado State University, Fort Colins, CO and Jeremy Rugenstein, Colorado State University, Fort Collins, CO and Daniel Koning, NM Bureau of Geology and Mineral Resources/New Mexico Tech, Socorro, NM

388049 (Theme Sessions)

15 Past and Present Stable Isotopes of the Western U.S. and Beyond (Posters)

Presentations