GSA 2020 Connects Online

Session No. 11
Monday, 26 October 2020: 1:30 PM-5:30 PM

T59. “Curse Your Sudden but Inevitable Betrayal": Advances and Challenges in Terrestrial Paleoclimate

GSA Sedimentary Geology Division; GSA Soils and Soil Processes Division; GSA Continental Scientific Drilling Division; GSA Quaternary Geology and Geomorphology Division

 

David Colwyn, Robin R. Dawson and Gerard A. Otiniano, Advocates
Paper #
Start Time
1:30 PM
FLUSHING THE SYSTEM: COUPLING LITHIUM ISOTOPES AND CLIMATE MODEL OBSERVATIONS DURING THE PETM
RUSH, William D.1, KIEHL, Jeffrey1, VON STRANDMANN, Phillip Pogge2, SHIELDS, Christine3 and ZACHOS, James C.1, (1)Earth and Planetary Sciences, University of California Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, (2)University College London, London, United Kingdom, (3)CSEG, National Center for Atmospheric Research, 1850 Table Mesa Drive, Boulder, CO 80305
1:45 PM
SILICATE WEATHERING INTENSITY IN FLOODPLAINS ACROSS THE PALEOCENE-EOCENE THERMAL MAXIMUM INFLUENCED BY PALEO-LANDSCAPE POSITION
RAMOS, Evan J.1, BREECKER, Daniel O.1, BARNES, Jaime D.1, LI, Fangliang2, LOEWY, Staci L.1 and SATKOSKI, Aaron M.1, (1)Department of Geological Sciences, The University of Texas at Austin, Austin, TX 78712, (2)Department of Geological Sciences, The University of Texas at Austin, Austin, TX 78712; State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China
2:00 PM
SPATIAL VARIABILITY IN PALEOSOL-BASED PALEOCLIMATE PROXIES AND EOCENE PALEOCLIMATE IN WYOMING
DZOMBAK, Rebecca M., Dept. of Earth & Environmental Sciences, University of Michigan, 1100 N. University, Ann Arbor, MI 48109, STEIN, Rebekah, Earth and Environmental Sciences, University of Michigan, 2534 C.C. Little Building, 1100 N University Ave, Ann Arbor, MI 48109 and SHELDON, Nathan D., Earth and Environmental Sciences, University of Michigan, 1100 N University Ave, Ann Arbor, MI 48109
2:15 PM
PROSPECTS, PITFALLS, AND PRATFALLS OF HIGH LATITUDE PALEOENVIRONMENTAL RECONSTRUCTION FROM THE POST-ERUPTIVE SEDIMENTARY FILL OF KIMBERLITE PIPES IN NORTHERN CANADA (Invited Presentation)
REYES, Alberto V.1, ANDERSEN, Brielle1, BOLTON, Matthew S.M.1, BURYAK, Serhiy D.1, MADSEN, Fiona C.1, DAVIES, Joshua H.F.L.2, KOPPELHUS, Eva B.3, ROYER, Dana L.4, SIVER, Peter A.5 and TIERNEY, Jessica6, (1)Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G2E3, Canada, (2)Sciences de la Terre et de l'Atmosphère, Université du Québec à Montréal, 201 President-Kennedy Av, PO Box 8888, Montreal, QC H3C3P8, Canada, (3)Biological Sciences, University of Alberta, Edmonton, AB T6G2E3, Canada, (4)Earth and Environmental Sciences, Wesleyan University, 265 Church St., Middletown, CT 06459, (5)Botany Department, Connecticut College, New London, CT 06320, (6)Geosciences, University of Arizona, Tucson, AZ 85721
 
2:30 PM
Discussion
2:35 PM
A TWO-STEP APPROACH TO QUANTITATIVE TEMPERATURE ESTIMATES IN THE SIERRA NEVADA
WORTHAM, Barbara E.1, MUKHOPADHYAY, Sujoy1, MONTAÑEZ, Isabel P.2, MIDDLETON, Jennifer3 and TYRA, Alec D.4, (1)Earth and Planetary Sciences, University of California at Davis, One Shields Ave, Davis, CA 95616, (2)Earth and Planetary Sciences, University of California, Davis, One Shields Dr, Davis, CA 95616, (3)Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, (4)Sandra Day O’Connor College of Law, Arizona State University, 111 E. Taylor Street, Phoenix, AZ 85004
2:50 PM
FILLING THE NORTHERN INLAND GAP: POLLEN-INFERRED, HOLOCENE, PALEOCLIMATIC RECONSTRUCTIONS FROM VERMONT
GRIGG, Laurie D., Department of Earth and Environmental Sciences, Norwich University, 158 Harmon Dr., Northfield, VT 05663, STEFANESCU, Ioana, Geology of Geophysics, University of Wyoming, Laramie, WY 82071 and SHUMAN, Bryan N., Geology and Geophysics, University of Wyoming, 1000 E. University Ave, Dept. 3006, Laramie, WY 82071
3:05 PM
DEFINE INTERESTING: OH GOD WE’RE ALL GOING TO DIE? WILL THE YEAR 2100 BE MORE LIKE THE MID-CRETACEOUS OR MID-PLIOCENE GLOBAL WARMING AND WHY IT MATTERS?
CHANDLER, Mark A., SOHL, Linda E. and JONAS, Jeffrey A., Center for Climate Systems Research, Columbia University, NASA/GISS, 2880 Broadway, New York, NY 10025
 
3:20 PM
Break
3:30 PM
A NEW PROXY FOR REGIONAL PALEO‑ARIDITY USING CLUMPED AND TRIPLE OXYGEN ISOTOPES OF MODERN SOIL CARBONATES FROM THE SERENGETI ECOSYSTEM, TANZANIA (Invited Presentation)
BEVERLY, Emily J.1, LEVIN, Naomi E.2, PASSEY, Benjamin H.2, ARON, Phoebe2, PAGE, Mara2, YARIAN, Drake2 and PELLETIER, Elise2, (1)Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204; Earth and Atmospheric Sciences, University of Michigan, Houston, TX 77204, (2)Department of Earth & Environmental Sciences, University of Michigan, 1100 North University Avenue, Ann Arbor, MI 48109
3:45 PM
ADVANCING TERRESTRIAL PALEOCLIMATE WITH A PROCESS-BASED UNDERSTANDING OF THE SEASONAL BIAS OF THE CLUMPED AND STABLE ISOTOPIC COMPOSITIONS OF SOIL CARBONATES (Invited Presentation)
KELSON, Julia R.1, HUNTINGTON, Katharine W.2, BREECKER, Daniel O.3, BURGENER, Landon4, GALLAGHER, Timothy M.5, HOKE, Gregory D.6 and PETERSEN, Sierra V.1, (1)Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109, (2)Earth and Space Sciences, University of Washington, Seattle, WA 98195, (3)Department of Geological Sciences, The University of Texas at Austin, Austin, TX 78712, (4)Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, (5)Department of Geology, Kent State University, Kent, OH 44242, (6)Department of Earth Sciences*, Syracuse University, Syracuse, NY 13244
4:00 PM
EQUABLE OR NOT? INVESTIGATING THE INFLUENCE OF PROXY BIASES IN RECONSTRUCTIONS OF GREENHOUSE PERIOD TEMPERATURE SEASONALITY
BURGENER, Landon, Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, Raleigh, NC 27695, GRIFFITH, Emily, Department of Statistics, North Carolina State University, Raleigh, NC 27695 and HYLAND, Ethan G., Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University, 2800 Faucette Dr., Rm. 1125 Jordan Hall, NC State University, Raleigh, NC 27695
 
4:15 PM
Discussion 2
4:20 PM
DECADAL SUMMER LAKE WATER TEMPERATURE VARIABILITY IN SOUTHERN GREENLAND OF THE LAST 2 MILLENNIA: DEVELOPMENT AND APPLICATION OF A SITE-SPECIFIC BRGDGT CALIBRATION
ZHAO, Boyang1, CASTAÑEDA, Isla S.1, BRADLEY, Raymond S.1, SALACUP, Jeff1, DANIELS, William1, SCHNEIDER, Tobias1 and DE WET, Gregory A.2, (1)Department of Geosciences, University of Massachusetts Amherst, 611 North Pleasant Street, Amherst, MA 01003, (2)Department of Geosciences, Smith College, Northampton, MA 01063; Department of Geosciences, University of Massachusetts Amherst, 611 North Pleasant Street, Amherst, MA 01003
4:35 PM
ASSESSING THE EFFECTS OF SHADE ON SYCAMORE ECOPHYSIOLOGY: PRESENT AND PAST
MILLIGAN, Joseph N.1, BARCLAY, Richard S.2, DUNN, Regan E.3, FLYNN, Andrew G.1, KOUWENBERG, Lenny L.R.4, WAGNER, Jennifer D.5, WHITE, Joseph D.6, ZECHMANN, Bernd7 and PEPPE, Daniel J.1, (1)Terrestrial Paleoclimatology Research Group, Department of Geosciences, Baylor University, One Bear Place #97354, Waco, TX 76798, (2)Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, 10th & Constitution Avenue NW, Washington, DC 20560-0121, (3)La Brea Tar Pits and Museum, Natural History Museum of Los Angeles, 5801 Wilshire Blvd, Los Angeles, CA 90036, (4)Department of Geology, Field Museum of Natural History, 1400 South Lake Shore Drive, Chicago, IL 60605, (5)Department of Integrative Biology and Museum of Paleontology, University of California, Berkeley, 3060 Valley Life Sciences Building, Berkeley, CA 94720-3140, (6)Department of Biology, Baylor University, One Bear Place #97388, Waco, TX 76798, (7)Center for Microscopy and Imaging, Baylor University, One Bear Place #97046, Waco, TX 76798
4:50 PM
MULTIPLE PROXIES TO DESCRIBE AND CONSTRAIN REGIONAL CONDITIONS OF THE NORTH AMERICAN CONTINENTAL INTERIOR AS RESPONSE TO THE EARLY EOCENE CLIMATIC OPTIMUM
STEIN, Rebekah1, SHELDON, Nathan D.1, DZOMBAK, Rebecca M.1, SMITH, M. Elliot2 and ALLEN, Sarah E.3, (1)Earth and Environmental Sciences, University of Michigan, 2534 CC Little Building, Ann Arbor, MI 48109, (2)School of Earth and Sustainability, Northern Arizona University, 625 Knoles Drive, Box 4099, Flagstaff, AZ 86011, (3)Department of Biology, Penn State Altoona, 3000 Ivyside Park, Altoona, PA 16601
5:00 PM
TEMPERATURE VARIABILITY IN CONTINENTAL NORTHWEST AUSTRALIA DURING THE PLIO-PLEISTOCENE (3.5 TO 1.5 MA): THE BRGDGT RECORD FROM IODP SITE U1463
SMITH, Rebecca A., Department of Geosciences, University of Massachusetts Amherst, Morrill Science Center, Amherst, MA 01003 and CASTAÑEDA, Isla S., Department of Geosciences, Climate System Research Center, University of Massachusetts, 627 Morrill Science Center II, Amherst, MA 01002
5:10 PM
BRANCHED GDGT DISTRIBUTIONS IN MAINE LAKES AND WATERSHED SOILS: DISENTANGLING LACUSTRINE AND SOIL INPUTS TO THE SEDIMENTARY RECORD
CASTAÑEDA, Isla S., Dept of Geosciences, University of Massachusetts Amherst, 627 N. Pleasant St, Morrill Science Center II, Amherst, MA 01003 and ARIYARATHNA, Thivanka, Marine Sciences, UConn, 1080 Shennecossett Rd, Groton, CT 06340
5:20 PM
CLIMATIC FLUCTUATIONS USING OXYGEN AND CARBON ISOTOPES FROM LACUSTRINE CARBONATES FROM LAKE CHALCO, MEXICO
HOLMES, Aria, Department of Earth and Planetary Sciences, University of New Mexico, MSC 03 2040, 1 University of New Mexico, Albuquerque, NM 87131, FAWCETT, Peter J., Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131 and SHARP, Zachary D., Earth and Planetary Sciences, University of New Mexico, Northrop Hall, 221 Yale Blvd NE, Albuquerque, NM 87131
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