GSA Connects 2021 in Portland, Oregon

Session No. 38
Sunday, 10 October 2021: 1:30 PM-5:30 PM
E141/E142 (Hybrid Room) (Oregon Convention Center)

T31. Assessing Causes, Consequences, and Time Scales of Miocene Climate and Environmental Change

GSA Geochronology Division; Paleontological Society

 

Jennifer Kasbohm and Alex Lowe, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1:35 PM
TESTING THE MONTEREY HYPOTHESIS: A NEW AGE AND STRATIGRAPHIC MODEL FOR THE MIOCENE MONTEREY FORMATION ALONG THE CENTRAL COAST OF CALIFORNIA
ANTTILA, Eliel and MACDONALD, Francis, Department of Earth Science, University of California Santa Barbara, 1006 Webb Hall, Santa Barbara, CA 93117
1:50 PM
SENSITIVITY OF SOUTH AMERICAN PRECIPITATION TO MIOCENE CO2 VARIATIONS AND EASTERN ANTARCTIC GLACIATION
FENG, Ran, Department of Geosciences, University of Connecticut, Storrs, CT 06269 and LOUGHNEY, Katharine M., Department of Geology, University of Georgia, Athens, GA 30602
2:05 PM
LATE MIOCENE EXPANSION OF GRASSLANDS IN NW ARGENTINA LINKED TO SHIFTING HYDROCLIMATE
AZMI, Iffat1, HYLAND, Ethan1, COTTON, Jennifer2, GHOSH, Adit3, RAIGEMBORN, Maria Sol4, TINEO, David4 and INSEL, Nadja5, (1)Dept. of Marine, Earth & Atmospheric Sciences, North Carolina State University, 2800 Faucette Dr., Raleigh, NC 27695, (2)Geological Sciences, California State University, Northridge, 18111 Nordhoff St, Northridge, CA 91330, (3)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, (4)Centro de Investigaciones Geologicas, Universidad Nacional de La Plata, La Plata, C1925, Argentina, (5)Department of Earth Sciences, Northeastern Illinois University, Chicago, IL 60625
2:20 PM
USING GEOCHRONOLOGY AND ISOTOPE ECOLOGY TO RECONSTRUCT PAST CLIMATES: A CASE STUDY FROM THE MIOCENE SANTA CRUZ FORMATION, ARGENTINA (Invited Presentation)
TRAYLER, Robin1, BARGO, M. Susana2, CUITIÑO, José3, KAY, Richard4, KOHN, Matthew J.5, SCHMITZ, Mark D.6, STROMBERG, Caroline A.E.7 and VIZCAÍNO, Sergio2, (1)Life and Environmental Sciences, University of California Merced, Merced, CA 95343, (2)División Paleontología de Vertebrados, Museo de La Plata, Unidades de Investigación, (CIC and CONICET), La Plata, Argentina, (3)Instituto Patagónico de Geología y Paleontología, CENPAT‐ CONICET, Puerto Madryn, Argentina, (4)Department of Evolutionary Anthropology, Duke University, Durham, NC 27708, (5)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, (6)Department of Geosciences, Boise State University, Boise, ID 83725, (7)Department of Biology, University of Washington, 253 LSB, Box 351800, Seattle, WA 98195-1800
 
2:35 PM
Discussion
2:45 PM
INTEGRATED CALCAREOUS PLANKTON EVOLUTION IN THE MIOCENE (Invited Presentation)
RAFFI, Isabella, PhD h c, Department of Engineering and Geology, Universita' "G. d'Annunzio" di Chieti-Pescara, Campus Universitario - via dei Vestini 31, Chieti Scalo, 66013, Italy and WADE, Bridget, Department of Earth Sciences, University College London, Gower Street, London, WC1E 6BT, United Kingdom
3:00 PM
THE ROLE OF PCO2 IN ORBITALLY-PACED CLIMATE AND CARBON CYCLE VARIATIONS IN THE MIDDLE MIOCENE
PENMAN, Donald, Department of Geosciences, Utah State University, Logan, UT 84341, KIRTLAND TURNER, Sandra, Department of Earth Sciences, University of California, Riverside, 900 University Ave., Riverside, CA 92521, RIDGWELL, Andy, Department of Earth and Planetary Sciences, University of California, Riverside, 900 University Ave., Riverside, CA 92521, SCHER, Howie D., School of the Earth, Ocean and Environment, University of South Carolina, Columbia, SC 29208 and HULL, Pincelli M., Department of Earth and Planetary Sciences, Yale University, 210 Whitney Ave, New Haven, CT 06511
3:15 PM
REVISING AGE MODELS FOR MIOCENE DEEP-SEA SEDIMENTS WITH U-PB ZIRCON GEOCHRONOLOGY
KASBOHM, Jennifer, Department of Earth and Planetary Sciences, Yale University, 210 Whitney Ave, New Haven, CT 06511; Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544, SCHOENE, Blair, Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544, MONTANARI, Alessandro, Osservatorio Geologico di Coldigioco, Cda. Coldigioco 4, Apiro, 60121, Italy, COCCIONI, Roldolfo, Universita' degli Studi di Urbino "Carlo Bo", Urbino, 61029, Italy and HULL, Pincelli M., Department of Earth and Planetary Sciences, Yale University, 210 Whitney Ave, New Haven, CT 06511
3:30 PM
CONSTRAINING TIMESCALES OF MAGMATIC PROCESSES IN THE COLUMBIA RIVER FLOOD BASALT PROVINCE
HLINKA, Lisa, Earth and Atmospheric Science, City College of New York, New York, NY 10031; School of Earth and Environmental Sciences, Queens College, City University of New York, Flushing, NY 11367; Earth and Environmental Sciences, The Graduate Center, City University of New York, New York, NY 10016, BLACK, Benjamin A., Earth and Atmospheric Science, City College of New York, New York, NY 10031; Earth and Environmental Sciences, The Graduate Center, City University of New York, New York, NY 10016, LONGPRÉ, Marc-Antoine, School of Earth and Environmental Sciences, Queens College, City University of New York, Flushing, NY 11367; Earth and Environmental Sciences, The Graduate Center, City University of New York, New York, NY 10016 and SCHOENE, Blair, Department of Geosciences, Princeton University, Princeton, NJ 08544
3:45 PM
PLANT COMMUNITY AND CLIMATIC RESPONSE TO MID-MIOCENE ENVIRONMENTAL CHANGE IN THE PACIFIC NORTHWEST (USA) WITHIN A REFINED TEMPORAL FRAMEWORK
LOWE, Alex1, STROMBERG, Caroline A.E.2, SCHMITZ, Mark D.3, DILLHOFF, Richard4, DILLHOFF, Thomas4 and REMBER, William5, (1)Department of Biology, University of Washington, 24 Kincaid Hall, Seattle, WA 98105, (2)Department of Biology, University of Washington, 253 LSB, Box 351800, Seattle, WA 98195-1800, (3)Department of Geosciences, Boise State University, Boise, ID 83725, (4)Evolving Earth Foundation, Issaquah, WA 98027, (5)Department of Geological Sciences, University of Idaho, Moscow, ID 83844
 
4:00 PM
Discussion
4:15 PM
RETURN TO A GREENER DAY: MIOCENE PLANT FOSSILS AND PRIMARY PRODUCTIVITY IN A HIGH CO2 WORLD (Invited Presentation)
REICHGELT, Tammo, Department of Geosciences, University of Connecticut, Beach Hall, 354 Mansfield Rd #207, Storrs, CT 06269-0001, D'ANDREA, William, Biology and Paleo Environment, Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9W, Palisades, NY 10964 and WEST, Christopher K., Earth & Atmospheric Sciences, University of Alberta, Edmonton, AB AB T6G 2E3, Canada
4:30 PM
CELL-SEARCHING: DID HABITAT OPENNESS PARALLEL GRASS DOMINANCE IN THE CENOZOIC ASSEMBLY OF GREAT PLAINS GRASSLANDS?
ARRENDALE, Alexander1, NGUYEN, Minh2, ERTSGAARD, Erik1, NG, Ellen2, BRIGHTLY, William3, DUNN, Regan4 and STROMBERG, Caroline A.E.3, (1)Department of Biology, University of Washington, Seattle, WA 98195, (2)Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, (3)Department of Biology, University of Washington, Life Sciences Building (LSB), Box 351800, Seattle, WA 98195-1800, (4)Laboratories of Molecular Anthropology & Microbiome Research, University of Oklahoma, 101 David Boren Blvd, Norman, OK 73019
4:45 PM
EARLY MIOCENE EVIDENCE FOR C4 BIOMASS IN KENYA AND UGANDA
PEPPE, Daniel1, COTE, Susanne2, DEINO, Alan L.3, FOX, David L.4, KINGSTON, John D.5, KINYANJUI, Rahab N.6, LUKENS, William E.7, MACLATCHY, Laura M.8, NOVELLO, Alice9, STROMBERG, Caroline10, DRIESE, Steven11, GARRETT, Nicole12, HILLIS, Kayla R.13, JACOBS, Bonnie F.14, JENKINS, Kirsten E.15, KITYO, Robert16, LEHMANN, Thomas17, MANTHI, Fredrick K.6, MBUA, Emma N.6, MICHEL, Lauren13, MILLER, Ellen18, MUGUME, Amon19, NENGO, Isaiah20, OGINGA, Kennedy Ogonda21, PHELPS, Samuel R.22, ROSSIE, James B.23, STEVENS, Nacny J.24, UNO, Kevin25 and MCNULTY, Kieran P.26, (1)Department of Geosciences, Baylor University, One Bear Place #97354, Waco, TX 76798-7354, (2)Department of Anthropology and Archaeology, University of Calgary, Calgary, AB 2N 1N4, Canada, (3)Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, (4)Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455, (5)Department of Anthropology, University of Michigan, 101 West Hall, 1085 S. University Ave, Ann Arbor, MI 48109-1107, (6)Earth Sciences, National Museums of Kenya, P.O Box 40658-00100, Nairobi, 254, Kenya, (7)Department of Geology and Environmental Science, James Madison University, Harrisonburg, VA 22807-1004, (8)Department of Anthropology, University of Michigan, Ann Arbor, MI 48109, (9)Aix-Marseille Université, Jardin du Pharo, 58 Boulevard Charles Livon, Marseille, 13007, France; Department of Biology, University of Washington, Life Sciences Building (LSB), Box 351800, Seattle, WA 98195-1800, (10)Department of Biology, Burke Museum of Natural History and Culture, University of Washington, Box 351800, Seattle, WA 98195, (11)Department of Geosciences, Baylor University, Waco, TX 76798, (12)National Marrow Donor Program, 500 North 5th St., Minneapolis, MN 55401; Department of Geology and Geophysics, University of Minnesota, 310 Pillsbury Drive SE, Minneapolis, MN 55455-0219, (13)Department of Earth Sciences, Tennessee Tech University, Box 5062, Cookeville, TN 38505, (14)Huffington Dept. Earth Sciences, Southern Methodist University, PO Box 750395, Dallas, TX 75275, (15)Department of Social Sciences, Tacoma Community College, 6501 S 19th Street, Tacoma, WA 98466, (16)Department of Biological Sciences, Makerere University, P.O Box 7062, Kampala, 8HP8+99, Uganda, (17)Messel Research and Mammalogy Department, Senckenberg Research Institute and Natural History Museum Frankfurt, Senckenberganlage 25, Frankfurt, 60325, Germany, (18)Department of Anthropology, Wake Forest University, Winston-Salem, NC 27106, (19)Department of Biological Sciences, Makerere University, P.O Box 7062, Kampala, 8HP8+99, Uganda; Department of Museums and Monuments, Uganda National Museum, Ministry of Tourism, Wildlife and Antiquities, Kira Rd, Kampala, 8HPJ+6W, Uganda, (20)Turkana Basin Institute, Stony Brook University, Stony Brook, NY 11794, (21)Terra Guidance, Englewood, CO 80110; Terrestrial Paleoclimatology Research Group, Department of Geosciences, Baylor University, One Bear Place, #97354, Waco, TX 76798, (22)Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, (23)Department of Anthropology, Stony Brook University, Stony Brook, NY 11794, (24)Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, OH 45701, (25)Biology and Paleo Environment, Lamont-Doherty Earth Observatory, 61 Route 9W, PO Box 1000, Palisades, NY 10964, (26)Department of Anthropology, University of Minnesota, 395 Hubert H. Humphrey Center, 301 19th Avenue South, Minneapolis, MN 55455
5:00 PM
STRATIGRAPHIC REVISION OF THE EARLY MIOCENE DEPOSITS ON RUSINGA ISLAND AND ITS EFFECT ON INTERPRETATIONS OF PALEOCLIMATE AND EVOLUTION
MICHEL, Lauren1, PEPPE, Daniel2, DEINO, Alan L.3, CHENG, Kimberly D.1, SUMMERS, Hunter J.1, VINEYARD, Heather B.1, LEHMANN, Thomas4, MUTETI, Samuel5 and MCNULTY, Kieran P.6, (1)Tennessee Tech UniversityDepartment of Earth Sciences, PO Box 5062, Cookeville, TN 38505-0001, (2)Department of Geosciences, Baylor University, One Bear Place #97354, Waco, TX 76798-7354, (3)Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, (4)Messel Research and Mammalogy Department, Senckenberg Research Institute and Natural History Museum Frankfurt, Senckenberganlage 25, Frankfurt, 60325, Germany, (5)Department of Earth Sciences, National Museums of Kenya, P.O. Box 40658, Nairobi, Kenya, (6)Department of Anthropology, University of Minnesota, 395 Hubert H. Humphrey Center, 301 19th Avenue South, Minneapolis, MN 55455
5:15 PM
A WOODLAND-SAVANNA MOSAIC IN THE EARLY MIDDLE MIOCENE AT BULUK, TURKANA BASIN, KENYA
LUKENS, William, Department of Geology and Environmental Science, James Madison University, Harrisonburg, VA 22807-1004, PEPPE, Daniel, Baylor UniversityDepartment of Geosciences, 1 Bear Pl Unit 97354, Waco, TX 76798-7354, DEINO, Alan L., Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, FOX, David L., Department of Earth Sciences, University of Minnesota, Minneapolis, MN 55455, BEVERLY, Emily, Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77006-1563 and MILLER, Ellen, Department of Anthropology, Wake Forest University, Winston-Salem, NC 27106
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