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Session Proposal: Miocene climate dynamics: from poles to tropics and land to sea (AGU25)

PP018
Miocene climate dynamics: from poles to tropics and land to sea

Session ID#: 255219

Session Description:
Miocene climate archives represent an opportunity to gain insight into processes that influence and are affected by climate change and to provide plausible analogs for future warming. During the Miocene, the Earth system experienced dynamic changes: continents' positions resembled those of present-day, but topography changed, sea levels fluctuated, ice sheets were dynamic, CO2 levels varied, and flora and fauna evolved into taxa that exist today. Our understanding of processes driving these changes are still developing. This session explores the processes, forcings, and feedbacks operating within the Earth system during the Miocene, Oligocene-Miocene transition, and Miocene-Pliocene transition. We seek submissions across a board range of topics, including but not limited to marine and terrestrial climate records, carbon cycle dynamics, cryosphere dynamics, atmosphere and ocean circulation, evolution of biota and ecosystems, and changes in paleogeography and topography. We welcome contributions based on proxy records, numerical models, or other innovative approaches.
Co-Sponsor(s):
  • B - Biogeosciences
  • C - Cryosphere
  • GC - Global Environmental Change
  • OS - Ocean Sciences
Index Terms:

0726 Ice sheets [CRYOSPHERE]
1620 Climate dynamics [GLOBAL CHANGE]
4255 Numerical modeling [OCEANOGRAPHY: GENERAL]
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]
Primary Convener:  Dr. Xiaoqing Liu, Purdue University, Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States
Conveners:  Anta-Clarisse Sarr, University of Oregon, Department of Earth Sciences, Eugene, OR, United States, Dr. Imogen Mireille Browne, MSc, PhD, State University of New York at Binghamton, Department of Earth Sciences, Binghamton, United States and Anna Ruth Halberstadt, University of Texas at Austin, Austin, United States
Student/Early Career Convener:  Samantha Bombard, University of Massachusetts Amherst, Department of Earth, Geographic, and Climate Sciences, Amherst, MA, United States
 
Is the grass greener in a high-CO2 world? Paleobotanical analysis of Miocene terrestrial primary productivity (1858779)
Tammo Reichgelt, University of Connecticut, Department of Earth Sciences, Storrs, United States and Christopher K West, Royal Tyrrell Museum of Palaeontology, Drumheller, AB, Canada
 
Plant biomarkers detect Messinian vegetation, climate and transport on the Iberian margin (1858831)
Yunlang Zhang1, Xiaojuan Feng2, Zongguang Liu2, Sophie Warny3, Gonzalo Jimenez-Moreno4, Manuel Teixeira5, Francisco Javier Hernández Molina6, Francisco J Rodriguez-Tovar7, Francisco J Sierro8, Simon C George9, Melissa A Berke10, Rachel Flecker11, Emmanuelle Ducassou12, Trevor Williams13 and Sarah J Feakins14, (1)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (2)State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China, (3)Louisiana State University, Geology & Geophysics, and Museum of Natural Science, Baton Rouge, LA, United States, (4)Universidad de Granada, Granada, Spain, (5)Instituto Dom Luiz - Lisbon University, Lisbon, Portugal, (6)Spanish National Research Council, Andalucian Earth Sciences Research Institute, Grenada, Spain, (7)Univ de Granada, Granada, Spain, (8)University of Salamanca, Department of Geology, Salamanca, Spain, (9)Macquarie University, Sydney, Australia, (10)University of Notre Dame, Department of Civil and Environmental Engineering and Earth Sciences, Notre Dame, IN, United States, (11)University of Bristol, School of Geographical Sciences, Bristol, United Kingdom, (12)Univ. Bordeaux, CNRS, EPHE, INP, EPOC, UMR 5805, Pessac, France, (13)Texas A&M University, International Ocean Discovery Program, College Station, United States, (14)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
 
Reconstructing Mio-Pliocene Gulf Stream Movement Using ∆47-derived Ocean Temperatures and δ18Owater Values (1860060)
Erin Kim, University of Michigan Ann Arbor, Earth and Environmental Sciences, Ann Arbor, MI, United States, Sierra V Petersen, University of Michigan Ann Arbor, Ann Arbor, MI, United States and Dr. Harry J Dowsett, PhD, U.S. Geological Survey, Florence Bascom Geoscience Center, Reston, Virginia, United States
 
Decoupled Tectonic and Climatic Signals across the Miocene in North China: Insights from the Cenozoic Evolution of the Weihe River Basin (1863227)
Hanzhi Zhang1, Huyu Lu2, Zeyu Chen2, Hengzhi Lyu2, Wen Lai2, Yali Zhou3, Fan Lyu2, Shilei Li2 and Jun Chen2, (1)Nanjing University, School of Geography and Ocean Science, Nanjing, China, (2)Nanjing University, Nanjing, China, (3)Shaanxi Normal University, Xi'an, China
 
The onset of the modern Antarctic Circumpolar Current (Invited) (1871704)
Dimitris Evangelinos, Universitat de Barcelona, Barcelona, Spain
 
Evaluating Early Miocene Hiatuses in the Atlantic Deep-Sea Sedimentary Record (1881551)
Natalia Freedman, Vanderbilt University, Nashville, TN, United States, Jennifer Kasbohm, Carnegie Institution for Science Washington, Earth & Planets Laboratory, Washington, United States, Elizabeth C Sibert, Woods Hole Oceanographic Institution, Woods Hole, United States, Gawain Antell, University of California Los Angeles, Geography, Los Angeles, United States, Alexandra Auderset, University of Southampton, Southampton, SO14, United Kingdom, Dr. Imogen Mireille Browne, MSc, PhD, State University of New York at Binghamton, Department of Earth Sciences, Binghamton, United States, Jesse R Farmer, University of Massachusetts Boston, Boston, MA, United States, Dr. Anya Hess, George Mason University, Fairfax, United States, Adriane Renee Lam, Binghamton University, Department of Earth Sciences, Binghamton, United States, Kenji Matsuzaki, The University of Tokyo, Atmosphere and Ocean Research Institute, Tokyo, United States, Jansen A. Smith, University of Minnesota Duluth, Duluth, United States, Anshuman Swain, University of Michigan, Ecology and Evolutionary Biology, Ann Arbor, United States and Adam Woodhouse, Cardiff University, School of Earth and Environmental Sciences, Cardiff, United Kingdom
 
Pollen-Based CREST Reconstructions of Miocene Rainfall on the Western Portuguese Margin (1883319)
Sophie Warny, Louisiana State University, Geology & Geophysics, and Museum of Natural Science, Baton Rouge, LA, United States, Gonzalo Jimenez-Moreno, Universidad de Granada, Granada, Spain, Martha E. Gibson, Petrostrat Ltd, Conwy, United Kingdom, Sarah J Feakins, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, Yunlang Zhang, University of Southern California, Earth Sciences, Los Angeles, CA, United States, Rachel Flecker, University of Bristol, School of Geographical Sciences, Bristol, United Kingdom, Emmanuelle Ducassou, Univ. Bordeaux, CNRS, EPHE, INP, EPOC, UMR 5805, Pessac, France and Trevor Williams, Lamont Doherty Earth Obs, Palisades, United States
 
Sapropels lasting >700kyr in the Messinian Alborán Sea (1909671)
Sarah J Feakins1, Zhiyang Li2, Simon C George3, Ita Wulandari3, Francisco J Rodriguez-Tovar4, Sophie Warny5, Fadl Raad6, Disha Baidya7, Yunlang Zhang8, Patricia Standring9, Barbara Balestra10, Melissa A Berke11, Trevor Williams12, Yangzhuang Li13, Emmanuelle Ducassou14, Francisco Javier Hernández Molina15, Francisco J Sierro16 and Rachel Flecker17, (1)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (2)Texas A&M International University, Laredo, TX, United States, (3)Macquarie University, Sydney, Australia, (4)Univ de Granada, Granada, Spain, (5)Louisiana State University, Geology & Geophysics, and Museum of Natural Science, Baton Rouge, LA, United States, (6)University of Montpellier, Montpellier, France, (7)University of Southern California, Los Angeles, CA, United States, (8)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (9)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (10)American University, Department of Environmental Science, Washington, DC, United States, (11)University of Notre Dame, Department of Civil and Environmental Engineering and Earth Sciences, Notre Dame, IN, United States, (12)Texas A&M University, College Station, United States, (13)University of Notre Dame, South Bend, United States, (14)Univ. Bordeaux, CNRS, EPHE, INP, EPOC, UMR 5805, Pessac, France, (15)Spanish National Research Council, Andalucian Earth Sciences Research Institute, Grenada, Spain, (16)University of Salamanca, Department of Geology, Salamanca, Spain, (17)University of Bristol, School of Geographical Sciences, Bristol, United Kingdom
 
How did coral reefs survive the Miocene Climatic Optimum? Coral reefs survival and collapse in a warmer world. (Invited) (1910164)
Dr. Benjamin Petrick, University College London, London, United Kingdom; University of Kiel, Institute of Geosciences, Kiel, Germany, Lars Reuning, CAU Kiel, Institute of Geosciences, Kiel, Germany, Or Bialik, University of Münster, Münster, Germany, Lorenz Schwark, University of Kiel, Marine Science, Kiel, Germany and Miriam Pfeiffer, Kiel University (CAU), Kiel, Germany
 
Multi-proxy evidence of an active Atlantic Meridional Overturning Circulation in the Middle Miocene (1919991)
Weimin Si1, Feng Zhu2, Sophia Hines3, Kaustubh Thirumalai4, Jiang Zhu2, John R Toggweiler5 and Timothy Herbert1, (1)Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States, (2)NSF National Center for Atmospheric Research, Boulder, United States, (3)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, United States, (4)University of Arizona, Department of Geosciences, Tucson, United States, (5)NOAA Geophysical Fluid Dyn Lab, Princeton, NJ, United States
 
Global and Regional Benthic δ18O Responses to Astronomical Forcing throughout the Miocene (1920808)
Lorraine E Lisiecki, University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States, Bethany Hobart, University of California, Santa Barbara, Earth Science, Santa Barbara, United States, Stephen Richard Meyers, University of Wisconsin - Madison, Geoscience, Madison, United States and Yuxin Zhou, Georgia Institute of Technology, Atlanta, United States
 
Miocene mega-wetland of western Amazonia: a climate and environmental outlook (1921481)
Franciele Trentin1, Karlos Guilherme Diemer Kochhann1, Luciana Rigon Carneiro Duarte1, Rita G. Oliveira1, Lilian M. Leandro1, Jorge Villegas-Martín1, Marcus Vinicius Lermen Kochhann2 and Carlos D’Apolito3, (1)Unisinos University, itt OCEANEON - Technological Institute for Paleoceanography and Climate Change, São Leopoldo, Brazil, (2)University of Sao Paulo, Institute of Geosciences, Sao Paulo, Brazil, (3)Universidade Federal do Acre, Center for Biological and Natural Sciences, Rio Branco, Brazil
 
Neogene Southwestern U.S. Temperatures Paced by Global Temperature Change (1924813)
Rachel Bernstein1, Daniel Koning2, Ashley Maloney3, Siânin Spaur2, Kevin Hobbs2, Gabriela Sanchez Ortiz1, Andreas Mulch4, Katharina Methner5, Daniel Enrique Ibarra6, Kathryn E Snell3 and Jeremy K Caves Rugenstein1, (1)Colorado State University, Department of Geosciences, Fort Collins, United States, (2)New Mexico Bureau of Geology and Mineral Resources, Socorro, United States, (3)University of Colorado Boulder, Department of Geological Sciences, Boulder, United States, (4)Senckenberg Biodiversity and Climate Research Centre (SBiK-F), Frankfurt, Germany, (5)University of Leipzig, Institute of Geophysics and Geology, Leipzig, Germany, (6)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, United States
 
Pollen-Based Climate Reconstructions Across a West Pacific Transect During the Miocene Climatic Optimum (1933191)
Kenji Izumi, Yi Yang and Shufeng Li, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Yunnan Key Laboratory of Forest Ecosystem Stability and Global Change Response, Mengla, China
 
The Early Miocene: Investigating a Transformative Time for Marine Biota and Environments (1952486)
Dr. Anya Hess, George Mason University Fairfax, Fairfax, VA, United States, Jennifer Kasbohm, Carnegie Institution for Science Washington, Earth & Planets Laboratory, Washington, United States, Gawain Antell, University of California Los Angeles, Geography, Los Angeles, United States, Dr. Imogen Mireille Browne, MSc, PhD, State University of New York at Binghamton, Department of Earth Sciences, Binghamton, United States, Jesse R Farmer, University of Massachusetts Boston, Boston, MA, United States, Adriane Renee Lam, Binghamton University, Department of Earth Sciences, Binghamton, United States, Kenji Matsuzaki, The University of Tokyo, Atmosphere and Ocean Research Institute, Tokyo, United States, Elizabeth C Sibert, Woods Hole Oceanographic Institution, Woods Hole, United States, Jansen A. Smith, University of Minnesota Duluth, Duluth, United States, Anshuman Swain, University of Michigan, Ecology and Evolutionary Biology, Ann Arbor, United States and Adam Woodhouse, Cardiff University, School of Earth and Environmental Sciences, Cardiff, United Kingdom
 
Terrestrial paleotemperature and paleobotanical records point to late Miocene cooling and wetter Neotropical climates (1955322)
Elena Stiles1,2, Katharine W Huntington3, Carmala Garzione4, Caroline A E Strömberg5, Camilo Montes6, Jaime Escobar7, Carlos Jaramillo8, Andrés Felipe Vanegas9, César Perdomo10, Andrew J Schauer5, Zhennan Wang11, Daniel Esteban Góngora12, Lin Li13, Federico Moreno14, David L Dettman15, Lina C Pérez-Angel, PhD16, René López Camacho17 and Andrés Felipe Torrejano18, (1)Burke Museum of Natural History and Culture, Seattle, United States, (2)University of Washington Seattle Campus, Biology, Seattle, United States, (3)University of Washington, Department of Earth and Space Sciences, Seattle, United States, (4)University of Arizona, Geoscience, Tucson, AZ, United States, (5)University of Washington, Seattle, United States, (6)Universidad de los Andes, Bogotá, Colombia, (7)Universidad del Norte, Ingeniería Civil y Ambiental, Barranquilla, Colombia, (8)Smithsonian Tropical Research Institute, Panama, Panama, (9)Museo de Historia Natural La Tatacoa, La Victoria, Colombia, (10)Museo La Tormenta, Villavieja, Colombia, (11)University of Arizona, Tucson, AZ, United States, (12)Instituto Geográfico Agustín Codazzi, Bogotá, Colombia, (13)University of Arizona, Tucson, United States, (14)University of Rochester, Rochester, NY, United States, (15)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (16)University of Colorado at Boulder, Department of Geological Sciences and the Institute of Arctic and Alpine Research, Boulder, CO, United States, (17)Universidad Distrital Francisco José de Caldas, Bogota, Colombia, (18)Instituto Humboldt, Bogotá, Colombia
 
The Miocene of the Western Ross Sea, Antarctica: The MCO and MMCT of DSDP Site 273 (1967284)
Samantha Bombard, University of Massachusetts Amherst, Department of Earth, Geographic, and Climate Sciences, Amherst, MA, United States, R Mark Mark Leckie, Univ Massachusetts, Earth, Geographic, and Climate Sciences, Amherst, United States, David M Harwood, University of Nebraska Lincoln, Department of Earth and Atmospheric Sciences, Lincoln, NE, United States, Dr. Imogen Mireille Browne, MSc, PhD, State University of New York at Binghamton, Department of Earth Sciences, Binghamton, United States, Dr. Amelia Shevenell, Ph.D., University of South Florida, Tampa, United States and Felipe Stanchak, University of South Florida Tampa, Tampa, United States
 
The Role of CO2 and Orbital Configuration on Modulating the South American Monsoon System During the Miocene Climatic Optimum (1972346)
Hamida Ngoma Nadoya, University of Connecticut, Department of Earth Sciences, Groton, CT, United States and Clay Richard Tabor, University of Connecticut, Earth Sciences, Storrs, United States
 
Does Long-term Hydroclimate Evolution Drive Landscape Opening in Miocene Northwest Africa? (1983018)
Anna Schartman and Pratigya Polissar, University of California, Santa Cruz, Ocean Sciences, Santa Cruz, United States
 
Spatiotemporal Variability of C₄ Grassland Expansion in the Central and South-Central Andes (1983256)
Iffat Azmi, North Carolina State University Raleigh, Department of Marine, Earth and Atmospheric Sciences, Raleigh, NC, United States, Ethan Hyland, North Carolina State University Raleigh, Department of Marine, Earth & Atmospheric Sciences, Raleigh, United States, Jennifer M Cotton, California State University, Northridge, Los Angeles, CA, United States, Scott Hauswirth, University of North Carolina at Chapel Hill, Chapel Hill, United States, Adit Ghosh, University of Southern California, Department of Earth Sciences, Los Angeles, United States, Shelby Littleton, California State University Northridge, Department of Geological Sciences, Northridge, United States, Ryan Kellis, California State University Northridge, Geological Sciences, Northridge, United States, Nadja Insel, Northeastern Illinois University, Earth Science, Chicago, IL, United States, Maria Sol Raigemborn, Universidad Nacional de La Plata, Centro de Investigaciones Geologicas, La Plata, Argentina and David Tineo, Universidad Nacional de La Plata, Argentina, Centro de Investigaciones Geologicas, La Plata, Argentina
 
A wetter middle Miocene Mediterranean climate enhanced by seasonality and orography in higher spatial resolution simulations (1993784)
Loren Doyle1, R. Paul Acosta2, Natalie Burls2 and Matthew J Pound3, (1)George Mason University Fairfax, Fairfax, VA, United States, (2)George Mason University, Fairfax, United States, (3)Northumbria University, Department of Geography and Environmental Sciences, Newcastle-Upon-Tyne, United Kingdom
 
Using Regional Climate Models to Simulate Neogene Climates and Tectonic Mechanisms of Uplift in the Altai Mountains of Central Asia (1995717)
Jared Sexton, University of California Irvine, Irvine, CA, United States, Jane Wilson Baldwin, University of California Irvine, Earth System Science, Irvine, United States, R. Paul Acosta, George Mason University, Fairfax, United States, Frank J Pazzaglia, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, United States, Joseph Galewsky, University of New Mexico, Earth & Planetary Sciences, Albuquerque, NM, United States and Jeremy Rugenstein, Colorado State University, Geosciences, Fort Collins, United States
 
Bayesian application of integrated stratigraphy to generate probabilistic age models for the Miocene section of a latitudinal transect of North Atlantic sites (558, 563, 608, and 982) (2001633)
William Schmelz1, Ronan Keating1, Kenneth Miller1, James Wright1 and Mitchell Lyle2, (1)Rutgers University, Department of Earth and Planetary Sciences, New Brunswick, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States