PP020
Icehouse Collapse and Extreme Environments— Paleoclimate of the Continental Permian
Session ID#: 80546
Session Description:
The Permian (299-252 Ma) captures Earth’s penultimate icehouse and icehouse collapse, and development of extreme greenhouse conditions, on a planet with a complex biosphere. The Late Paleozoic Icehouse was the longest and most intense glaciation of the Phanerozoic, with atmospheric composition that encompassed both the lowest CO2 and highest O2 levels of the Phanerozoic, and with high-resolution CO2 reconstructions demonstrating values comparable to those anticipated for Earth’s immediate future. Fundamental shifts occurred in atmospheric circulation, notably development of a global megamonsoon, and extreme aridity of the tropics. Extreme environments are well documented in the form of, e.g., voluminous dust deposits, acid saline lakes, extreme continental temperatures, and biotic crises and extirpations of spore plants from equatorial Euramerica, ultimately culminating at the end of the Permian with the largest extinction event in the Phanerozoic. This session aims to explore the latest results of research on Permian continental paleoclimate.
Co-Sponsor(s):
Index Terms:
1051 Sedimentary geochemistry [GEOCHEMISTRY]
1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1616 Climate variability [GLOBAL CHANGE]
1622 Earth system modeling [GLOBAL CHANGE]
Primary Convener: Gerilyn S Soreghan, University of Oklahoma Norman Campus, Norman, OK, United States
Conveners: Troy Rasbury, SUNY Stonybrook, Stony Brook, NY, United States, Ying Cui, Pennsylvania State University, University Park, PA, United States and Kathleen Counter Benison, West Virginia University, Morgantown, WV, United States
Primary Liaison: Troy Rasbury, SUNY Stonybrook, Stony Brook, NY, United States
Physiological functioning of seasonally dry-adapted floras in response to changes in late Paleozoic atmospheric composition and aridity. (495665)
Jon D Richey, University of California Davis, Davis, CA, United States, Joseph D White, Baylor Univ, Waco, TX, United States, Isabel P Montanez, Univ of California, Davis, Earth and Planetary Sciences, Davis, CA, United States, Sophia Macarewich, University of Michigan, Earth and Environmental Sciences, Ann Arbor, MI, United States, William J Matthaeus, Baylor University, Waco, TX, United States, Jonathan P Wilson, Haverford College, Haverford, PA, United States and William DiMichele, Smithsonian National Museum of Natural History, Paleobiology, Washington DC, MD, United States
Late Changhsingian Variation in Climate Proxies of the Daptocephalus Assemblage Zone, Karoo Basin, South Africa (499259)
Robert A. Gastaldo, Colby College, Department of Geology, Waterville, ME, United States, Kate Andrzejewski, Southern Methodist University, Dallas, United States, Neil J Tabor, Southern Methodist University, Dallas, TX, United States and Johann Neveling, Council for Geosciences, Pretoria, South Africa
Extreme Climate, Carbon, and Continents: Quantifying Earth system feedbacks in the late Paleozoic (Invited) (506462)
Kimberly V Lau, University of Wyoming, Geology and Geophysics, Laramie, WY, United States, Daniel Enrique Ibarra, University of California, Berkeley, Earth and Planetary Sciences, Berkeley, CA, United States, Tyler Kukla, Stanford University, Geological Sciences Department, Stanford, CA, United States and Jeremy K Caves Rugenstein, Senckenberg, Frankfurt, Germany; Max Planck Institute for Meteorology, Hamburg, Germany
The late Paleozoic icehouse-greenhouse transition along a southern high latitude continental margin (eastern Australia) (Invited) (534228)
Tracy Frank1, Christopher R Fielding2, Katarina Savatic3, Allen P Tevyaw4, Stephen McLoughlin5, Vivi Vajda6, Christopher Mays5, Robert S Nicoll7, Malcolm Bocking8 and James L Crowley9, (1)University of Nebraska Lincoln, Lincoln, NE, United States, (2)University of Nebraska Lincoln, Earth & Atmospheric Sciences, Lincoln, NE, United States, (3)University of Nebraska-Lincoln, Lincoln, NE, United States, (4)University of Nebraska-Lincoln, Earth and Atmospheric Sciences, Lincoln, NE, United States, (5)Swedish Museum of Natural History, Stockholm, Sweden, (6)Swedish Museum of Natural History, Department of Palaeobiology, Stockholm, Sweden, (7)Retired, Canberra, Australia, (8)Bocking Associates, Sydney, Australia, (9)Boise State University, Boise, ID, United States
Sedimentological characterization of the Permo-Triassic boundary in high paleolatitude, coastal plain successions of eastern Australia: no immediate change in depositional conditions (535031)
Christopher R Fielding1, Tracy Frank2, Allen P Tevyaw3, Katarina Savatic4, Vivi Vajda5, Stephen McLoughlin6, Christopher Mays6, Robert S Nicoll7, Malcolm Bocking8 and James L Crowley9, (1)University of Nebraska Lincoln, Earth & Atmospheric Sciences, Lincoln, NE, United States, (2)University of Nebraska Lincoln, Lincoln, NE, United States, (3)University of Nebraska-Lincoln, Earth and Atmospheric Sciences, Lincoln, NE, United States, (4)University of Nebraska-Lincoln, Lincoln, NE, United States, (5)Swedish Museum of Natural History, Department of Palaeobiology, Stockholm, Sweden, (6)Swedish Museum of Natural History, Stockholm, Sweden, (7)Retired, Canberra, Australia, (8)Bocking Associates, Sydney, Australia, (9)Boise State University, Boise, ID, United States
Elemental Proxies of Late Permian-Early Triassic Paleoenvironmental Change in the Bowen Basin, Queensland, Australia (561110)
Katarina Savatic, University of Nebraska-Lincoln, Lincoln, NE, United States, Tracy Frank, University of Nebraska-Lincoln, Earth and Atmospheric Sciences, Lincoln, NE, United States and Christopher R Fielding, University of Nebraska Lincoln, Earth & Atmospheric Sciences, Lincoln, NE, United States
A Model-Based Evaluation of Permo-Carboniferous Climate Change in Tropical Pangaea (563539)
Sophia Macarewich1, Christopher J Poulsen1, Jon D Richey2 and Isabel P Montanez2, (1)University of Michigan, Earth and Environmental Sciences, Ann Arbor, MI, United States, (2)University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States
Paleoclimatic significance of Permian loess and dust in Variscan basins of eastern equatorial Pangaea (582480)
Lily S Pfeifer, University of Oklahoma Norman Campus, Norman, OK, United States, Gerilyn S Soreghan, Univ of Oklahoma, Norman, OK, United States, Linda A Hinnov, George Mason University Fairfax, Atmospheric, Oceanic, and Earth Sciences, Fairfax, VA, United States and Stephane Pochat, LPGN Laboratoire de Planétologie et Géodynamique de Nantes, Nantes Cedex 03, France
Evaluating Biomarker Syngeneity of Permian-Triassic Sections from the Nanpanjiang Basin, South China (594416)
Ryosuke Saito1, Kui Wu2, Li Tian2, Xingqian Cui1 and Roger E Summons1, (1)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (2)China University of Geoscience, Wuhan, China
Icehouse-Greenhouse Transition in the Mid-Latitude Gondwana Deposits of the Paraná Basin (599105)
Renata Guimarães Netto1, Ernesto Lavina1, Joice Cagliari2, Henrique Parisi Kern3, João Henrique Dobler Lima4, Rodrigo Scalise Horodyski2, Jorge Villegas Martín3 and Daniel Sedorko5, (1)Unisinos University, Geology Graduate Program, São Leopoldo, Brazil, (2)Unisinos University, Geology Graduate Program, São Leopoldo, RS, Brazil, (3)Unisinos University, Fossil Institute of Technology, São Leopoldo, RS, Brazil, (4)Unisinos University, ICHNOS Research Group, São Leopoldo, RS, Brazil, (5)Universidade Federal de Uberlândia, Institute of Geography, Uberlândia, MG, Brazil
Provenance and cyclostratigraphy of Permo-Carboniferous dust delivered to northeastern Gondwana (613973)
Mehrdad Abadi, University of Oklahoma Norman Campus, Norman, OK, United States, Gerilyn S Soreghan, Univ of Oklahoma, Norman, OK, United States, Linda A Hinnov, George Mason University Fairfax, Fairfax, VA, United States, James D Gleason, Univ Michigan - Earth& Env Sci, Ann Arbor, MI, United States and Nicholas G Heavens, Hampton University, Atmospheric and Planetary Sciences, Hampton, VA, United States
