PP13E:
The North Atlantic Region in the Early Icehouse World Posters


Submit an Abstract to this Session


Session ID#: 54097

Session Description:
The establishment of a permanent icecap on Antarctica ~33 Ma marks the beginning of our current icehouse climate. Decreasing atmospheric CO2and reorganization of southern gateways causing changes in ocean circulation are commonly considered as the main drivers of this climate shift, with orbital parameters setting the pace of change. However, the nature and potential role of northern hemisphere changes and forcings, especially in the North Atlantic (a critical component of modern ocean-climate system and known to be climatically sensitive during the Pleistocene), remains uncertain. An unfolding picture of early Cenozoic changes in North Atlantic oceanography, climate, biota, and solid Earth processes (tectonics) highlights the need for multidisciplinary studies in this region. This session encourages contributions that explore links between geologic history, cryosphere development, oceanography and the environment affecting the North Atlantic basin (and beyond) during the late Paleogene to early Neogene. Proxy and physical and numerical modeling studies are welcome.
Primary Convener:  Katarzyna Sliwinska, Geological Survey of Denmark and Greenland, Copenhagen, Denmark
Conveners:  Helen Katherine Coxall, Stockholm University, Department of Geological Sciences, Stockholm, Sweden, Peter C Lippert, University of Utah, Geology and Geophysics, Salt Lake City, UT, United States and Brian Romans, Virginia Tech, Geosciences, Blacksburg, United States
Primary Liaison:  Brian Romans, Virginia Tech, Geosciences, Blacksburg, United States
Chairs:  Katarzyna Sliwinska, Stratigrafisk afdeling, Copenhagen K, Denmark and Brian Romans, Virginia Tech, Geosciences, Blacksburg, United States
OSPA Liaison:  Peter C Lippert, University of Utah, Geology and Geophysics, Salt Lake City, UT, United States

Cross-Listed:
  • C - Cryosphere
  • EP - Earth and Planetary Surface Processes
  • GC - Global Environmental Change
  • OS - Ocean Sciences
Index Terms:

1635 Oceans [GLOBAL CHANGE]
4899 General or miscellaneous [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4999 General or miscellaneous [PALEOCEANOGRAPHY]
9325 Atlantic Ocean [GEOGRAPHIC LOCATION]

Abstracts Submitted to this Session:

Evidence of Extensive Carbonate Dissolution associated with the late Eocene Inundation of North Atlantic Deep-water along the U.S. mid-Atlantic Margin (396751)
James C Gibson1,2, Nathaniel C Miller2, Deborah R Hutchinson2, Donna J Shillington3 and Gregory S Mountain4, (1)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (2)US Geological Survey, Woods Hole, MA, United States, (3)Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, United States, (4)Rutgers University, Department of Earth and Planetary Sciences, Piscataway, United States
Air temperature trends across the North Atlantic region in the early icehouse world (403622)
Katarzyna Sliwinska, Geological Survey of Denmark and Greenland, Copenhagen, Denmark, Diederik Liebrand, MARUM - University of Bremen, Bremen, Germany, Tim Eelco van Peer, University of Southampton, Southampton, United Kingdom, Claus Heilmann-Clausen, Aarhus University, Department of Geoscience, Århus, Denmark and Stefan Schouten, Royal NIOZ, Den Burg, Netherlands
NE Atlantic Cenozoic Paleobathymetry: Oceanic Gateway Formation and Paleo-ocean Circulation. (Invited) (404712)
Eivind Olavson Straume1, Carmen Gaina2, Joseph Henry LaCasce3, Sergei Medvedev4, Ada Gjermundsen3, Andreas Klocker5 and Maxim Nikurashin6, (1)Centre for Earth Evolution and Dynamics (CEED), Department of geosciences , University of Oslo, Oslo, Norway, (2)University of Oslo, Centre for Planetary Habitability (PHAB), Department of Geosciences, Oslo, Norway, (3)University of Oslo, Department of Geosciences, Oslo, Norway, (4)University of Oslo, Centre for Earth Evolution and Dynamics, Oslo, Norway, (5)University of Tasmania, Institute for Marine and Antarctic Studies, Tasmania, TAS, Australia, (6)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia
The Role of the Greenland-Scotland Ridge in Step-wise Cooling of the Nordic Seas from the Middle to Late Miocene (407449)
Nicholas A O'Mara, Lamont-Doherty Earth Observatory of Columbia University, Palisades, United States, Pratigya J Polissar, Lamont-Doherty Earth Observatory, Biology and Paleoenvironment, Palisades, NY, United States, Kevin T Uno, Harvard University, Human and Evolutionary Biology, Cambridge, United States, Samuel R. Phelps, Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY, United States, Rachel K Buzeta, The University of Dayton, The Department of Geology, Dayton, United States and Peter B deMenocal, Lamont-Doherty Earth Observatory, Palisades, United States
Evolution of Atlantic Meridional Overturning Circulation and meridional thermal gradients during the Miocene from legacy DSDP and ODP sites (414836)
Maria Makarova1, Mariya Galochkina2, Sophie Benaroya3, Lucia Bellino1, Julie Fircha3, Kenneth G Miller4, Yair Rosenthal5, James V Browning6 and James Wright7, (1)Rutgers University New Brunswick, Earth and Planetary Sciences, New Brunswick, NJ, United States, (2)Rutgers University New Brunswick, New Brunswick, NJ, United States, (3)Rutgers University New Brunswick, Earth and Planetary Sciences, New Brunswick, United States, (4)Rutgers University New Brunswick, Earth & Planetary Sciences, New Brunswick, NJ, United States, (5)Rutgers University, New Brunswick, United States, (6)Rutgers University, Earth and Planetary Sciences, Piscataway, United States, (7)Rutgers University, Department of Earth and Planetary Sciences, New Brunswick, United States
An Arctic gateway trigger for Atlantic overturning at the Eocene-Oligocene Transition (432145)
David Karel Hutchinson1, Agatha M De Boer2, Helen Katherine Coxall2, Rodrigo Caballero1, Johan Nilsson3 and Matt O'Regan2, (1)Stockholm University, Stockholm, Sweden, (2)Stockholm University, Department of Geological Sciences, Stockholm, Sweden, (3)Stockholm University, Department of meteorology, Stockholm, Sweden
Dust-climate feedback to surface uplift and pCO2 drawdown at the Eocene-Oligocene transition (443106)
Ran Feng, University of Connecticut, Center for Integrative Geosciences, Groton, CT, United States, Majie Fan, Department of Earth and Environmental Sciences, The University of Texas at Arlington, Arlington, United States and Samuel Albani, Cornell University, Ithaca, NY, United States
Exploring the impact of the rise of Greenland-Scotland Ridge on ocean circulation and climate (447132)
Jonathan W Winfield Rheinlænder, Nansen Environmental and Remote Sensing Center, Bergen, Norway, David Ferreira, MIT--EAPS, Cambridge, United States; University of Reading, Meteorology Department, Reading, United Kingdom and Prof. Kerim Hestnes Nisancioglu, Ph.d. , University of Bergen and the Bjerknes Centre for Climate Research, Bergen, Norway
Gradual Intensification of North Atlantic Deep Circulation from Middle Eocene Through Late Oligocene: Terrigenous Grain Size Data from IODP Sites U1406 and U1411, Newfoundland Ridges (456069)
Andrew Parent, Virginia Tech, Geosciences, Blacksburg, VA, United States, Kristin Chilton, Virginia Tech, Blacksburg, VA, United States and Brian Romans, Virginia Tech, Geosciences, Blacksburg, United States
Evolution of Atlantic Meridional Overturning Circulation and Meridional Temperature Gradients During the Cenozoic: Evidence from seismic stratigraphy (456661)
Gregory S Mountain, Rutgers University, Earth and Planetary Sciences, Piscataway, United States, Mitchell W Lyle, Oregon State University, College of Earth Ocean and Atmospheric Science, Corvallis, OR, United States, Kenneth G Miller, Rutgers University New Brunswick, Earth & Planetary Sciences, New Brunswick, NJ, United States and Kimberly Baldwin, Rutgers University, Earth & Planetary Sciences, Piscataway, NJ, United States
Miocene North Atlantic Sea Surface and Thermocline Temperature Variations (20-8 Ma) (346338)
Mariya Galochkina1, Kenneth G Miller2, Maria Makarova1, James V Browning3 and James Wright4, (1)Rutgers University New Brunswick, New Brunswick, NJ, United States, (2)Rutgers University New Brunswick, Earth & Planetary Sciences, New Brunswick, NJ, United States, (3)Rutgers University, Earth and Planetary Sciences, Piscataway, United States, (4)Rutgers University, Department of Earth and Planetary Sciences, New Brunswick, United States
Organic Paleotemperature Reconstructions from the Early Icehouse North Atlantic (Invited) (386162)
Charlotte Lucy O'Brien1, Mark Pagani1 and Pincelli M Hull2, (1)Yale University, Department of Geology and Geophysics, New Haven, CT, United States, (2)Yale University, Department of Earth & Planetary Sciences, New Haven, CT, United States

See more of: Paleoceanography and Paleoclimatology