DI33C:
The Archean Earth and Its Venusian Analogue II Posters


Submit an Abstract to this Session


Session ID#: 52448

Session Description:
Plate tectonics, continents, the oxygen atmosphere – the beginnings of Earth as we know it today – began to take shape in the Archean.  What caused Earth to transition to plate tectonics? How was the first step, subduction, initiated?  How is continent formation related? How did the formation of crust differ? Venus’ lithosphere today is hot due to the greenhouse atmosphere, potentially providing a good analog to lithospheric conditions on early Earth.  Plume-induced subduction appears to be operating today, yet plate tectonics is absent.  Large, highly deformed plateaus could be analogs of continents.  What caused these twin planets to evolve to such different end members?  Is the interior of Venus dry, and is that the reason it lacks plate tectonics? Or is temperature the key factor?  Studies of planetary evolution, convection, crust formation, geologic processes, and links between interior, surface and atmosphere on Venus and Earth are invited.
Primary Convener:  Dr. Suzanne E Smrekar, PhD, JPL/NASA/Caltech, Pasadena, United States
Conveners:  Anne Davaille, CNRS / University Paris-Sud, Laboratoire FAST, Orsay, France and Bradford J Foley, Pennsylvania State University, Department of Geosciences, University Park, PA, United States
Primary Liaison:  Anne Davaille, CNRS / University Paris-Sud, Laboratoire FAST, Orsay, France
Chairs:  Prof. Paul K Byrne, Universities Space Research Association, Lunar and Planetary Institute, Houston, TX, United States, Grant Euen, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States and Anne Davaille, CNRS / University Paris-Sud, Laboratoire FAST, Orsay, France
OSPA Liaison:  Dr. Suzanne E Smrekar, PhD, JPL/NASA/Caltech, Pasadena, United States
Co-Organized with:
Study of Earth's Deep Interior, and Planetary Sciences

Cross-Listed:
  • P - Planetary Sciences
  • T - Tectonophysics

Proposed Co-Organized Session with:
  • P - Planetary Sciences
Index Terms:

5430 Interiors [PLANETARY SCIENCES: SOLID SURFACE PLANETS]
8103 Continental cratons [TECTONOPHYSICS]
8149 Planetary tectonics [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

A new paleomagnetic constraint on Mesoarchean plate motion from the Pilbara Craton, Western Australia (432345)
Alec R Brenner1, Roger R Fu1, David A Evans2 and Aleksey V Smirnov3, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)Yale University, New Haven, CT, United States, (3)Michigan Technological University, Department of Geological and Mining Engineering and Sciences, Houghton, United States
Timing of sedimentation of the Cleaverville Formation, coastal Pilbara terrane, Pilbara, Western Australia: new age dating, identified post-accretion pull-apart system and DXCL drilling result (349488)
Shoichi Kiyokawa1, Yuhei Aihara2, Tsubasa Miki3, Mami Takehara4 and Kenji Horie4, (1)Kyushu University, Department of Earth and Planetary Science, Fukuoka, Japan, (2)Japan Geoscience Union, Fukuoka, Japan, (3)Kyushu University, Fukuoka, Japan, (4)NIPR National Institute of Polar Research, Tokyo, Japan
Venusian Impacts: Starting a Mobile Lid (351963)
Grant Euen and Scott D. King, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
The curious case of the rock at Venera 8: is it a silicic rock from a bimodal volcanic complex of a Venusian greenstone belt? (358364)
John Gregory Shellnutt, NTNU National Taiwan Normal University, Taipei, Taiwan
The Transition from Reworking of Hadean Crust to Generation of New Archean Crust: The Slave Craton Perspective (418526)
Richard W Carlson1, Jesse Ray Reimink1, Steven B Shirey2, Graham Pearson3, John W.F. Ketchum4, Andrea Mundl-Petermeier5 and Richard J Walker6, (1)Carnegie Institution for Science, DTM, Washington, DC, United States, (2)Carnegie Science, Earth and Planets Laboratory, Washington, United States, (3)University of Alberta, Earth and Atmospheric Sciences, Edmonton, AB, Canada, (4)Northwest Territories Geological Survey, Yellowknife, NT, Canada, (5)University of Maryland College Park, Department of Geology, College Park, United States, (6)University of Maryland College Park, Department of Geology, College Park, MD, United States
Sampling Venus’ atmosphere to measure noble gases and their isotope ratios (393507)
Christophe Sotin, NASA Jet Propulsion Laboratory, Pasadena, CA, United States, Arnaus P Borner, AMA, Inc. at NASA Ames Research Center, USA, Moffett Field, United States, Michail A Gallis, SANDIA National Laboratories, Albuquerque, NM, United States, Jason Rabinovitch, Stevens Institute of Technology, Hoboken, NJ, United States, Guillaume Avice, IPGP institut de physique du globe de paris, Paris, France, Murrach R. Darrach, Jet Propulsion Laboratory, Pasadena, CA, United States, Stojan M Madzunkov, NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Bernard Marty, CRPG Centre de Recherches Pétrographiques et Géochimiques, Vandoeuvre-Les-Nancy, France, John Baker, NASA Jet Propulsion Laboratory, Pasadena, United States and Nagi Nicolas Mansour, NASA Ames Research Center, Moffett Field, CA, United States
Plume Penetration into Venusian Lithosphere and the Origin of Coronae. (390470)
Anna Gülcher, ETH Swiss Federal Institute of Technology Zurich, Zürich, Switzerland, Taras Gerya, ETH Zurich, Department of Earth and Planetary Sciences, Zurich, Switzerland, Laurent Montesi, University of Maryland College Park, Department of Geology, College Park, MD, United States and Jessica Munch, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
A Kinematic Record of Progressive Emplacement of the 3.47-3.23 Ga Mt Edgar Granitic Complex, East Pilbara Craton, Western Australia (430406)
Nicolas Roberts1, Casey Idzikowski2, Rex Key2 and Basil Tikoff3, (1)University of Wisconsin Madison, Madison, WI, United States, (2)University of Wisconsin Madison, Geoscience, Madison, WI, United States, (3)Univ Wisconsin, Madison, United States
Quantifying short timescale subduction episodicity at early Earth mantle thermal conditions (424687)
Bradford J Foley, Pennsylvania State University Main Campus, University Park, PA, United States
Observational Constraints on Plume-Induced Subduction on Venus (427478)
Dr. Suzanne E Smrekar, PhD, JPL/NASA/Caltech, Pasadena, United States, Anne Davaille, CNRS / University Paris-Sud, Laboratoire FAST, Orsay, France, Cathy Miao, California Institute of Technology, Pasadena, CA, United States, Evan S Tucker, Smead Aerospace Engineering Sciences, Colorado Center for Astrodynamics Research, University of Colorado Boulder, Boulder, United States and Joseph G O'Rourke, Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States
Plume-induced subduction and continents formation on the Archean Earth and Venus (427883)
Anne Davaille, CNRS / University Paris-Sud, Laboratoire FAST, Orsay, France, Arnaud Salvador, Univ. Paris Sud - Univ. Paris Saclay, CNRS, FAST, GEOPS, Orsay, France, Dr. Suzanne E Smrekar, PhD, JPL/NASA/Caltech, Pasadena, United States and Helene Massol, Univ. Paris XI, Orsay, France
A Globally Fragmented and Mobile Lithosphere on Venus (440855)
Prof. Paul K Byrne, North Carolina State University, Raleigh, NC, United States, Richard Ghail, Imperial College London, London, United Kingdom, A M Celal Sengor, Istanbul Technical University, Eurasia Institute of Earth Sciences, Istanbul, Turkey, Peter B. James, Baylor University, Waco, TX, United States, Christian Klimczak, University of Georgia, Department of Geology, Athens, GA, United States and Sean C Solomon, Lamont-Doherty Earth Observatory, Palisades, NY, United States

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