T005:
Breaking Up is Never Easy: Why Do Some Rifts Fail and Others Succeed?





Session ID#: 22413

Session Description:
The breakup of continents is a fundamental process of plate tectonics. However, we have not yet identified the crucial ingredients that permit complete rupture of strong continental lithosphere. Studies of continental breakup are biased towards success stories - rifts that evolve to oceanic spreading. Some extension episodes cease before this point, presumably in the absence of some fundamental process, initial condition(s), or forcing. Investigations of “failed rifts” may help isolate key processes or conditions that enable continental breakup, particularly when compared to successful examples. Outstanding questions include: Does rift success/failure depend on intrinsic or far-field properties? How do pre-existing structure, magma, and volatiles influence rift initiation, continuation, and extinction? Are failed rifts actually “paused rifts” that can later be reactivated? Do analogous mechanical controls apply to extinct seafloor spreading centers? We solicit contributions from diverse geoscience perspectives, including geodesy, geodynamics, geochemistry/petrology, volcanology, structural geology and seismology.
Primary Convener:  Zach Eilon, University of California Santa Barbara, Earth Science, Santa Barbara, CA, United States
Conveners:  Natalie J Accardo, Columbia University of New York, Palisades, NY, United States, James D Muirhead, University of Idaho, Geological Sciences, Moscow, ID, United States and D. Sarah Stamps, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Co-Organized with:
Tectonophysics, Geodesy, and Seismology

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • G - Geodesy
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

Abstracts Submitted to this Session:

Wang-Ping Chen, China University of Geosciences Wuhan, Wuhan, China and Jieyuan Ning, Earth and Space Sciences, Peking University, Beijing, China
Anna E Foster, GEOTOP-UQAM, Montreal, QC, Canada, Fiona Ann Darbyshire, University of Quebec at Montreal UQAM, Centre de recherche GEOTOP, Montreal, QC, Canada and Andrew J Schaeffer, University of Ottawa, Department of Earth and Environmental Sciences, Ottawa, ON, Canada
Azusa Nishizawa, Kentaro Kaneda, Mitsuhiro Oikawa, Daishi Horiuchi, Yukari Fujioka and Chiaki Okada, Japan Coast Guard, Hydrogr. & Oceanogr. Dept., Tokyo, Japan
Francois Sapin, Total SA, Courbevoie, France and Thomas Maurin, TOTAL - Centre Scientifique et Technique Jean Feger, Pau, France
Brandon Shuck, University of Texas at Austin, Austin, TX, United States and Harm J Van Avendonk, Univ of Tx-Austin-Geosciences, Austin, TX, United States
Christopher A Scholz1, Donna J Shillington2 and Tannis McCartney1, (1)Syracuse University, Syracuse, NY, United States, (2)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Erica Pitcavage, Pennsylvania State University Main Campus, University Park, PA, United States, Tanya Furman, Pennsylvania State University Main Campus, Geoscience, University Park, PA, United States and Wendy R Nelson, Towson University, Towson, MD, United States
Cate A Bressers, Pennsylvania State University Main Campus, Department of Geosciences, University Park, PA, United States, Andy Nyblade, Pennsylvania State University Main Campus, University Park, PA, United States and Fred Tugume, Geological Survey Department, Entebbe, Uganda
Manon Dalaison1, Elifuraha Saria2, Eric Calais1, Cécile Doubre3 and Frederic Masson4, (1)Ecole Normale Supérieure Paris, Paris, France, (2)Ardhi University, Department of Geomatics, Dar es Salam, Tanzania, (3)Institut de Physique du Globe de Strasbourg, UMR 7516, Université de Strasbourg/EOST, CNRS, Strasbourg, France, (4)Institut de Physique du Globe Strasbourg, CNRS-UMR 7516, DGDA, Strasbourg Cedex, France
Thomas Hudgins, University of Puerto Rico Mayaguez, Department of Geology, Mayaguez, PR, United States and Wendy R Nelson, Towson University, Towson, MD, United States
Cynthia J Ebinger, Tulane University of Louisiana, New Orleans, LA, United States, Connor Drooff, University of Rochester, Rochester, NY, United States, Aude Lavayssiere, University of Southampton, Southampton, SO14, United Kingdom, Derek Keir, Instituto di Geoscienze e Georisorse, Consiglio Nazionale delle Ricerche, Florence, Italy, Sarah Jaye Oliva, Tulane University of Louisiana, Earth and Environmental Sciences, New Orleans, LA, United States, Gabrielle Tepp, Alaska Volcano Observatory Anchorage, Anchorage, AK, United States and Ryan James Gallacher, National Oceanography Centre, Southampton, United Kingdom
James Muirhead, Syracuse University, Syracuse, NY, United States and Christopher A Scholz, Syracuse Univ, Syracuse, NY, United States
Sascha Brune, GFZ German Research Centre for Geosciences, Potsdam, Germany
Michael Edward Wysession1, Martin J Pratt2, Rakotondraibe Tsiriandrimanana3,4, Fenitra Sy Tanjona Andriampenomanana Ny Ony3,4, Andrew Nyblade5, Raymond J Durrheim6, Frederik J Tilmann7, Georg Rumpker8, Gérard Rambolamanana4, Ghassan I Aleqabi1 and Patrick Shore2, (1)Washington University in St Louis, Department of Earth and Planetary Sciences, St. Louis, MO, United States, (2)Washington University in St Louis, St. Louis, MO, United States, (3)University of the Witwatersrand, Johannesburg, South Africa, (4)Institute and Observatory of Geophysics Antananarivo-University of Antananarivo, Physics, Antananarivo, Madagascar, (5)Pennsylvania State University, Department of Geosciences, University Park, PA, United States, (6)University of Witwatersrand, Johannesburg, South Africa, (7)Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany, (8)Goethe University Frankfurt, Frankfurt, Germany
Michael Nirrengarten, EOST École et Observatoire des Sciences de la Terre, Strasbourg Cedex, France, Gianreto Manatschal, University of Strasbourg, Strasbourg Cedex, France, Julie Tugend, Université de Strasbourg, Strasbourg, France, Nicholas J Kusznir, Univ Liverpool, Liverpool, United Kingdom and Daniel Sauter, Institut de Physique du Globe de Strasbourg; UMR7516, Université de Strasbourg, CNRS, Strasbourg, France
Max Rohrman, Murphy Oil Corporation, Exploration, Houston, TX, United States
Thamer Aldaajani, Pennsylvania State University Main Campus, University Park, PA, United States, Kevin Furlong, Penn State University, University Park, United States and Rocco Malservisi, University of South Florida, School of Geosciences, Tampa, FL, United States
Alexander Weinstein1, Sarah J Oliva1, Cynthia Ebinger2, Michael Aman3, Catherine Lambert1, Steven W Roecker4, Christel Tiberi5 and James D Muirhead6, (1)University of Rochester, Rochester, NY, United States, (2)Tulane University of Louisiana, Earth and Environmental Sciences, New Orleans, LA, United States, (3)University of Texas at Austin, Austin, TX, United States, (4)Rensselaer Polytechnic Inst, Earth & Environmental Sciences, Troy, NY, United States, (5)Universite Montpellier 2, Montpellier, France, (6)Mississauga, ON, Canada
Carol A Stein, University of Illinois at Chicago, Department of Earth & Environmental Sciences, Chicago, IL, United States, Seth Stein, Northwestern Univ, Department of Earth & Planetary Sciences, Evanston, IL, United States, Reece Phillip Elling, Northwestern University, Department of Earth and Planetary Sciences, Evanston, IL, United States, G. Randy Keller, University of Oklahoma Norman Campus, Norman, OK, United States, Jonas Kley, Georg-August-Universitaet Goettingen, Goettingen, Germany and Michael Edward Wysession, Washington Univ, Saint Louis, MO, United States

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