T54B:
Continental Rifts and Passive Margins: Geology, Geophysics, Geodynamics

Submit an Abstract to this Session



Session ID#: 31217

Session Description:
This session invites contributions on rifts and rifted margins that integrate new data sets, approaches or viewpoints. Studies can range from the outcrop to the basin or lithospheric plate scale, and include global examples. Innovative concepts and techniques based on field geology, seismology, geodesy, marine geophysics, plate reconstructions, geochemistry, sedimentology, or modeling are encouraged. Topics may include but are not limited to fault dynamics, shear zones, tectono-magmatic and sedimentary processes, impact of volatiles, the continent-ocean transition, influence of mantle dynamics and surface processes, and the role of tectonic inheritance. We particularly encourage submissions that explore along-strike structural and magmatic variations in rifts and passive margins linked to 3D modeling studies. Emphasis will be given to presentations conveying an integrated picture by bridging spatial or temporal scales, or by combining results from active rifts, failed rift arms, passive margins or fossil rifted margins exposed in mountain belts.
Primary Convener:  Carolina Pagli, GFZ German Research Centre for Geosciences, Potsdam, Germany
Conveners:  W Roger Buck, Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Patricia Persaud, Louisiana State University, Baton Rouge, LA, United States and Gianreto Manatschal, University of Strasbourg, Strasbourg Cedex, France
Chairs:  Carolina Pagli, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany and Gianreto Manatschal, University of Strasbourg, Strasbourg Cedex, France
OSPA Liaison:  Carolina Pagli, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany

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

8105 Continental margins: divergent [TECTONOPHYSICS]
8109 Continental tectonics: extensional [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Opening of the Central Atlantic Ocean: Implications for Geometric Rifting and Asymmetric Initial Seafloor Spreading after Continental Breakup (Invited) (223693)
Frauke Klingelhoefer, Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR6538, Plouzané, France, Youssef Biari, IFREMER, Plouzané, France, Mohamed Sahabi, University of Chouaib doukkali, Department of Geology, El Jadida, Morocco, Thomas Funck, Geological Survey of Denmark and Greenland, Copenhagen K, Denmark, Massinissa Benabdellouahed, Kibbutz Maabarot, Israel, Michael Schnabel, BGR, Hannover, Germany, Christian J Reichert, BGR Federal Institute for Geosciences and Natural Resources, Hannover, Germany, Marc-Andre Gutscher, CNRS & University of Brest, Lab Geosciences Ocean, Brest, France, Adrien Bronner, Institut de Physique du Globe, Strasbourg, France and James A Austin Jr, Univ TX Austin-Inst for Geophy, Austin, TX, United States
The Final Continental Breakup and Onset of Oceanic Crust along the Galicia-Newfoundland Margins (280697)
Ara Alexanian1, Julia Morgan2 and Dale S Sawyer1, (1)Rice University, Houston, TX, United States, (2)Rice University, Earth, Environmental and Planetary Sciences, Houston, TX, United States
MARGATS cruise: investigation of the deep internal structure and the heterogeneous margins of the Demerara plateau reveals a polyphased volcanic history (210659)
David Graindorge1, Thomas Museur2, Walter R Roest3, Frauke Klingelhoefer3, Lies Loncke4, Christophe Basile5, Ewald Poetisi6, Jacques Deverchere7, Arnauld Heuret8, Lebrun Jean-Frederic9 and Julie Perrot10, (1)Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR5638, Plouzané, France, (2)IUEM Institut Universitaire Européen de la Mer, Laboratoire Géosciences Océan, Plouzané, France, (3)Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR6538, Plouzané, France, (4)CEFREM Centre de Formation et de Recherche sur les Environnements Méditerranéens, Perpignan, France, (5)ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, (6)Anton de Kom University of Suriname, Paramaribo, Suriname, (7)UBO University, Brest, France, (8)Université de Guyane, Cayenne, French Guiana, (9)UMR 5243 Geosciences Montpellier, Antilles University, Pointe à Pitre, Guadeloupe, (10)University of Western Brittany, Brest, France
Crustal Stretching Style and Lower Crust Flow of the South China Sea Northern Margin (248756)
Yongliang Bai, China University of Petroleum, School of Geosciences, Qingdao, China, Dongdong Dong, Institute of Oceanology, Chinese Academy of Sciences, Key Laboratory of Marine Geology and Environment, Qingdao, China and Du Runlin, Qingdao Institute of Marine Geology, Qingdao, China
Tethys Rifting in the Valencia Trough Basin (271441)
Cesar R Ranero, ICM-CSIC, Barcelona Center for Subsurface Imaging, ICREA at CSIC, Instituto de Ciencias del Mar, Barcelona, Spain, Barcelona, Spain, Alejandra L. Cameselle, CMIMA-CSIC, Barcelona, Spain and Marina Viñas, Instituto de Ciencias del Mar, CSIC, Barcelona Center for Subsurface Imaging, Barcelona, Spain
Preserved organic matter in the Serpentinized Ocean-Continent Transition of Alpine Tethys (223759)
Tsvetomila Mateeva, University of Liverpool, Liverpool, L69, United Kingdom, George A Wolff, University of Liverpool, Liverpool, United Kingdom, Nick Kusznir, University of Liverpool, Department of Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom; University of Liverpool, earth, ocean and ecological sciences, Liveprool, United Kingdom, Gianreto Manatschal, Université de Strasbourg, CNRS, ITES UMR 7063, Strasbourg Cedex, France and John Wheeler, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom

See more of: Tectonophysics