T33E:
Origin, Architecture, and Dynamics of Extensional Basins II

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Session ID#: 16589

Session Description:
This session presents recent advances in our understanding of the formation and evolution of sedimentary basins, from rifts and passive margins to cratonic basins, within which rests more than a hundred million years of geological history. This session will present studies from surface to deep: sedimentology to seismology (and all the disciplines in between). The accumulated sediments, the petrology and chemistry of basaltic rocks and the present day seismic structure of the crust and upper mantle are partial records of this evolving system. In this session we aim to bring together research that generates, models and interprets these various observational constraints. Key open questions include: What factors decide whether break-up takes place? What is the role of mantle plumes and volcanism? How do extensional systems link and record climate changes, erosion and deposition? What causes localization of rifting, segment boundaries, transfer zones, and pull apart basins?
Primary Convener:  John J Armitage, Institute de Physique du Globe de Paris, Paris, France
Conveners:  Jolante van Wijk, New Mexico Institute of Mining and Technology, Earth & Environmental Science, Socorro, United States, Carolina Pagli, University of Sydney, EarthByte Group, Sydney, Australia and David Ferguson, Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States
Chairs:  John J Armitage, Institute de Physique du Globe de Paris, Paris, France and Jolante van Wijk, New Mexico Institute of Mining and Technology, Earth & Environmental Science, Socorro, United States
OSPA Liaison:  Carolina Pagli, University of Sydney, EarthByte Group, Sydney, Australia

Cross-Listed:
  • EP - Earth and Planetary Surface Processes
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

8109 Continental tectonics: extensional [TECTONOPHYSICS]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8169 Sedimentary basin processes [TECTONOPHYSICS]
8178 Tectonics and magmatism [TECTONOPHYSICS]

Abstracts Submitted to this Session:

High-angle faults control the geometry and morphology of the Corinth Rift (Invited) (123508)
Rebecca E Bell1, Guillaume Duclaux2, Casey Nixon3, Robert Gawthorpe3 and Lisa Clare McNeill4, (1)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (2)CSIRO, North Ryde, Australia, (3)University of Bergen, Department of Earth Science, Bergen, Norway, (4)University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom
Localization and Evolution of a Rift-Scale Segmented Normal Fault in a Volcanic Environment: The Hat Creek Fault, Northern California (153117)
Simon A Kattenhorn1, Erin Walker2, Robert W Krantz3, Matthew W Blakeslee2 and James D Muirhead2,4, (1)University of Alaska Anchorage, Geological Sciences, Anchorage, AK, United States, (2)University of Idaho, Geological Sciences, Moscow, ID, United States, (3)ConocoPhillips Company Houston, Houston, TX, United States, (4)Syracuse University, Earth Sciences, Syracuse, NY, United States
Cold rocks make more melt: Numerical models of melt generation during continental extension (142498)
Joshua Kane Davis, Lamont-Doherty Earth Observatory, Palisades, NY, United States and Luc Lavier, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States
3D imaging of the rifting and breakup west of Spain and the nature of the S detachment (159958)
Reston J Tim1, Gael Lymer2, Derren Cresswell3, Carl Stevenson3, Dale S Sawyer4, Jonathan M Bull5, Timothy A Minshull6, Cesar R Ranero7 and Donna J Shillington8, (1)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, B15, United Kingdom, (2)University of Birmingham, Birmingham, B15, United Kingdom, (3)University of Birmingham, Birmingham, United Kingdom, (4)Rice University, Houston, TX, United States, (5)University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom, (6)University of Southampton, Southampton, SO14, United Kingdom, (7)ICM-CSIC, Barcelona Center for Subsurface Imaging, ICREA at CSIC, Instituto de Ciencias del Mar, Barcelona, Spain, Barcelona, Spain, (8)Columbia University of New York, Palisades, NY, United States
Faults control the flux of water into the Earth during continental breakup (Invited) (156140)
Gaye Bayrakci1, Timothy A Minshull1, Dale S Sawyer2, Timothy J Reston3, Dirk Klaeschen4, Cord A Papenberg4, Cesar R Ranero5, Jonathan Bull6, Richard Davy6, Donna J Shillington7, Marta Perez-Gussinye8,9 and Julia Morgan2, (1)University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom, (2)Rice University, Houston, TX, United States, (3)University of Birmingham, Birmingham, United Kingdom, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (5)Institució Catalana de Recerca i Estudis Avançats, ICREA, Barcelona, Spain, Barcelona, Spain, (6)University of Southampton, Ocean and Earth Science, Southampton, United Kingdom, (7)Columbia University of New York, Palisades, NY, United States, (8)Royal Holloway University of London, Department of Earth Sciences, Egham, United Kingdom, (9)MARUM - University of Bremen, Centre for Marine Environmental Sciences, Bremen, Germany
Strain-dependent serpentinization: new insights from the Porcupine Basin, offshore Ireland (161297)
Manel Prada1, Louise Watremez2, Chen Chen3, Brian M. O'Reilly4, Timothy A Minshull3, Reston J Tim5, Patrick Shannon6, Dirk Klaeschen7, Gerlind Wagner8 and Viola Gaw8, (1)Dublin Institute for Advanced Studies, Geosphysics Section, Dublin, Ireland, (2)University of Southampton, Southampton, United Kingdom, (3)University of Southampton, Southampton, SO14, United Kingdom, (4)Dublin Institute for Advanced Studies, Dublin, Ireland, (5)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, B15, United Kingdom, (6)University College Dublin, School of Earth Sciences, Dublin, Ireland, (7)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (8)Geomar Helmholtz Centre for Ocean Research, Kiel, Germany
Exploring contrasts between fast and slow rifting (157776)
Albert de Montserrat Navarro1, Jason Phipps Morgan1, Robert Hall2 and Lloyd T White1, (1)Royal Holloway University of London, Egham, United Kingdom, (2)Royal Holloway University of London, Egham, TW20, United Kingdom
Translation and rotation of small crustal blocks in the southernmost Atlantic-Weddell Sea region prior to seafloor spreading: in search of a mechanism (142617)
Ian W D Dalziel1, Ian O Norton2, Lawrence A Lawver3, Luc Lavier1, Joshua Kane Davis4 and Lisa Gahagan5, (1)University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (2)University of Texas, Austin, TX, United States, (3)The University of Texas at Austin, Institute for Geophysics, Austin, TX, United States, (4)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (5)Univ Texas - Inst Geophys, Austin, TX, United States

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