T11B:
Observations and Models of Multiphase Deformation in Rifts and Rifted Margins I


Submit an Abstract to this Session


Session ID#: 57083

Session Description:
Observations from rifts and rifted margins suggest continental extension commonly involves multiple phases of deformation with distinct structural, sedimentary and magmatic characteristics. In many rifts, deformation evolves both as a function of time and location, and rift architecture may reflect the influence of structural inheritance, evolution of the lithosphere’s thermal-mechanical profile, feedbacks between surface process and lithospheric deformation or large-scale changes in plate driving forces. Here, we solicit presentations that examine the long-term evolution of continental rift systems through field, geophysical and numerical investigations. In particular, we encourage submissions that focus on the processes driving changes in deformation style and use large 3-D observational or numerical data sets to characterize lithospheric deformation.
Primary Convener:  John Naliboff, University of California Davis, Davis, CA, United States; University of California, Davis, Computational Infrastructure for Geodynamics (CIG), Earth and Planetary Sciences Department, Davis, CA, United States
Conveners:  Rebecca E Bell, Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, Jolante van Wijk, New Mexico Institute of Mining and Technology, Earth & Environmental Science, Socorro, United States and Scott E K Bennett, USGS, Geology Minerals Energy and Geophysics Science Center, Menlo Park, CA, United States
Primary Liaison:  John Naliboff, University of California, Davis, Computational Infrastructure for Geodynamics (CIG), Earth and Planetary Sciences Department, Davis, CA, United States; University of California Davis, Davis, CA, United States
Chairs:  Jolante van Wijk, New Mexico Institute of Mining and Technology, Earth & Environmental Science, Socorro, United States and John Naliboff, University of California, Davis, Computational Infrastructure for Geodynamics (CIG), Earth and Planetary Sciences Department, Davis, CA, United States; University of California Davis, Davis, CA, United States
OSPA Liaison:  John Naliboff, University of California, Davis, Computational Infrastructure for Geodynamics (CIG), Earth and Planetary Sciences Department, Davis, CA, United States; University of California Davis, Davis, CA, United States
Index Terms:

8105 Continental margins: divergent [TECTONOPHYSICS]
8109 Continental tectonics: extensional [TECTONOPHYSICS]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8159 Rheology: crust and lithosphere [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Towards universal controls on extensional processes from observations of temporal and spatial heterogeneity in ancient and active rifts (Invited) (448401)
Donna J Shillington, Columbia University of New York, Palisades, NY, United States
Spatial and Temporal Variations in Crustal Kinematics Across the Lake Tanganyika Rift, East Africa. (375936)
Lachlan JM Wright1, James D Muirhead1 and Christopher A Scholz2, (1)Syracuse University, Earth Sciences, Syracuse, NY, United States, (2)Syracuse University, Earth and Environmental Sciences, Syracuse, NY, United States
Comparing Active and Time-Averaged Deformation Patterns in Cratonic Rifts: A Western rift, Africa Case Study (424045)
Cynthia J Ebinger1, Aude Lavayssiere2, Connor Drooff3, Ryan James Gallacher4,5, Finnigan Illsley-Kemp6,7, Sarah Jaye C Oliva5, Derek Keir8,9 and Thi Quan Hoang Pham10, (1)Tulane University, School of Science & Engineering, New Orleans, United States, (2)University of Southampton, Southampton, United Kingdom, (3)Michigan State University, East Lansing, MI, United States, (4)International Seismological Centre, Thatcham, United Kingdom, (5)Tulane University of Louisiana, New Orleans, United States, (6)Victoria University of Wellington, Wellington, New Zealand, (7)Victoria University of Wellington, School of Geography, Environment and Earth Science, Wellington, New Zealand, (8)University of Southampton, Ocean and Earth Sciences, Southampton, United Kingdom, (9)University of Florence, Department of Earth Sciences, Florence, Italy, (10)Tulane University of Louisiana, Earth and Environmental Sciences, New Orleans, LA, United States
Red Sea Multiphase Deformation: Implications of early rifting delocalization on the Arabian Margin present-day deformation field (382759)
Thamer Aldaajani, Pennsylvania State University, Department of Geosciences, University Park, PA, United States, Kevin P Furlong, Pennsylvania State University, Department of Geosciences, University Park, United States, Rocco Malservisi, University of South Florida, School of Geosciences, Tampa, FL, United States and Matthew W Herman, California State University Bakersfield, Department of Geological Sciences, Bakersfield, CA, United States
Strain migration and transition during multiphase rifting: Observations from the Zhu 1 Depression, Pearl River Mouth Basin, South China Sea (457843)
Shihao Hao1, Lianfu Mei1, Peng Deng1, Jiayuan Du2 and Xinming Xu2, (1)China University of Geosciences Wuhan, Wuhan, China, (2)Shenzhen Branch of the China National Offshore Oil Corporation, Shenzhen, China
Making Northern Zealandia: The Breakup of Eastern Gondwana (382333)
Brian Boston1, Flora Gallais1, Yasuyuki Nakamura1, Gou Fujie1, Shuichi Kodaira1, Seiichi Miura2, Ron I Hackney3, Yuka Kaiho1, Kan Aoike1 and Saneatsu Saito4, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, (3)Geoscience Australia, Canberra, Australia, (4)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
Structural style and evolution of multi-phase rifts: Examples from the northern North Sea Rift (Invited) (359311)
Robert Gawthorpe1, Thomas B Phillips1,2, Hamid Fazli Khani1, Haakon Fossen1, Rebecca E Bell2, Christopher Aiden-Lee Jackson2, Thilo Wrona1, Johan S Claringbould2, Antje Lenhart2 and Jan Inge Faleide3, (1)University of Bergen, Department of Earth Science, Bergen, Norway, (2)Imperial College London, Department of Earth Science and Engineering, London, United Kingdom, (3)University of Oslo, Department of Geosciences, Oslo, Norway

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