T13B:
Characterization of Oceanic Crust: Ridge to Trench Evolution I Posters

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Session ID#: 12936

Session Description:
Although the nature of oceanic crust has been studied for decades, significant gaps remain in our ability to characterize crustal structure based on spreading rate, age, and region. The intent of this session is to host a compilation of research on the nature of oceanic crust across the full range of crustal ages and spreading rates incorporating geophysical, drilling and dredge or submersible sample data. We hope to attract work from various crustal ages and spreading rates, as well as data types, so that we might begin to build a systematic characterization of crustal geophysical properties. We encourage submissions focused on topics such as layer 2 and 3, lower crustal dipping reflectors (LCDRs), abyssal hill spacing, deep crustal structure, and crustal thickness.
Primary Convener:  Robert Reece, Texas A&M University, Geology and Geophysics, College Station, TX, United States
Conveners:  Gail Lynn Christeson, UTIG, Austin, United States and Richard L Carlson, Texas A&M University, Geology & Geophysics, College Station, TX, United States
Chairs:  Richard L Carlson, Texas A&M University, Geology & Geophysics, College Station, TX, United States and Gail Lynn Christeson, UTIG, Austin, United States
OSPA Liaison:  Robert Reece, Texas A&M University, Geology and Geophysics, College Station, TX, United States

Cross-Listed:
  • MR - Mineral and Rock Physics
  • OS - Ocean Sciences
  • S - Seismology
  • V - Volcanology, Geochemistry and Petrology
Index Terms:

3025 Marine seismics [MARINE GEOLOGY AND GEOPHYSICS]
3036 Ocean drilling [MARINE GEOLOGY AND GEOPHYSICS]
3075 Submarine tectonics and volcanism [MARINE GEOLOGY AND GEOPHYSICS]
7220 Oceanic crust [SEISMOLOGY]

Abstracts Submitted to this Session:

The Presence and Characterization of Antarctic Bottom Water Located Between the Mid-Atlantic Ridge and the Rio Grande Rise (137638)
Ryan Henry Miller1, Robert Reece2, Justin Estep1, Gail Lynn Christeson3 and Tanner Michael Acquisto1, (1)Texas A&M University College Station, College Station, TX, United States, (2)Texas A&M University, Geology and Geophysics, College Station, TX, United States, (3)UTIG, Austin, United States
Seismic Imaging of Ocean Structure in the Vicinity of the Mid-Atlantic Ridge (141751)
Tanner Michael Acquisto1, Robert Reece2, Justin David Estep3, Gail Lynn Christeson4 and Ryan Henry Miller1, (1)Texas A&M University College Station, College Station, TX, United States, (2)Texas A&M University, Geology and Geophysics, College Station, TX, United States, (3)University of Arkansas, Fayetteville, United States, (4)UTIG, Austin, United States
An Analysis of Variation in Abyssal Hill Geomorphology in the South Atlantic Ocean (139349)
Anastasia Fedotova1, John Goff2, Robert Reece3, Gail Lynn Christeson4, Justin David Estep5, Richard L Carlson6, Grant Bonnette7 and Jordan Skipwith7, (1)Southern Methodist University, Dallas, TX, United States, (2)University of Texas at Austin, Institute for Geophysics, Jackson School of Geosciences, Austin, TX, United States, (3)Texas A&M University, Geology and Geophysics, College Station, TX, United States, (4)UTIG, Austin, United States, (5)University of Arkansas, Fayetteville, United States, (6)Texas A&M University, Geology & Geophysics, College Station, TX, United States, (7)Texas A&M University College Station, College Station, TX, United States
Variations in Crustal Structure and Thickness for South Atlantic Oceanic Crust (150928)
Gail Lynn Christeson, UTIG, Austin, United States, Robert Reece, Texas A&M University, Geology and Geophysics, College Station, TX, United States and Richard L Carlson, Texas A&M University, Geology & Geophysics, College Station, TX, United States
Layer 2A in 70 Ma Old Oceanic Crust: Velocity Analysis in the Western South Atlantic Ocean (141269)
Dominik Alexander Kardell, University of Texas at Austin, Institute for Geophysics, Austin, TX, United States; Institute for Geophysics, Austin, TX, United States, Gail Lynn Christeson, UTIG, Austin, United States, Robert Reece, Texas A&M University, Geology and Geophysics, College Station, TX, United States, Richard L Carlson, Texas A&M University, Geology & Geophysics, College Station, TX, United States and Adrien F Arnulf, Institute for Geophysics, Austin, United States
The Perisistence and Evolution of Seismic Layer 2A in a 70 MYR Continuous Transect in Slow-Intermediate Spreading South Atlantic Oceanic Crust (131235)
Justin David Estep1, Robert Reece2, Gail Lynn Christeson3 and Richard L Carlson1, (1)Texas A&M University, Geology & Geophysics, College Station, TX, United States, (2)Texas A&M University, Geology and Geophysics, College Station, TX, United States, (3)UTIG, Austin, United States
Structural variations of layer 2A from 0 to 75 Ma old oceanic crust formed at the slow spreading Mid-Atlantic Ridge (156504)
Pranav Audhkhasi and Satish Chandra Singh, Institut de Physique du Globe de Paris, Paris, France
Reorganization and Rotation of Oceanic Crust at the Mid-Atlantic Ridge near 16 30N (162124)
Deborah K Smith1, Ross E Parnell-Turner2 and Hans Schouten1, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, University of California San Diego, La Jolla, United States
Constraining the Location of the Azores Plume Using Mantle Geodynamical Models (164137)
Jennifer E Georgen, Old Dominion University, Norfolk, VA, United States
Time-dependent changes in magmatic and hydrothermal activity at the Costa Rica Rift recorded by variations in oceanic crustal structure (140575)
Dean J Wilson1, Christine Peirce1, Richard W Hobbs1, Emma P M Gregory1 and Ling Zhang2, (1)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (2)University College London, London, United Kingdom
An Assessment of Magma-Hydrothermal Heat Output at the Costa Rica Rift (142138)
Robert P Lowell, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States, Miguel Angel Morales Maqueda, National Oceanography Centre, Liverpool, United Kingdom, Donata Banyte, Newcastle University, School of Marine Science and Technology, Newcastle upon Tyne, United Kingdom, Ling Zhang, University College London, London, United Kingdom, Vincent C H Tong, University College London, Arena Centre for Research-based Education, Department of Earth Sciences, London, United Kingdom, Richard W Hobbs, University of Durham, Department of Earth Sciences, Durham, United Kingdom and Robert N Harris, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
New Marine Heat Flow measurements at the Costa Rica Rift, Panama Basin (138979)
Robert N Harris1, Kannikha Parameswari Kolandaivelu2, Emma P M Gregory3, Redha Alshafai3, Robert P Lowell4 and Richard W Hobbs5, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (2)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, (3)University of Durham, Durham, United Kingdom, (4)Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States, (5)University of Durham, Department of Earth Sciences, Durham, United Kingdom
Analysis of a Conductive Heat Flow Profile in the Ecuador Fracture Zone (182638)
Kannikha Parameswari Kolandaivelu1, Robert N Harris2, Ahmed Alhamad3, Emma P M Gregory3, Robert P Lowell4 and Richard W Hobbs5, (1)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (3)University of Durham, Durham, United Kingdom, (4)Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States, (5)University of Durham, Department of Earth Sciences, Durham, United Kingdom
Understanding Fracturing and Alteration at ODP Borehole 504B: 3D Seismic Structure and Anisotropy of 5.9 Ma Oceanic Crust (140714)
Emma P M Gregory1, Richard W Hobbs1, Christine Peirce1, Dean J Wilson1 and Ling Zhang2, (1)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (2)University College London, London, United Kingdom
Origin of Lower Crustal Reflectors Found in Mature Fast-spreading Crust in the Eastern Pacific. (158696)
Ryan Scott, NERC British Antarctic Survey, Cambridge, United Kingdom and Timothy Henstock, University of Southampton, Southampton, SO14, United Kingdom
Lithosphere Flexure at Pacific Trenches: Relating Bending Moment to Seafloor Age (182883)
Emmanuel Soliman M Garcia1,2, David T Sandwell1 and Dan Bassett1, (1)University of California San Diego, La Jolla, CA, United States, (2)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
Structural Variation of the Oceanic Moho in the Pacific Plate Revealed from Active-Source Seismic Data (146845)
Akane Ohira1,2, Shuichi Kodaira1,2, Yasuyuki Nakamura3, Gou Fujie2, Ryuta Arai4 and Seiichi Miura2, (1)Yokohama National University, Yokohama, Japan, (2)R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan, (3)R&D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokohama, Japan, (4)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Subduction Dynamics Research Center, Yokohama, Japan
In Search of Relationships Between Seismic Properties and Lihologic Units; Shifting the Focus from Boundaries to the Intervals Between Seismic & Lithologic Transitions (151874)
Richard L Carlson, Texas A&M University, Geology & Geophysics, College Station, TX, United States
Reactive Hydrothermal Flow Model for Mid-Oceanic Ridges (199171)
Jesse Lev Starger, Tufts University, Medford, MA, United States, Grant Garven, Tufts University, Earth and Ocean Sciences, Medford, MA, United States and Margaret K Tivey, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry Department, Woods Hole, United States
Imaging hydrothermal roots along the Endeavour segment of the Juan de Fuca ridge using elastic full waveform inversion. (190125)
Adrien F Arnulf, Institute for Geophysics, Austin, United States, Alistair J Harding, University of California San Diego, La Jolla, CA, United States and Graham M Kent, Nevada Seismological Lab, University of Nevada Reno, Reno, NV, United States
Three-dimensional Simulations of Hydrothermal Circulation in Faulted Ocean Crust (138730)
Esther Adelstein1, Andrew T Fisher1, Carl W Gable2 and Phil H Stauffer3, (1)University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States, (2)Los Alamos National Laboratory, Earth and Environmental Sciences Division, Los Alamos, NM, United States, (3)Los Alamos National Laboratory, Los Alamos, United States
Joint Inversion for VP/VS Structure of the Upper Oceanic Crust beneath the Endeavour Segment of the Juan de Fuca Ridge (198266)
Eunyoung Kim1, Douglas R Toomey2, Emilie E E Hooft, PhD3, William S D Wilcock4, Robert T Weekly5, Sang-Mook Lee6 and Younghee Kim6, (1)Seoul National University, Seoul, Korea, Republic of (South), (2)University of Oregon, Eugene, OR, United States, (3)University of Oregon, Department of Earth Sciences, Eugene, OR, United States, (4)University of Washington Seattle Campus, School of Oceanography, Seattle, United States, (5)Incorporated Research Institutions for Seismology, Data Managment Center, Seattle, WA, United States, (6)Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South)

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