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GSA 2020 ANNUAL MEETING
T15. Building the SZ4D Faulting and Earthquake T19. Tectonics, Climate, and Life: Continental Drift,
Cycles Theme: What Controls Strain Accumulation Large Igneous Provinces, and Global Change
and Release at Subduction Zones? Cosponsors: GSA Marine and Coastal Geoscience Division;
Cosponsors: GSA Structural Geology and Tectonics Division; Paleontological Society; GSA Structural Geology and Tectonics
GSA Geodynamics and Geophysics Division Division; GSA Sedimentary Geology Division
Disciplines: Tectonics/Tectonophysics, Geophysics/Geodynamics, Disciplines: Tectonics/Tectonophysics, Geochronology,
Structural Geology Paleoclimatology/Paleoceanography
Advocates: Christine Regalla; Harold J. Tobin; Melodie French; Advocates: Ross Mitchell; Zheng Gong; Richard E. Ernst
Donna J. Shillington The boundary conditions of Earth’s climate constantly change
This SZ4D session highlights ongoing research across a range and influence biotic evolution. Two tectonic controls on long-term
of geoscience techniques that help further our understanding of climate are continental drift and large igneous provinces that can
the processes that underlie fault- and earthquake-related hazards affect life directly or indirectly through climate change.
in subduction systems.
T20. Topographic and Lithospheric Evolution of
T16. Assembling Laurentia: Growth of the Western Elevated Continental Passive Margins
Continental Margin by Subduction, with or without Cosponsor: GSA Structural Geology and Tectonics Division
Terrane Accretion, 190–70 Ma Disciplines: Tectonics/Tectonophysics, Quaternary Geology,
Cosponsors: Mineralogical Society of America; GSA Mineralogy, Geomorphology
Geochemistry, Petrology, and Volcanology Division; GSA Advocates: Peter J. Haproff; Jaclyn S. Baughman; Michelle Fame
Structural Geology and Tectonics Division; GSA Sedimentary This session is intended to present research on the post-collisional
Geology Division evolution of Phanerozoic orogens including rifting, passive margin
Disciplines: Tectonics/Tectonophysics, Structural Geology, sedimentation, topographic decay, and tectonic reactivation. We
Petrology, Metamorphic welcome contributions from geology, geophysics, thermochronol-
Advocates: Cathy J. Busby; Raphael Gottardi; Elisa Fitz-Diaz ogy, sedimentology, and geomorphology.
This “Assembling Laurentia” session (190–70 Ma) is on the
growth of the North American Cordillera and the opening of the STRUCTURAL GEOLOGY
Gulf of Mexico, including magmatism, metamorphism, sedimen-
tology, structural geology, geochronology, and geophysics. T21. The Geology of Induced Seismicity
Cosponsors: GSA Structural Geology and Tectonics Division;
T17. Evolution, Structure, and Landscapes of the GSA Geophysics and Geodynamics Division; GSA Energy
North Atlantic–Arctic Realm Geology Division
Cosponsors: GSA Geophysics and Geodynamics Division; Disciplines: Structural Geology, Energy Geology, Geoscience and
GSA Structural Geology and Tectonics Division; GSA Quaternary Public Policy
Geology and Geomorphology Division; GSA Sedimentary Advocates: Owen A. Callahan; Folarin Kolawole; Elizabeth Horne
Geology Division In this session, we welcome contributions from those working
Disciplines: Tectonics/Tectonophysics, Geomorphology, to understand seismic hazards by characterizing the geologic
Geophysics/Geodynamics factors contributing to induced seismicity.
Advocates: Christian Schiffer; Scott Jess; Iwona Klonowska;
Alexander Peace; Vivi Pedersen T22. Best Student Geologic Map Competi-
This session will review our knowledge of the geodynamic and tion (Posters)
geomorphological processes from the surface to the upper mantle Cosponsors: Association of American State Geologists; U.S.
acting in the North Atlantic–Arctic region. We welcome contribu- Geological Survey–National Cooperative Geologic Mapping
tions from all geoscientific disciplines. Program; American Geosciences Institute; Geological Society of
America; GSA Foundation; American Institute of Professional
T18. Hot Rocks: High-Temperature Microstructures Geologists; Journal of Maps; GSA Structural Geology and
from Mantle to Surface Tectonics Division
Cosponsors: GSA Structural Geology and Tectonics Division; Disciplines: Structural Geology, Geomorphology, Stratigraphy
GSA Geochronology Division; GSA Geophysics and Geodynamics Advocates: Michael Marketti; Darcy K. McPhee
Division Students will present their research through geologic mapping proj-
Disciplines: Tectonics/Tectonophysics, Structural Geology, ects that have a significant field component that addresses scientific
Geochronology or societal issues. The top three geologic maps will be awarded.
Advocates: Morgan E. Monz; Hannah J. Blatchford; Zachary D.
Michels T23. A Multidisciplinary View of Brittle Structures
This session highlights research on high-homologous–temperature in Layered Rock
microstructures, with diverse applications including reconstructing Cosponsor: GSA Structural Geology and Tectonics Division
lithospheric viscous flow, glacier and ice sheet dynamics, and recrys- Disciplines: Structural Geology, Stratigraphy, Tectonics/
tallization of mineral chronometers. We seek contributions based on Tectonophysics
field, experimental, and modeling approaches. Advocates: Hannah B. Riegel; John Hooker

20 GSA Today | May 2020