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25–28 OCTOBER • MONTRÉAL, QUÉBEC, CANADA
This section will cover brittle structures that occur in layered rock. Disciplines: Structural Geology, Geochronology, Petrology,
This includes topics such as fracture pattern evolution, fault zone Metamorphic
architecture, and hydraulic properties of brittly deformed rock layers. Advocates: Tarryn K. Cawood; Alexander Dmitri Lusk; Nicolas
M. Roberts
T24. Building the SZ4D Landscapes and Sea- How are you investigating crystal plastic shear zones? Through
scapes Theme: Geomorphic Change and Crustal your approach, what have you discovered about their formation,
Deformation from the Volcanic Arc, across the evolution, and reactivation? Disciplinarily diverse contributions are
Forearc, and to the Trench welcome in this session focused on how to approach complex shear
Cosponsors: GSA Structural Geology and Tectonics Division; GSA zone problems.
Quaternary Geology and Geomorphology Division; GSA Marine
and Coastal Geoscience Division; GSA Sedimentary Geology T28. Linking Fault Zone Deformation
Division; GSA Environmental and Engineering Geology Division Processes, Kinematic Indicators, and Geochronol-
Disciplines: Structural Geology, Geomorphology, Marine/Coastal ogy through the Brittle and Brittle-Ductile Regimes
Science of the Earth’s Crust
Advocates: Kristin Morell; Karen B. Gran; Juliet G. Crider; Cosponsors: GSA Structural Geology and Tectonics Division;
Nathan A. Niemi GSA Geochronology Division; GSA Hydrogeology Division;
This SZ4D session highlights ongoing research across a range of Canadian Tectonics Group; U.S. Geological Survey
geoscience disciplines that further our understanding of the pro- Disciplines: Structural Geology, Tectonics/Tectonophysics,
cesses that drive topographic change, influence sediment flux, and Geochronology
generate related hazards in subduction settings, on- and off-shore. Advocates: James Kirkpatrick; Dawn Kellett; Margaret Odlum;
Jonathan Saul Caine
T25. Advances in Digital Field Methods for Geologic Advances in geo-thermo-chronometry facilitate integrated stud-
Research, Mapping, and Education ies of deformation mechanisms, kinematics, timing, and associ-
Cosponsors: GSA Structural Geology and Tectonics Division; ated processes in crustal fault zones. Field, analytical, numerical,
GSA Geoinformatics and Data Science Division; GSA Quaternary and experimental studies providing holistic understanding of these
Geology and Geomorphology Division; GSA Marine and Coastal structures are encouraged.
Geoscience Division; GSA Sedimentary Geology Division
Disciplines: Structural Geology, Tectonics/Tectonophysics, PRECAMBRIAN GEOLOGY
Geoscience Information/Communication
Advocates: Andrew V. Zuza; Nicholas C. Barth; Seth M. Dee T29. Life’s Innovations from the Early Earth to the
Modern geologic field research increasingly uses technological Search on Modern Mars: Honoring the Career of
methods to document field observations, including tablet-based Andrew H. Knoll
mapping and structure-from-motion photogrammetry, which Cosponsors: Paleontological Society; GSA Geobiology and
allow for efficient, high-resolution data tabulation. This session Geomicrobiology Division; GSA Planetary Geology Division;
will focus on applications of cutting-edge digital methods for both GSA Sedimentary Geology Division; SEPM (Society for
research and education. Sedimentary Geology); Geochemical Society
Disciplines: Precambrian Geology, Paleontology, Diversity,
T26. Structural Geology and Tectonics Division 40th Extinction, Origination, Geochemistry
Anniversary Symposium: Drivers of Orogenesis Advocates: Julie K. Bartley; C. Kevin Boyce; Linda C. Kah;
Cosponsors: GSA Structural Geology and Tectonics Division; Alan J. Kaufman; Shuhai Xiao
GSA Geophysics and Geodynamics Division; GSA Mineralogy, The modern sweep of geobiology will be covered from the
Geochemistry, Petrology, and Volcanology Division; GSA emergence of Precambrian microbial metabolisms through
Quaternary Geology and Geomorphology Division eukaryotic evolution and the Cambrian Explosion to the influence
Disciplines: Structural Geology, Tectonics/Tectonophysics, of the Phanerozoic biota on global cycles to martian exploration.
Geophysics/Geodynamics
Advocates: Juliet G. Crider; Nancye H. Dawers; Eric Cowgill; T30. Assembling Laurentia: Neoarchean Crust
J Ramón Arrowsmith; Paul J. Umhoefer Formation and Cratonization
How do we conceptualize and evaluate the energy budgets of Cosponsors: Mineralogical Society of America; GSA Mineralogy,
orogenic events? Posters are encouraged to accompany three key- Geochemistry, Petrology, and Volcanology Division; GSA
note talks addressing this question and observational constraints Geophysics and Geodynamics Division; GSA Sedimentary Geology
from the lower crust to Earth’s surface. Division; GSA Structural Geology and Tectonics Division
Disciplines: Precambrian Geology, Tectonics/Tectonophysics,
T27. Approaches for Extracting Shear Zone Petrology, Igneous
History from the Ductile Rock Record: Probing Advocates: Ben M. Frieman; Carol D. Frost; Paul A. Mueller
Their Initiation, Evolution, and Reactivation The session will focus on Neoarchean growth and cratonization
Cosponsors: GSA Structural Geology and Tectonics Division; of the continental nuclei that amalgamated to form Laurentia in
GSA Mineralogy, Geochemistry, Petrology, and Volcanology the Paleoproterozoic, including production of voluminous granit-
Division; GSA Geochronology Division oids, accretion of juvenile material, and the role of recycling.

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