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Geodynamics Division; GSA Marine and Coastal Geoscience T12. Sutures and Suture Zones in the Phanerozoic
Division and Precambrian Orogenic Belts
Disciplines: Tectonics/Tectonophysics, Stratigraphy, Volcanology Endorsers: GSA Structural Geology and Tectonics Division; GSA
Advocates: Michael Darin; Kristin McDougall-Reid; James Geophysics and Geodynamics Division; GSA Geochronology
Jackson; Paul Umhoefer Division; GSA Sedimentary Geology Division; GSA Mineralogy,
This session explores the tectonic, magmatic, sedimentary, and Geochemistry, Petrology, and Volcanology Division; Geological
paleogeographic evolution of the Cascadia arc and forearc system Society of London
from the early Eocene through the Miocene. Examples from anal- Disciplines: Tectonics/Tectonophysics
ogous modern or ancient subduction margins are also encouraged. Advocates: Yildirim Dilek; Andrea Festa
We welcome case studies of sutures–suture zones in Phanerozoic
T8. Intracontinental Tectonics and Orogeny: and Precambrian orogenic belts toward refining the geological,
The Deformation, Fabric Evolution, and Mechanism geophysical, and geochemical criteria for their recognition, and
Endorser: GSA Geophysics and Geodynamics Division better delineating the sites and polarities of ancient convergent
Disciplines: Tectonics/Tectonophysics, Structural Geology, plate boundaries.
Geochronology
Advocate: Yu Wang T13. Tectonics, Climate, and Life: Continental Drift,
Intracontinental tectonics and orogeny have been important Large Igneous Provinces, and Global Change
processes in Earth’s evolution and directly related to environmen- Endorsers: GSA Marine and Coastal Geoscience Division;
tal changes of human beings at present and in the future, which Paleontological Society; GSA Structural Geology and Tectonics
need to be studied fundamentally. Division; GSA Sedimentary Geology Division
Disciplines: Tectonics/Tectonophysics
T9. Late Cretaceous–Eocene (pre-Cascadia) Advocates: Ross Mitchell; Zheng Gong; Richard E. Ernst
Tectonics from the Greater Pacific Northwest The boundary conditions of Earth’s climate constantly change
Margin to the Rocky Mountains and influence biotic evolution. Two tectonic controls on long-term
Endorsers: GSA Geochronology Division; GSA Sedimentary climate are continental drift and large igneous provinces that can
Geology Division; GSA Structural Geology and Tectonics affect life directly or indirectly through climate change.
Division; GSA Geophysics and Geodynamics Division; GSA
Mineralogy, Geochemistry, Petrology, and Volcanology Division T14. Tectonometamorphic Evolution of the
Disciplines: Tectonics/Tectonophysics, Petrology, Igneous, Mediterranean from the End of the Variscan
Stratigraphy Orogeny to Present
Advocates: Paul Umhoefer; Robert B. Miller; Stacia M. Gordon; Endorsers: GSA Geophysics and Geodynamics Division;
Thomas J. Kalakay GSA Geochronology Division
This session explores the tectonic, magmatic, metamorphic, Disciplines: Tectonics/Tectonophysics, Petrology, Metamorphic,
sedimentary, and paleogeographic evolution of the greater Pacific Geochronology
Northwest from the Late Cretaceous to early Eocene, a period of Advocates: Megan Flansburg; Eirini M. Poulaki; Romain Augier
large uncertainty about the regional plate-tectonic setting. The Mediterranean region has remained tectonically complex
since the late Paleozoic. This session aims to highlight novel appli-
T10. Northern Andes Mountain Building: cations of various structural, geophysical, geochemical, and geo-
From Proterozoic to Quaternary chronological methods to answer long-standing tectonic questions
Disciplines: Tectonics/Tectonophysics throughout the Mediterranean.
Advocates: Jorge Gomez Tapias; Ana Maria Patiño Acevedo
This session aims to present any contribution related to the T15. The 100-Ma Event on the Western Margin of
geological framework of the northern Andes, the Caribbean plate, North America
and the Panamá–Chocó Block, from Proterozoic to Quaternary. Endorser: GSA Structural Geology and Tectonics Division
Disciplines: Tectonics/Tectonophysics, Structural Geology,
T11. Recent to Long-Term Slip Histories of Active Petrology, Igneous
Faults and Folds in Cascadia Advocates: Basil Tikoff; Michael L. Wells; Sarah Trevino
Endorsers: GSA Structural Geology and Tectonics Division; There is increasing evidence for a major tectonic event at ca. 100
GSA Structural Geology and Tectonics Division; GSA Geophysics Ma on the western edge of North America. This session will investi-
and Geodynamics Division; GSA Quaternary Geology and gate the timing, kinematics, causes, and effects of this orogenic event.
Geomorphology Division; GSA Geoinformatics and Data Science
Division T16. The Rise of the Andes and the Development of
Disciplines: Tectonics/Tectonophysics, Quaternary Geology, the South American Monsoon: New Perspectives on
Geophysics/Geodynamics Neogene Hydroclimate, Topography, and Ecology
Advocates: Scott Bennett; Elizabeth R. Schermer; Andrew Meigs from Proxies and Models
Active faults and folds in the upper plate of the Cascadia sub- Endorser: GSA Geophysics and Geodynamics Division
duction zone have protracted histories. This session explores geo- Disciplines: Tectonics/Tectonophysics, Paleoclimatology/
logical and geophysical evidence for Eocene to Holocene history Paleoceanography, Stratigraphy
of structures from the Cascadia forearc to backarc. Advocates: Ethan Hyland; Jennifer M. Cotton; Nadja Insel
www.geosociety.org/gsatoday 17