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Pardee Keynote Symposia

All sessions will take place at the Minneapolis Convention Center, 1301 Second Avenue South, Minneapolis, Minnesota 55403 USA.

Pardee Keynote Symposia are special, interdisciplinary events representing the leading edge of a scientific discipline or area of public policy and addressing broad, fundamental issues in the geosciences. Selection is on a competitive basis. This year's eight Pardee Symposia were reviewed and accepted by the Annual Program Committee; all speakers are invited.

The Pardee Keynote Symposia are made possible by a grant from the Joseph T. Pardee Memorial Fund.

Pardee keynote Symposia

P1. The Frontiers of Quaternary Geochronology: Extension or Overextension of Dating Methods for Quaternary Geology and Geomorphology?
Sponsored by GSA Quaternary Geology and Geomorphology Division; GSA Archaeological Geology Division; American Quaternary Association; Association of Women Geoscientists; Colorado Scientific Society
Sun., 9 Oct.: 8 a.m.–noon
Kenneth Lepper, +1-701-231-6746; Shannon A. Mahan
A formidable array of Quaternary geochronological techniques has developed at a rapid pace; not within the last fifty years, but within the last decade. The intent of this symposium is to bring together established scientists who have been instrumental in methodological developments for or applications of radiocarbon, optically stimulated luminescence, and cosmogenic nuclide dating as well as researchers who are now striving to take those techniques a step beyond. The latest advances will be placed in a context that will allow both seasoned professionals and students to scrutinize the techniques and evaluate their utility for future projects.
Quaternary Geology; Geomorphology; Archaeological Geology
[ view abstracts in this session ]
P2. Honoring British Geologist Arthur Holmes (1890–1965) for Contributions to Geochronology, Plate Tectonics, and the Origin of Granite
Sponsored by Geological Society London; GSA International Section; International Association of GeoChemistry; GSA History and Philosophy of Geology Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Structural Geology and Tectonics Division
Sun., 9 Oct.: 1:30–5:30 p.m.
Russell S. Harmon, +1-919-622-8415; Jon Davidson
This session will honor British geologist Arthur Holmes (1890–1965) who 100 years ago, while still an undergraduate student, established the technique to date rocks by the radioactive decay of U to Pb. Holmes also made highly significant contributions to the study of the origin of granite and to plate tectonics.
Geochemistry; History and Philosophy of Geology; Tectonics
[ view abstracts in this session ]
P3. Exploration of the Deep Biosphere
Sponsored by GSA Geobiology & Geomicrobiology Division
Mon., 10 Oct.: 8–noon
Brandy M. Toner, +1-612-624-1362; Jeffrey Gralnick
Current uncertainty in the distribution, activity, and ecology of microbial species in the deep biosphere is vast. This GSA session is dedicated to highlighting advances in deep biosphere research in terrestrial and marine settings. Presentations in this session will highlight geomicrobiology, microbial ecology, physiology, and biogeography of deep, subsurface environments. Speakers will be encouraged to discuss development of field-based and theoretical observatories, as well as the application of new in situ technologies for measurements, sample collection, and experimentation.
Geomicrobiology
[ view abstracts in this session ]
P4. Rare Earth Elements and Critical Minerals for a Sustainable and Secure Future
Sponsored by GSA Geology and Society Division; GSA Geology and Public Policy Committee; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division
Mon., 10 Oct.: 1:30–5:30 p.m.
Craig Schiffries, +1-202-669-0466
Widespread deployment of clean energy technologies can reduce greenhouse gas emissions, mitigate climate change, and reduce dependence on foreign oil. Many emerging technologies — such as wind turbines, solar cells, and electric vehicles — depend on rare earth elements (REEs) and other scarce elements that currently lack diversified sources of supply. For example, China accounts for 95% of the world production of rare earth elements although, according the U.S. Geological Survey, it has only 36% of identified world reserves. This session explores REEs and critical minerals in the context of emerging energy technologies and recent legislation and reports.
Public Policy; Economic Geology
[ view abstracts in this session ]
P5. The EarthScope Program: Recent Results and Future Projects
Sponsored by GSA Geophysics Division; GSA Structural Geology and Tectonics Division; GSA Geoinformatics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division
Tue., 11 Oct.: 8 a.m.–noon
Matthew J. Fouch, +1-480.965.9292; Kevin Mickus; Paul A. Bedrosian
The EarthScope program is a continental-scale geophysical and geological experiment to study the lithosphere of the United States. To date, several experiments involving broadband seismology, long-period magnetotellurics, the Plate Boundary Observatory, and the San Andreas Fault Observatory at Depth have investigated over half the lithosphere of the lower 48 states. The USArray seismic component is working its way eastward and is currently within the central United States. This session will highlight the research of all components of EarthScope. The design of future experiments in the central and eastern United States will also be detailed.
Geophysics/Tectonophysics/Seismology; Tectonics; Public Policy
[ view abstracts in this session ]
P6. Prairie Ice Streams
Sponsored by GSA Quaternary Geology and Geomorphology Division
Tue., 11 Oct.: 1:30–5:30 p.m.
Carrie E. Jennings, +1-612-627-4780; Martin A. Ross; B. Brandon Curry
Session leaders are interested in understanding the deglacial dynamics and impact of terrestrial ice streams, ancient and modern. Questions concern how they propagate up-ice and at what rates they draw down their catchment areas; how the evolution is reflected in the sediment record down-ice; what basal conditions allow ice streams to maintain momentum and form lobes; how the record of subglacial conditions is preserved in the sediment and landforms; how the ultimate stagnation of the lobe affects the dynamics of the tributary ice streams; and how lobe stagnation affects local climate, including permafrost, ecosystems, and groundwater recharge.
Quaternary Geology; Paleoclimatology/Paleoceanography; Geomorphology
[ view abstracts in this session ]
P7. Earth's Early Atmosphere and Surface Environment
Wed., 12 Oct.: 8 a.m.–noon
Robert O. Pepin, +1-612 624-0819; George H. Shaw
Investigations of the chemical state of Earth's early surface and atmosphere have been guided by geological evidence, cosmochemical analysis, and comparisons to other terrestrial bodies. This session will provide for presentation and discussion of several, often contradictory, models for the early Earth.
Precambrian Geology; Geochemistry; Planetary Geology
[ view abstracts in this session ]
P8. Global Water Sustainability
Sponsored by Mineralogical Society of Americal; Geochemical Society
Wed., 12 Oct.: 1:30–5:30 p.m.
Martin B. Goldhaber, +1-303-236-1521; John B. Brady; Chen Zhu
This session will address the full spectrum of present and future issues and challenges facing humanity's requirement for water, its most critical resource.
Hydrogeology; Environmental Geoscience; Public Policy
[ view abstracts in this session ]

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