V31G:
Resolving Process through Geochronology: New Techniques, Applications, and Interpretations I


Session ID#: 9001

Session Description:
Geochronology is one of the cornerstones of Earth science as it establishes a primary record of absolute time, the fundamental independent variable for all geologic processes. Advances in geochronological methods are providing unprecedented insight into such processes: improvements in sampling, analytical precision, cross-method integration, and contextualization of dates with complementary geochemical and petrologic constraints now permit the resolution of geologically-meaningful variability on previously inaccessible spatial, temporal, and compositional scales. We solicit contributions that employ novel techniques, methodologies and models for both producing and interpreting high spatial/temporal-resolution geochronological datasets. Relevant contributions include but are not limited to topics ranging from: 1) timescales of continental crust formation/differentiation, 2) ashbed geochronology and the calibration of Earth history, 3) deformation/cooling of the lithosphere, 4) volcanism, 5) integrated field-laboratory studies, 6) mass spectrometric innovations, and 7) multi-method analytical workflows.
Primary Convener:  C. Brenhin Keller, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States
Conveners:  Christopher J Spencer, Curtin University, Dept of Applied Geology, Perth, WA, Australia and Terrence Blackburn, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States
Chairs:  C. Brenhin Keller, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States and Kyle M Samperton, Princeton University, Princeton, NJ, United States
OSPA Liaison:  C. Brenhin Keller, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States
Co-Sponsor(s):
  • GS: Geochemical Society - Geochemical Society
Index Terms:

1115 Radioisotope geochronology [GEOCHRONOLOGY]
1120 Isotopic disequilibrium dating [GEOCHRONOLOGY]
1140 Thermochronology [GEOCHRONOLOGY]
1145 Tephrochronology [GEOCHRONOLOGY]

Abstracts Submitted to this Session:

It's About Time: How Accurate Can Geochronology Become? (70199)
T. Mark Harrison, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, Suzanne Baldwin, Syracuse University, Earth Sciences, Syracuse, NY, United States, Marc W Caffee, Purdue University, Department of Physics and Astronomy, West Lafayette, IN, United States, George E Gehrels, University of Arizona, Department of Geosciences, Tucson, AZ, United States, Blair Schoene, Princeton University, Department of Geosciences, Princeton, NJ, United States, David L Shuster, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States and Brad S Singer, University of Wisconsin-Madison, Madison, United States
Records of magmatic change as preserved in zircon: examples from the Yellowstone Volcanic Field (Invited) (65542)
Tiffany A Rivera, Westminster College, Salt Lake City, United States
Setting A Stopwatch for Post-Caldera Effusive Rhyolite Eruptions at Yellowstone caldera, Wyoming (Invited) (58414)
Christy B. Till, Arizona State University, School of Earth & Space Exploration, Tempe, AZ, United States, Jorge A Vazquez, U.S. Geological Survey, Menlo Park, United States and Jeremy W Boyce, University of California Los Angeles, Los Angeles, CA, United States
Little and Large: Implications for Preservation of Radiogenic-Pb in Titanite. An example from the Albany–Fraser Orogen, Australia (64014)
Christopher Kirkland, Curtin University, Perth, WA, Australia
Dating Kimberlite Eruption and Erosion Phases Using Perovskite, Zircon, and Apatite (U-Th)/He Geochronology to Link Cratonic Lithosphere Evolution and Surface Processes (70271)
Jessica R Stanley, University of Colorado at Boulder, Boulder, CO, United States and Rebecca Marie Flowers, Univ of Colorado at Boulder, Department of Geological Sciences, Boulder, United States
Whole-Rock 40Ar/39Ar Step-heating Analyses, Problems and Potential (Invited) (70753)
Patrick Boehnke1, T. Mark Harrison2, Matthew Thomas Heizler3, Oscar M Lovera2 and Paul H Warren4, (1)Eta Vision, Chicago, IL, United States, (2)University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (3)New Mexico Institute of Mining and Technology, Bureau of Geology and Mineral Resources, Socorro, NM, United States, (4)University of California Los Angeles, Los Angeles, CA, United States
Evaluation of Zircon Entrainment in Megacrystic Granites by Micro Drill Sampling and High-Precision in situ U-Pb Geochronology (78026)
Aku Heinonen1, Irmeli Mänttäri2, O. Tapani Rämö1, Tom Andersen3 and Kirsi Larjamo1, (1)University of Helsinki, Helsinki, Finland, (2)Geological Survey of Finland, Espoo, Finland, (3)University of Oslo, Oslo, Norway
Application of geochronology/geochemistry of zircon in understanding the construction of the Peninsular Range Batholith (81429)
Andrew R Kylander-Clark, University of California Santa Barbara, Earth Science, Santa Barbara, United States and Scott M Johnston, California Polytechnic State University San Luis Obispo, San Luis Obispo, CA, United States
The Gas-Filled-Magnet at PRIME Lab: Increased Sensitivity of Cosmogenic Nuclide Measurements (68790)
Marc W Caffee1,2, Darryl E Granger3 and Thomas E Woodruff1, (1)Purdue University, Department of Physics and Astronomy, West Lafayette, IN, United States, (2)Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States, (3)Purdue University, Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States

See more of: Volcanology, Geochemistry and Petrology