GC001
Advances and applications in Quaternary geochronology

Session ID#: 79646

Session Description:
Reconstructing climate and environmental change throughout the Quaternary relies on precise and accurate chronologies to determine sequences of events. Inter-chronometer calibration is often critical, as no one dating approach can be applied to all geological archives. Although radiocarbon dating continues to be pivotal in providing chronological control over the last 50,000 years, other geochronological techniques (e.g., cosmogenic isotopes, tephrochronology, astronomical dating, luminescence dating, palaeomagnetism, Ar/Ar dating, U-series) have become increasingly essential for the accurate and precise reconstruction of Quaternary climatic evolution, both within and beyond the timescales accessed with radiocarbon.  This session welcomes contributions that (1) aim to reduce and/or quantify uncertainties in any Quaternary dating method, including high-resolution radiocarbon, (2) improve geochronological methods to define and answer new questions about Quaternary climate evolution, and (3) combine different chronometric techniques to reconstruct the timescales of Earth system change during the Quaternary.
Index Terms:

1105 Quaternary geochronology [GEOCHRONOLOGY]

Primary Convener:  Darren F Mark, Scottish Universities Environmental Research Center at the University of Glasgow, East Kilbride, United Kingdom
Conveners:  Marissa M Tremblay, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States, Courtney Sprain, University of Liverpool, Department of Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom and Noah McLean, University of Kansas, Kansas, United States
Primary Liaison:  Darren F Mark, SUERC, East Kilbride, United Kingdom
 
Pre-LGM chronological framework of the Quaternary sediment package in the North Sea Basin (490025)
Teena Chauhan1, Hans Petter Sejrup1, Berit Oline B. Hjelstuen1 and Darrell S Kaufman2, (1)University of Bergen, Department of Earth Science, Bergen, Norway, (2)Northern Arizona University, School of Earth and Sustainability, Flagstaff, AZ, United States
 
Evaluating the temporal range of 230Th/U burial dating of ostrich eggshell, a new chronometer for Pleistocene terrestrial strata (Invited) (491634)
Elizabeth M Niespolo1,2, Warren D. Sharp1, Christian A Tryon3, Nicholas Fylstra1,4, Simon James Armitage5, Graham Avery6, J. Tyler Faith7, Christopher Henshilwood8, Richard Klein9, Jason E. Lewis10, Alex Mackay11, Kathryn L. Ranhorn12, Teresa Steele13, Karen Van Niekerk8 and Giday W WoldeGabriel14,15, (1)Berkeley Geochronology Center, Berkeley, CA, United States, (2)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (3)Harvard University, Anthropology Department, Cambridge, MA, United States, (4)University of Calgary, Chemistry, Calgary, AB, Canada, (5)Royal Holloway, Egham, United Kingdom, (6)Iziko Museums of South Africa, Cape Town, South Africa, (7)University of Utah, Salt Lake City, United States, (8)University of Bergen, Bergen, Norway, (9)Stanford University, Anthropology, Stanford, CA, United States, (10)Stony Brook University and Turkana Basin Institute, Stony Brook, NY, United States, (11)University of Wollongong, Wollongong, Australia, (12)Arizona State University, Tempe, AZ, United States, (13)University of California, Davis, Anthropology, Davis, CA, United States, (14)Los Alamos Natl Lab, Los Alamos, NM, United States, (15)Newport News Nuclear BWXT/Tetra Tech, Los Alamos, NM, United States
 
Combined quantification of post-glacial bedrock erosion and surface exposure duration by coupling OSL and 10Be dating (494718)
Benjamin Lehmann1, Frederic Herman2, Pierre Valla3, Georgina E King4, Rabiul Biswas1, Susan Ivy-Ochs5, Olivia Kronig6 and Marcus Christl7, (1)University of Lausanne, Institute of Earth Surface Dynamics, Lausanne, Switzerland, (2)University of Lausanne, Lausanne, Switzerland, (3)University Grenoble Alpes, Grenoble, France, (4)University of Lausanne, Aberystwyth, United Kingdom, (5)ETH Zurich, Institute for Particle Physics, Zurich, Switzerland, (6)ETHZ, Institute for Particle Physics, Zurich, Switzerland, (7)ETH Zurich, Laboratory of Ion Beam Physics, Zurich, Switzerland
 
Comparing 40Ar/39Ar and Unspiked K-Ar Geochronology for Zao Volcano, NE Japan (505476)
Seiko Yamasaki, GSJ, AIST, Ibaraki, Japan, Daniel P Miggins, Oregon State University, Corvallis, OR, United States and Anthony Koppers, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Glacial History of Inglefield Land, North Greenland using Radiocarbon Dating and 10Be, 26Al and in-situ 14C Exposure Dating (511651)
Anne Sofie Søndergaard, Aarhus University, Aarhus C, Denmark, Nicolaj K Larsen, University of Aarhus, Aarhus, Denmark, Jesper Olsen, Aarhus University, Aarhus, Denmark, Kurt Henrik Kjaer, Natural History Museum, Copenhagen, Denmark and Svend Funder, Geological Museum – University of Copenhagen, Copenhagen, Denmark
 
Leveraging astrochronology of Quaternary geomagnetic reversals and excursions to constrain accuracy and precision of the 40Ar/39Ar chronometer (512319)
Bradley S Singer1, Brian R Jicha1 and James E T Channell2, (1)University of Wisconsin Madison, Madison, WI, United States, (2)University of Florida, Ft Walton Beach, FL, United States
 
A Bayesian approach to deconvolving 40Ar/39Ar data from multi-component mixtures (515092)
Jack Carter, Scottish Universities Environmental Research Center at the University of Glasgow, East Kilbride, United Kingdom, Marissa M Tremblay, Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States and Darren Mark, ERC Argon Isotope Facility, Scottish Universities Environmental Research Centre, East Kilbride, United Kingdom
 
A new cosmogenic nuclide (10Be) record for reconstructing Holocene glacier change in the Eastern European Alps (Austria) (515327)
Sandra M. Braumann1, Joerg Schaefer2, Stephanie Neuhuber1, Christopher Luethgens1, Jürgen Reitner3 and Markus Fiebig1, (1)BOKU University of Natural Resources and Life Sciences, Vienna, Austria, (2)Columbia University, Lamont-Doherty Earth Observatory, New York, NY, United States, (3)Geological Survey of Austria, Vienna, Austria
 
230Th/U Burial Dating of Ostrich Eggshell: Initial Tests of a Novel Pleistocene Geochronometer (525710)
Warren D. Sharp1, Christian A Tryon2, Elizabeth M Niespolo1,3, Nick D. Fylstra1, Alka Tripathy-Lang1 and J. Tyler Faith4, (1)Berkeley Geochronology Center, Berkeley, CA, United States, (2)Harvard University, Anthropology Department, Cambridge, MA, United States, (3)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (4)University of Utah, Salt Lake City, United States
 
The 700-kyr Sediment Record of Lake Junín, Peru: Lessons for U-Th Dating Lake Sediments (527172)
Christine Y. Chen1,2, Arielle Woods3, David McGee1, Robert G Hatfield4, Liseth Perez5, Sophie B Lehmann3, R. Lawrence Edwards6, Blas Lorenzo Valero-Garces7, Joseph Stephen Stoner4, Antje Schwalb5, Irit Tal1, Mark B Abbott3 and Donald T Rodbell8, (1)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States, (2)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (3)University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States, (4)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, (5)Technical University of Braunschweig, Braunschweig, Germany, (6)University of Minnesota Twin Cities, Dept. of Earth Sciences, Minneapolis, MN, United States, (7)IPE-CSIC, Zaragoza, Spain, (8)Union College, Schenectady, NY, United States
 
Chronostratigraphy of long lacustrine sedimentary records from Tasmania, Australia (528712)
Agathe Lise-Pronovost, University of Melbourne, School of Earth Sciences, Melbourne, Australia, Michael-Shawn Fletcher, University of Melbourne, School of Geography, Melbourne, Australia, Quentin Simon, CEREGE, Aix en Provence, France, Zenobia Jacobs, University of Wollongong, School of Earth, Atmospheric and Life Sciences, Wollongong, Australia, David Heslop, The Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia and Maarten Blaauw, Queens University Belfast, School of Natural and Built Environment, Belfast, United Kingdom
 
Reliability Assessment of Bulk Radiocarbon Dating (542079)
Astrid Strunk1, Jesper Olsen2, Nicolaj K Larsen3, Hamed Sanei4 and Anne Sofie Søndergaard1, (1)Aarhus University, Aarhus C, Denmark, (2)Aarhus University, Aarhus, Denmark, (3)University of Aarhus, Aarhus, Denmark, (4)Aarhus University, Department of Geoscience, Aarhus C, Denmark
 
Dynamic Time Warping of Paleomagnetic Secular Variation (PSV) Data: Building Libraries of Objective and Reproducible Correlations for Northern North Atlantic Sedimentary Records (561802)
Brendan T Reilly, Cedric Hagen, Joseph S Stoner and Jessica R Creveling, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
An Empirical Age Model of Sediment Cores in the South China Sea based on Varimax-Rotated Principal Components Analysis of the Ship-Board Diffuse Reflectance Spectroscopy Data (565752)
Hui-Juan Pan, NTOU National Taiwan Ocean University, Keelung, Taiwan, Joseph D. Ortiz, Kent State University, Department of Geology, Kent, OH, United States and Min-Te Chen, Qingdao National Laboratory for Marine Science and Technolog, Laboratory for Marine Geology, QingDao, China; National Taiwan Ocean University, Keelung, Taiwan
 
U-series Isotopics of Silts from Taylor Valley, Antarctica: Applying Comminution Dating Methods on Polar Desert Tills and Implications for the Timeframe of Valley Incision (589237)
Graham Harper Edwards, Terrence Blackburn, Gavin Piccione and Slawek M Tulaczyk, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States
 
Effects of sediment sample packing and radon loss on the precise measurement of gamma-ray emitting environmental short-lived radionuclides (595963)
Max Allen Denny1, Mark M Baskaran1 and Gi-Hoon Hong2, (1)Wayne State University, Detroit, MI, United States, (2)KIOST Korea Institute of Ocean Science and Technology, Ansan, Korea, Republic of (South)
 
Utilizing Pedogenic Iron-oxides for Cosmogenic 3He Geochronology of Soils (599518)
Florian Hofmann, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, Devin McPhillips, U.S. Geological Survey, Pasadena, CA, United States, Katherine J Kendrick, U.S. Geological Survey, Earthquake Science Center, Pasadena, CA, United States and Kenneth A Farley, California Institute of Technology, Pasadena, CA, United States
 
Inferring sediment dynamics using single-grain feldspar post-IR IRSL luminescence dating in southern California, North America (605817)
Sourav Saha, University of California Los Angeles, Los Angeles, CA, United States; Northern Kentucky University, Department of Physics, Geology, and Engineering Technology, Highland Heights, KY, United States, Seulgi Moon, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, Nathan Brown, University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States and Edward Rhodes, University of Sheffield, Department of Geography, Sheffield, S10, United Kingdom; University of California Los Angeles, Department of Earth, Planetary and Space Sciences, Los Angeles, CA, United States
 
36Cl exposure-age chronology of Late Pleistocene glaciations on Mount Tymphi, Pindus Mountains, northwest Greece (622333)
James Allard1, Philip Hughes2, Jamie Woodward2, David Fink3, Krista Simon4 and Klaus Wilcken3, (1)University of Manchester, Manchester, M13, United Kingdom, (2)University of Manchester, Manchester, United Kingdom, (3)Australian Nuclear Science and Technology Organization, Kirrawee, NSW, Australia, (4)Australian Nuclear Science and Technology Organization, Sydney, Australia
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