PP44A:
Chronostratigraphic Advances Integrating Paleomagnetism, Tephra, Climate Correlation, and Other Stratigraphic and Proxy Methods to Solve Earth System Processes and Events I

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Session ID#: 33940

Session Description:
The temporal/geographic context for geologic events is dependent on understanding the capabilities and limitations of chronostratigraphic methods.  We highlight recent advances in chronostratigraphy with examples from two time intervals: the radiocarbon era (0-50ka) and the Late Triassic through Early Jurassic.  The last 50ka spans abrupt environmental changes and periods warmer/colder than preindustrial times. However, in many archives, the exact timing of paleoenvironmental events is uncertain due to the availability of radiocarbon-datable materials, variability in reservoir ages, and other complications.  The Late Triassic through Early Jurassic witnessed seminal biotic, climatic, and tectonic events against a backdrop of generally elevated CO2, conjoined continents, and nascent modern ecosystems. Recent drilling campaigns and field expeditions are providing highly temporally resolved records that provide a spatially extensive context for environmental change.  In both cases, integrating diverse stratigraphic methods can address uncertainties and offer the temporal framework ultimately needed to provide context for the modern world.
Primary Convener:  Brendan T Reilly, UC San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States
Conveners:  Jessica Hope Whiteside, University of Southampton, Southampton, United Kingdom, Lloyd D Keigwin, Woods Hole Oceanographic Institution, Woods Hole, United States and Morgan F Schaller, Rensselaer Polytechnic Institute, Troy, NY, United States
Chairs:  Brendan T Reilly, UC San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Jessica Hope Whiteside, University of Southampton, Southampton, United Kingdom
OSPA Liaison:  Jessica Hope Whiteside, University of Southampton, Southampton, United Kingdom

Cross-Listed:
  • B - Biogeosciences
  • GP - Geomagnetism, Paleomagnetism and Electromagnetism
Index Terms:

1115 Radioisotope geochronology [GEOCHRONOLOGY]
1527 Paleomagnetism applied to geologic processes [GEOMAGNETISM AND PALEOMAGNETISM]
1535 Reversals: process, timescale, magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]
4994 Instruments and techniques [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

Environmental and ecological upheval in shallow marine systems during the Early Jurassic (Pliensbachian and Toarcian) (Invited) (214879)
Rowan C Martindale1, Nicholas Patrick Ettinger1, Stéphane Bodin2, Adrijan Kosir3, Hannah-Maria R Brame1, Alyson M Thibodeau4, Toti E Larson5 and Charles Kerans6, (1)The University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, (2)Aarhus University, Department of Geoscience, Aarhus C, Denmark, (3)Ivan Rakovec Institute of Palaeontology, Research Center of the Slovenian Academy of Arts and Sciences, Ljublijana, Slovenia, (4)Dickinson College, Earth Sciences, Carlisle, PA, United States, (5)The University of Texas at Austin, Bureau of Economic Geology, Jackson School of Geosciences, Austin, TX, United States, (6)University of Texas at Austin, Jackson School of Geosciences, Austin, TX, United States
Testing the age calibration of the Newark-Hartford APTS by magnetostratigraphic correlation of U-Pb zircon-dated tuffaceous beds in the Late Traissic Chinle Formation in core PFNP-1A from the Petrified Forest National Park (Arizona, USA) (214230)
Dennis V Kent1,2, Paul E Olsen3, Roland Mundil4, Christopher J Lepre2 and CPCP Science Team, (1)Rutgers University, Department of Earth and Planetary Sciences, Piscataway, United States, (2)Lamont -Doherty Earth Observatory, Paleomagnetics Lab, Palisades, NY, United States, (3)Lamont-Doherty Earth Observatory, Palisades, NY, United States, (4)Berkeley Geochronology Center, Berkeley, United States
U-Pb Geochronology of non-marine Upper Triassic strata of the Colorado Plateau (western North America): implications for stratigraphic correlation and paleoenvironmental reconstruction (266123)
Cornelia Rasmussen, University of Utah, Salt Lake City, UT, United States, Roland Mundil, Berkeley Geochronology Center, Berkeley, United States, Randall B Irmis, Natural History Museum of Utah, Salt Lake City, UT, United States, C. Brenhin Keller, Berkeley Geochronology Center, Berkeley, CA, United States, Dominique Giesler, University of Arizona, Tucson, AZ, United States, George E Gehrels, University of Arizona, Department of Geosciences, Tucson, AZ, United States and CPCP Science Party
A potential new proxy for paleo-atmospheric pO2 from soil carbonate-hosted fluid inclusions applied to pristine Chinle soils from the Petrified Forest 1A core (287348)
Morgan F Schaller, Elizabeth Pettitt and Todd Knobbe, Rensselaer Polytechnic Institute, Troy, NY, United States
The radiocarbon reservoir age of the Chukchi Sea, Arctic Ocean (Invited) (214648)
Christof Pearce1, Richard Gyllencreutz2, Gabriel West1, Matt O'Regan1 and Martin Jakobsson1, (1)Stockholm University, Department of Geological Sciences, Stockholm, Sweden, (2)Stockholm University, Stockholm, Sweden
Surface Ocean Radiocarbon Reservoir Ages From Land-Sea Tephra Correlation Constrains Deglacial Chronology and Ocean Circulation in the Southeast Bering Sea (295928)
Mea S Cook1, Roberta Beck Connolly Miller1, Caroline White-Nockleby1, Alice Chapman1 and Alan C Mix2, (1)Williams College, Geosciences, Williamstown, MA, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States
Development of a Process Based Paleomagnetic Secular Variation Dating Curve for the Northern Hemisphere Through the Radiocarbon Interval (291823)
Joseph Stephen Stoner1, Brendan T Reilly2, Maureen H Walczak3, Alan C Mix4, Nickolas Lavoie1, Julie Heggdal Velle5, Guillaume St-Onge5 and Chuang Xuan6, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (2)UC San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Oregon State University, College of Earth, Ocean, and Atmospheric Science, Corvallis, United States, (4)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (5)Institut des sciences de la mer de Rimouski (ISMER) and GEOTOP, Rimouski, Canada, (6)National Oceanography Center, Liverpool, United Kingdom

See more of: Paleoceanography and Paleoclimatology