GP51D:
Magnetic Methods and New Developments in Magnetostratigraphy to Assign Chronology of Geological Processes II

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Session ID#: 15738

Session Description:
Magnetic methods are important for assigning both absolute and relative time to geological sequences. Magnetostratigraphy and correlation to the Geological Polarity Time Scale (GPTS) constitute a standard dating tool in Earth sciences, applicable to a wide variety of sedimentary (but also volcanic) rock types formed under different environmental conditions (continental, lacustrine, marine). Relative paleointensity variations observed in younger marine or continental sequences can be used to correlate and assign time at high-resolution. Recently, astronomically-forced climate cycles have enabled high-resolution time calibration of sedimentary sequences from the Neogene to the Precambrian. This session invites contributions that use magnetic methods to improve the GPTS, better date the geological record, help understanding paleoclimatic and paleoenvironmental changes, and resolve sedimentation dynamics in tectonically active basins. We would especially welcome studies that integrate magnetostratigraphy with isotopic dating, bio-, cyclo- and chemostratigraphic records.
Primary Convener:  Luigi Jovane, University of Sao Paulo, Oceanographic Institute, Sao Paulo, Brazil
Conveners:  Wout Krijgsman, Utrecht University, Paleomagnetic Laboratory “Fort Hoofddijk”, Utrecht, Netherlands, Kenneth P Kodama, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States and Rixiang Zhu, Institute of Geology and Geophysics, Chinese Academy of Sciences, State Key Laboratory of Lithospheric Evolution, Beijing, China
Chairs:  Luigi Jovane, University of Sao Paulo, Oceanographic Institute, Sao Paulo, Brazil and Rixiang Zhu, Institute of Geology and Geophysics, Chinese Academy of Sciences, State Key Laboratory of Lithospheric Evolution, Beijing, China
OSPA Liaison:  Luigi Jovane, University of Sao Paulo, Oceanographic Institute, Sao Paulo, Brazil

Cross-Listed:
  • GC - Global Environmental Change
Index Terms:

1135 Correlative geochronology [GEOCHRONOLOGY]
1165 Sedimentary geochronology [GEOCHRONOLOGY]
1520 Magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]
1535 Reversals: process, timescale, magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

“Complexity” in Polarity Transitions at the Matuyama-Brunhes Boundary and top Jaramillo in North Atlantic Deep-sea Sediments (177435)
James E T Channell, Univ. Florida, Geological Sciences, Gainesville, United States
Developing a High-Resolution Paleointensity Assisted Chronology Through the Matuyama-Brunhes Transitional Interval (0.7 to 1.25 Ma) for the NE Pacific From IODP Expedition 341, Sites U1417 and U1418 (180011)
Joseph Stephen Stoner, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Ann E. Morey, Oregon State University, Corvallis, OR, United States, Alan C Mix, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, Julie Heggdal Velle, Université du Québec à Rimouski, Rimouski, QC, Canada, Guillaume St-Onge, University of Quebec at Rimouski UQAR, Rimouski, QC, Canada, Shulan Ge, First Institute of Oceanography, State Oceanic Administration, Department of Marine Geology, Qingdao, China, Hirofumi Asahi, Korea Polar Research Institute, Incheon, Korea, Republic of (South) and IODP Expedition 341 Scientific Party
A new constraint for Matuyama-Brunhes geomagnetic boundary age based on U-Pb zircon dating and a high-resolution oxygen isotope chronology in highly resolved marine sediments in Japan (137289)
Yusuke Suganuma1, Makoto Okada2, Yuuki Haneda2, Kenji Horie1 and Osamu Kazaoka3, (1)NIPR National Institute of Polar Research, Tokyo, Japan, (2)Ibaraki University, Mito, Japan, (3)Research Institute of Environmental Geology, Chiba, Japan
A revised magnetostratigraphic time frame for the Mio-Pliocene of the Eastern Paratethys domain (177150)
Wout Krijgsman, Utrecht University, Paleomagnetic Laboratory “Fort Hoofddijk”, Utrecht, Netherlands and Dan Palcu, University of Sao Paulo, Sao Paulo, United States
Rock Magnetic Cyclostratigraphy of the Mississippian Mauch Chunk fm, Pottsville, Pennsylvania (124207)
Kenneth P Kodama, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States
Radio-bio-cyclo-magneto-stratigraphy solves longstanding problems of the global Triassic: astronomically paced aquifer-eustasy, interregional platform correlation, and geologic time (Invited) (175903)
Linda A Hinnov1, Mingsong Li2 and Chunju Huang2, (1)George Mason University, Atmospheric, Oceanic, and Earth Sciences, Fairfax, VA, United States, (2)China University of Geosciences Wuhan, Wuhan, China
Magnetostratigraphy of Upper Permian to Lower Triassic (?) Beaufort Group Strata, Karoo Basin, South Africa: Can We “See Through” the Karoo Large Igneous Province event? (Invited) (143147)
John W Geissman, University of Texas at Dallas, Department of Geosciences, Richardson, TX, United States, Robert A. Gastaldo, Colby College, Department of Geology, Waterville, ME, United States and Johann Neveling, Council for Geosciences, Pretoria, South Africa
Magnetostratigraphy of late Devonian carbonates of Western Australia: Integrating reversal history with biostratigraphic and 13C records (145909)
Eric Tohver1, Ted Playton2, Kelly Hillbun3, Maodu Yan4, Sergei Pisarevsky5, Jeroen Hansma1, Brett Roelofs6, Kate Trinajstic6, Joseph L Kirschvink7 and Peter Haines8, (1)University of Western Australia, Crawley, WA, Australia, (2)Chevron Corporation Houston, Houston, TX, United States, (3)University of Washington Seattle Campus, Seattle, WA, United States, (4)ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, (5)Earth Dynamics Research Group, ARC Centre of Excellence for Core to Crust Fluid Systems (CCFS) and The Institute for Geoscience Research (TIGeR), School of Earth and Planetary Sciences, Curtin University, Perth, Australia, (6)Curtin University, ARC Centre of Excellence for Core to Crust Fluid Systems (CCFS) and The Institute for Geoscience Research (TIGeR), Department of Applied Geology, Perth, WA, Australia, (7)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, (8)Geol Survey West Australia, East Perth, WA, Australia

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