GP43A:
Assigning Chronology to Geologic Processes Using Magnetic Methods II Posters

Submit an Abstract to this Session



Session ID#: 23913

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 the Earth sciences, applicable to a wide variety of sedimentary (but also volcanic) rock types formed in different environments (continental, lacustrine, marine). Relative paleointensity variations observed in younger marine or continental sequences can be used to correlate and assign time at high-resolution. In addition, astronomically-forced climate cycles encoded magnetically 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 understand 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:  Kenneth P Kodama, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States
Convener:  Luigi Jovane, University of Sao Paulo, Oceanographic Institute, Sao Paulo, Brazil
Chairs:  Kenneth P Kodama, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States and Luigi Jovane, Universidade de São Paulo, Instituto Oceanográfico, São Paulo, Brazil
OSPA Liaison:  Luigi Jovane, Universidade de São Paulo, Instituto Oceanográfico, São Paulo, Brazil
Index Terms:

1520 Magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]
1527 Paleomagnetism applied to geologic processes [GEOMAGNETISM AND PALEOMAGNETISM]
1535 Reversals: process, timescale, magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

Eocene tectonic compression in Northern Zealandia: Magneto-biostratigraphic constraints from the sedimentary records of New Caledonia (Southwest Pacific Ocean) (215569)
Edoardo Dallanave1, Claudia Agnini2, Kristina M. Pascher3, Pierre Maurizot4, Valerian Bachtadse5, Christopher John Hollis3, Gerald R Dickens6, Julien Collot7, Brice Sevin7, Dominic Strogen3 and Edoardo Monesi8, (1)Ludwig Maximilians University of Munich, Munich, Germany, (2)University of Padua, Dipartimento di Geoscienze, Padua, Italy, (3)GNS Science, Lower Hutt, New Zealand, (4)Geological Survey of New Caledonia - SGNC/DIMENC, Nouméa, New Caledonia, (5)Ludwig Maximilians Univ, Munich, Germany, (6)Rice Univ, Houston, TX, United States, (7)DIMENC, Geological Survey of New Caledonia, Nouméa, New Caledonia, (8)University of Milan, Department of Earth Sciences 'Ardito Desio', Milan, Italy
Magnetostratigraphy of reef limestones –a case study in Ryukyu Group, Okinawa, Japan– (238084)
Chisato Anai, Kochi Institute for Core Sample Research, Kochi, Japan, Hidetoshi Shibuya, Kumamoto Univ, Kumamoto, Japan and Nobutatsu Mochizuki, Kumamoto University, Kumamoto, Japan
Initial report for magnetostratigraphy of IODP Site U1490 (273455)
Yuho Kumagai1, Robert G Hatfield2, Norihiro Nakamura1, Toshitsugu Yamazaki3 and Expedition 363 Scientists, (1)Tohoku University, Sendai, Japan, (2)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, United States, (3)Atmosphere and Ocean Research Institute University of Tokyo, Tokyo, Japan
Extended Late-Cretaceous Magnetostratigraphy of the James Ross Basin Island, Antarctica (289384)
Thom M Chaffee1, Ross Mitchell2, Prof. Sarah P Slotznick3, Jennifer Buz4, Joseph Biasi5, Joseph O'Rourke6, Frank Sousa6, David Timothy Flannery7, Roger R Fu8 and Joseph L Kirschvink9, (1)California Institute of Technology, Pasadena, United States, (2)Curtin University, Earth Dynamics Research Group, TIGeR, School of Earth and Planetary Sciences, Perth, WA, Australia, (3)Dartmouth College, Hanover, NH, United States, (4)Northern Arizona University, Flagstaff, AZ, United States, (5)California Institute of Technology, Geological and Planetary Sciences, Pasadena, United States, (6)California Institute of Technology, Pasadena, CA, United States, (7)Queensland University of Technology, Brisbane, Australia, (8)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (9)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States
Sub-millimeter scale magnetostratigraphy and environmental magnetism of ferromanganese crusts using a scanning SQUID microscope (248307)
Hirokuni Oda1, Atsushi Noguchi2, Yuhji Yamamoto2, Akira Usui3, Takashi Ito4, Jun Kawai5 and Hironori Takahashi6, (1)National Institute of Advanced Industrial Science and Technology (AIST), Geological Survey of Japan, Tsukuba, Japan, (2)Geol. Surv. Japan, AIST, Research Institute of Geology and Geoinformation, Tsukuba, Japan, (3)Kochi University, Kochi, Japan, (4)Ibaraki University, Faculty of Education, Mito, Japan, (5)Kanazawa Inst Technology, Kanazawa Ishikawa, Japan, (6)Ibaraki University, Mito, Japan
Calibrating the Cretaceous normal superchron with high-precision U-Pb zircon geochronology from Songliao Basin, NE China (291826)
Tiantian Wang, China University of Geosciences Beijing, Beijing, China, Jahandar Ramezani, MIT-EAPS, Cambridge, MA, United States and Chengshan Wang, China University of Geosciences (Beijing), Beijing, China

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