GP34A:
Chronostratigraphy Using Magnetic Methods I


Submit an Abstract to this Session


Session ID#: 56733

Session Description:
Paleomagnetic and rock 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 and correlation tool in the Earth sciences, applicable to a wide variety of sedimentary rock types formed in different environments (continental, lacustrine, marine). Astronomically-forced climate cycles encoded rock magnetically have enabled high-resolution time calibration of sedimentary sequences from the Neogene to the Precambrian. These techniques allow improvement of the GPTS, better dating of the geological record, increased understanding of paleoclimatic and paleoenvironmental changes, and resolution of sedimentation dynamics in tectonically active basins. This session invites contributions that use magnetostratigraphy to date and correlate sedimentary sequences and rock magnetic methods to assign high-resolution chronostratigraphy to sedimentary sequences. We would also welcome studies that integrate magnetic chronostratigraphy 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
Conveners:  Linda A Hinnov, George Mason University Fairfax, Atmospheric, Oceanic, and Earth Sciences, Fairfax, VA, United States and Luigi Jovane, Oceanographic Institute of the University of São Paulo, Department of Fisical Oceanography, São Paulo, Brazil
Primary Liaison:  Kenneth P Kodama, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States
Chairs:  Kenneth P Kodama, Lehigh University, Department of Earth and Environmental Sciences, Bethlehem, PA, United States and Linda A Hinnov, George Mason University Fairfax, Atmospheric, Oceanic, and Earth Sciences, Fairfax, VA, United States
OSPA Liaison:  Linda A Hinnov, George Mason University Fairfax, Atmospheric, Oceanic, and Earth Sciences, Fairfax, VA, United States
Index Terms:

1520 Magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]
1527 Paleomagnetism applied to geologic processes [GEOMAGNETISM AND PALEOMAGNETISM]
1535 Reversals: process, timescale, magnetostratigraphy [GEOMAGNETISM AND PALEOMAGNETISM]
1540 Rock and mineral magnetism [GEOMAGNETISM AND PALEOMAGNETISM]

Abstracts Submitted to this Session:

Integrated paleomagnetic, 40Ar/39Ar, and U-Pb constraints on the first hominin migration out of Africa at 2.48 Ma (434240)
Giancarlo Scardia1, Fabio Parenti2, Daniel P Miggins3, Axel Gerdes4, Astolfo G. M. Araujo5 and Walter A. Neves5, (1)Universidade Estadual Paulista (UNESP), Sao Paulo, Brazil, (2)Universidade Federal do Paraná, Curitiba, Brazil, (3)Oregon State University, Corvallis, OR, United States, (4)Goethe University Frankfurt, Frankfurt Isotope and Element Research Center (FIERCE), Frankfurt am Main, Germany, (5)Universidade de São Paulo, São Paulo, Brazil
A NEW MIDDLE EOCENE MARINE SECTION FROM ELAZIĞ PROVINCE, CENTRAL TURKEY: NEW PALEOCEANOGRAPHIC AND PALEOCLIMATIC CONSTRAINTS ON THE MIDDLE EOCENE CLIMATIC OPTIMUM (Invited) (383772)
Daniel Rodelli1, Luigi Jovane2, Martino Giorgioni3, Ercan Özcan4, Rodolfo Coccioni5, Fabrizio Frontalini6, György Less7, James R Hein8, Lucy Gomes Sant'Anna3, Rita Catanzariti9, Masoud A. Rostami10, Andrea Brogi11 and Eric Siciliano Rego12, (1)Universidade de São Paulo, São Paulo, Brazil, (2)Oceanographic Institute of the University of São Paulo, Department of Fisical Oceanography, São Paulo, Brazil, (3)USP University of Sao Paulo, São Paulo, Brazil, (4)Istanbul Technical University, Maslak, Turkey, (5)University of Urbino, Urbino, Italy, (6)Università degli Studi di Urbino “Carlo Bo”, Dipartimento di Scienze Pure e Applicate, Urbino, Italy, (7)University of Miskolc, Miskolc, Hungary, (8)U.S. Geological Survey, Santa Cruz, CA, United States, (9)Consiglio Nazionale dele Ricerche (CNR), Istituto di Geoscienze e Georisorse, Pisa, Italy, (10)University of Florida, Gainesville, FL, United States, (11)University of Bari Aldo Moro, Bari, Italy, (12)University of California San Diego, La Jolla, United States
Stratigraphic Correlation of Seismo-Turbidites in Japan Trench using Paleomagnetic Secular Variation (389981)
Toshiya Kanamatsu, Japan Agency for Marine-Earth Science and Technology, Research Institute for Marine Geodynamics, Kanagawa, Japan and Ken Ikehara, Geological Survey of Japan, AIST, Tsukuba, Japan
Assessing Orbital Forcing in the Tropical Andes: Developing a 700 kyr paleointensity assisted chronology for ICDP drilling in Lake Junín, Peru (414873)
Robert G Hatfield1, Katharine Solada2, Brendan T Reilly3, Joseph Stephen Stoner2, Mark B Abbott4, Donald T Rodbell5, Arielle Woods4, David McGee6 and Christine Y. Chen7, (1)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, United States, (2)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (3)Oregon State University, College of Earth, Ocean and Atmospheric Sciences, Corvallis, OR, United States, (4)University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States, (5)Union College, Geosciences, Schenectady, United States, (6)Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, Cambridge, United States, (7)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, United States
Paleomagnetism in Lake Pannon; Problems, Pitfalls, and Progress in using iron sulfides for magnetostratigraphy (355535)
Mark J Dekkers, Utrecht University, Paleomagnetic Laboratory, Fort Hoofddijk, Utrecht, Netherlands, Nick A. Kelder, University of Utrecht, Depart of Earth Sciences, Utrecht, Netherlands, Karin Sant, Utrecht University, Department of Earth Sciences, Utrecht, Netherlands, Imre Magyar, MTA-MTM-ELTE Research Group for Paleontology, Budapest, Hungary, Orsolya Sztanó, Eötvös Loránd University, Department of Physical and Applied Geology, Budapest, Hungary and Wout Krijgsman, Utrecht Univ, Utrecht, Netherlands
A ~34 m.y. astronomical time scale for the uppermost Mississippian through Pennsylvanian of the Carboniferous System (Invited) (356793)
Huaichun Wu1, Qiang Fang1, Xiangdong Wang2, Linda A Hinnov3, Yuping Qi2, Shuzhong Shen4, Tianshui Yang5, Haiyan Li1, Jitao Chen2 and Shihong Zhang1, (1)China University of Geosciences (Beijing), State Key Laboratory of Biogeology and Environmental Geology, Beijing, China, (2)Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, China, (3)George Mason University Fairfax, Atmospheric, Oceanic, and Earth Sciences, Fairfax, VA, United States, (4)Nanjing University, School of Earth Sciences and Engineering, Nanjing, China, (5)China University of Geosciences, Beijing, China
New Ladinian Magnetostratigraphy from Dolomites (Italy): An Improvement of the Geomagnetic Polarity Timescale of the Triassic (366497)
Matteo Maron1, Giovanni Muttoni1, Manuel Rigo2, Piero Gianolla3 and Dennis V Kent4,5, (1)University of Milan, Department of Earth Sciences 'Ardito Desio', Milan, Italy, (2)University of Padova, Department of Geosciences, Padova, Italy, (3)University of Ferrara, Department of Physics and Earth Sciences, Ferrara, Italy, (4)Lamont-Doherty Earth Observatory of Columbia University, Palisades, United States, (5)Rutgers University, Department of Earth and Planetary Sciences, Piscataway, United States

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