Published by the American Geophysical Union as part of the Geophysical Monograph Series, Volume 145.To mark the 70th birthday of Neil D. Opdyke, a Chapman Conference entitled "Timescales ofthe Internal Geomagnetic Field" was held at the University of Florida in Gainesville on March 9-11, 2003. This AGU Chapman Conference was sponsored by the U.S. National Science Foundation, University of Florida, Florida Museum of Natural History, and 2G Enterprises. Forty-one talks and twenty-three posters were presented during the three-day meeting. This monograph contains twenty-four of those papers, and is a balanced subset ofthe papers presented at the conference. The monograph is divided into three parts. Part 1 deals with the geocentric axial dipole (GAD) hypothesis, continental reconstruction, and long-term geomagnetic field behavior. Part 2 comprises papers on magnetic polarity stratigraphy and the acquisition of sedimentary magnetization. Part 3 deals with secular variation, paleointensity, and short-term geomagnetic field behavior. These are all topics that have been substantially impacted by Neil's scientific work.
James E. T. Channell and Dennis V. Kent are the authors of Timescales of the Paleomagnetic Field, published by Wiley.
PrefaceJames E. T. Channell, Dennis V Kent, William Lowrie, and Joseph C. Meert viiPart 1. The Geocentric Axial Dipole (GAD) Hypothesis, Continental Reconstruction andLong-Term Geomagnetic Field BehaviorGeocentric Axial Dipole Hypothesis: A Least Squares PerspectiveMichael McElhinny 1The Case for Pangea B, and the Intra-Pangean MegashearE. Irving 13The Quality of the European Permo-Triassic Paleopoles and Its Impact on Pangea ReconstructionsRob Van der Voo and Trond H. Torsvik 29On the Origin and Distribution of Magnolias: Tectonics, DNA and Climate ChangeR. J. Hebda and E. Irving 43A Long-Term Octupolar Component in the Geomagnetic Field? (0-200 Million Years B.P.)Vincent Courtillot and Jean Besse 59The Paradox of Low Field Values and the Long-Term History of the GeodynamoJohn A. Tarduno and Alexei V Smirnov 75Intensity and Polarity of the Geomagnetic Field During Precambrian TimeDavid J. Dunlop and Yongjae Yu 85A Simplified Statistical Model for the Geomagnetic Field and the Detection of Shallow Bias inPaleomagnetic Inclinations: Was the Ancient Magnetic Field Dipolar?Lisa Tauxe and Dennis V Kent 101Part 2. Magnetic Polarity Stratigraphy and Acquisition of MagnetizationGeomagnetic Polarity Timescales and Reversal Frequency RegimesWilliam Lowrie and Dennis V. Kent 117A Middle Eocene-Early Miocene Magnetic Polarity Stratigraphy in Equatorial PacificSediments (ODP Site 1220)Josep M. Pares and Luca Land 131Astronomical Tuning and Duration of Three New Subchrons (C5r.2r-1n, C5r.2r-2n and C5r.3r-1n)Recorded in a Middle Miocene Continental Sequence From NE SpainHayfaa Abdul Aziz and Cor G. Langereis 141Non-Uniform Occurrence of Short-Term Polarity Fluctuations in the Geomagnetic Field? New Resultsfrom Middle to Late Miocene Sediments of the North Atlantic (DSDP Site 608)Wout Krijgsman and Dennis V Kent 16140Ar/39Ar Chronology of Late Pliocene and Early Pleistocene Geomagnetic and Glacial Events inSouthern ArgentinaBrad S. Singer, Laurie L. Brown, Jorge O. Rabassa, and Herve Guillou 175After the Dust Settles: Why Is the Blake Event Imperfectly Recorded in Chinese Loess?Josep M. Pares, Rob Van der Voo, Maodu Yan, and Xiaomin Fang 191The Matuyama Chronozone at ODP Site 982 (Rockall Bank): Evidence for Decimeter-ScaleMagnetization Lock-in DepthsJ.E.J. Channelland Y. Guyodo 205Part 3. Short-Term Field Behavior: The Reversal Process, Secular Variation and PaleointensityThe Complexity of ReversalsRobert Coe and Jonathan M.G. Glen 221Regionally Recurrent Paleomagnetic Transitional Fields and Mantle ProcessesKenneth A. Hoffman and Brad S. Singer 233Paleomagnetic Intensity Data as a Time Sequence: Opening a Window Into Dynamics of Earth'sFluid Core?Ross Baker and Keith Aldridge 245High Resolution Global Paleointensity Stack Since 75 kyr (GLOPIS-75) Calibrated toAbsolute ValuesCarlo Laj, Catherine Kissel, and Juerg Beer 255Historic Archaeomagnetic Results From the Eastern U.S., and Comparison with SecularVariation ModelsStacey Lengyel and Rob Sternberg 267Low Pacific Secular VariationDavid Gubbins and Steven J. Gibbons 279Intensity-Inclination Correlation for Long-Term Secular Variation of the Geomagnetic Field and ItsRelevance to Persistent Non-Dipole ComponentsToshitsugu Yamazaki and Hirokuni Oda 287An Equivalent Source Model for the Geomagnetic FieldC.G.A. Harrison 299Earth's Magnetic FieldNeil D. Opdyke and Victoria Mejia 315
William Lowrie, Andreas Fichtner, William (Eidgenossische Technische Hochschule Zurich) Lowrie, Andreas (Eidgenossische Technische Hochschule Zurich) Fichtner
William Lowrie, Andreas Fichtner, William (Eidgenossische Technische Hochschule Zurich) Lowrie, Andreas (Eidgenossische Technische Hochschule Zurich) Fichtner, Andreas (eidgenoessische Technische Hochschule Zu Fichtner