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Timescales of the Paleomagnetic Field


Series: Geophysical Monograph Series Volume: 145

By: James ET Channell (Editor), Dennis V Kent (Editor), William Lowrie (Editor), Joseph G Meert (Editor)

328 pages, colour & b/w illustrations, maps

American Geophysical Union

Hardback | Jan 2004 | #232326 | ISBN: 0875904106
Availability: Usually dispatched within 5 days Details
NHBS Price: £60.95 $75/€68 approx

About this book

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. Timescales of the Paleomagnetic Field contains twenty-four of those papers, and is a balanced subset ofthe papers presented at the conference. Timescales of the Paleomagnetic Field 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, Dennis V Kent, William Lowrie, and Joseph C. Meert vii

Part 1. The Geocentric Axial Dipole (GAD) Hypothesis, Continental Reconstruction and Long-Term Geomagnetic Field Behavior
Geocentric Axial Dipole Hypothesis: A Least Squares Perspective
      Michael McElhinny 1
The Case for Pangea B, and the Intra-Pangean Megashear
      E. Irving 13
The Quality of the European Permo-Triassic Paleopoles and Its Impact on Pangea Reconstructions
      Rob Van der Voo and Trond H. Torsvik 29
On the Origin and Distribution of Magnolias: Tectonics, DNA and Climate Change
      R. J. Hebda and E. Irving 43
A Long-Term Octupolar Component in the Geomagnetic Field? (0-200 Million Years B.P.)
      Vincent Courtillot and Jean Besse 59
The Paradox of Low Field Values and the Long-Term History of the Geodynamo
      John A. Tarduno and Alexei V Smirnov 75
Intensity and Polarity of the Geomagnetic Field During Precambrian Time
      David J. Dunlop and Yongjae Yu 85

A Simplified Statistical Model for the Geomagnetic Field and the Detection of Shallow Bias in Paleomagnetic Inclinations: Was the Ancient Magnetic Field Dipolar?
      Lisa Tauxe and Dennis V Kent 101

Part 2. Magnetic Polarity Stratigraphy and Acquisition of Magnetization
Geomagnetic Polarity Timescales and Reversal Frequency Regimes
      William Lowrie and Dennis V. Kent 117
A Middle Eocene-Early Miocene Magnetic Polarity Stratigraphy in Equatorial Pacific Sediments (ODP Site 1220)
      Josep M. Pares and Luca Land 131
Astronomical 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 Spain
      Hayfaa Abdul Aziz and Cor G. Langereis 141
Non-Uniform Occurrence of Short-Term Polarity Fluctuations in the Geomagnetic Field? New Results from Middle to Late Miocene Sediments of the North Atlantic (DSDP Site 608)
      Wout Krijgsman and Dennis V Kent 161
40Ar/39Ar Chronology of Late Pliocene and Early Pleistocene Geomagnetic and Glacial Events in Southern Argentina
      Brad S. Singer, Laurie L. Brown, Jorge O. Rabassa, and Herve Guillou 175
After 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 191
The Matuyama Chronozone at ODP Site 982 (Rockall Bank): Evidence for Decimeter-Scale Magnetization Lock-in Depths
      J.E.J. Channelland Y. Guyodo 205

Part 3. Short-Term Field Behavior: The Reversal Process, Secular Variation and Paleointensity
The Complexity of Reversals
      Robert Coe and Jonathan M.G. Glen 221
Regionally Recurrent Paleomagnetic Transitional Fields and Mantle Processes
      Kenneth A. Hoffman and Brad S. Singer 233
Paleomagnetic Intensity Data as a Time Sequence: Opening a Window Into Dynamics of Earth's Fluid Core?
      Ross Baker and Keith Aldridge 245
High Resolution Global Paleointensity Stack Since 75 kyr (GLOPIS-75) Calibrated to Absolute Values
      Carlo Laj, Catherine Kissel, and Juerg Beer 255
Historic Archaeomagnetic Results From the Eastern U.S., and Comparison with Secular Variation Models
      Stacey Lengyel and Rob Sternberg 267
Low Pacific Secular Variation
      David Gubbins and Steven J. Gibbons 279
Intensity-Inclination Correlation for Long-Term Secular Variation of the Geomagnetic Field and Its Relevance to Persistent Non-Dipole Components
      Toshitsugu Yamazaki and Hirokuni Oda 287
An Equivalent Source Model for the Geomagnetic Field
      C.G.A. Harrison 299
Earth's Magnetic Field
      Neil D. Opdyke and Victoria Mejia 315

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