GP22A:
Magnetic Properties of Ancient Rocks: Characterization and Geodynamic Interpretation

Submit an Abstract to this Session

Session ID#: 6310

Session Description:
Magnetic studies of Precambrian rocks allow us to study the paleopositions of ancient cratons, proposing ancient supercontinents in the process, magnetic properties of evolving crust, and characteristics of the Earth’s early magnetic field.  In this session we welcome submissions on paleomagnetic studies, paleointensity investigations, and rock and mineral magnetic properties of ancient rocks.  Although studies from the Canadian Shield are encouraged, abstracts from Precambrian units around the world are most welcome.
OSPA Liaison:  Laurie L Brown, University of Massachusetts Amherst, Geosciences, Amherst, MA, United States
Chairs:  Laurie L Brown, University of Massachusetts Amherst, Geosciences, Amherst, MA, United States and John Anthony Tarduno, University of Rochester, Department of Physics and Astronomy, Rochester, NY, United States
Primary Convener:  Laurie L Brown, University of Massachusetts Amherst, Geosciences, Amherst, MA, United States
Convener:  John Anthony Tarduno, University of Rochester, Department of Earth & Environmental Sciences, Rochester, NY, United States
Index Terms:

1510 Dynamo: theories and simulations [GEOMAGNETISM AND PALEOMAGNETISM]
1517 Magnetic anomalies: modeling and interpretation [GEOMAGNETISM AND PALEOMAGNETISM]
1521 Paleointensity [GEOMAGNETISM AND PALEOMAGNETISM]
1525 Paleomagnetism applied to tectonics: regional, global [GEOMAGNETISM AND PALEOMAGNETISM]
Co-Sponsor(s):
  • PG - Precambrian Geology
  • SE - Solid Earth
  • T - Tectonophysics

Abstracts Submitted to this Session:

GP22A-01
Attempting to Pierce the Metamorphic Veil in the Grenville Orogen of the Canadian Shield (Invited) (33051)
David J Dunlop, University of Toronto, Toronto, ON, Canada
GP22A-02
Paleomagnetism and U-Pb Geochronology of the Western End of the Grenville Dyke Swarm: Rapid Changes in Paleomagnetic Field Direction at ca. 585 Ma Related to Polarity Reversals (Invited) (34372)
Henry C Halls, Alan Lovette and Michael A Hamilton, University of Toronto, Toronto, ON, Canada
GP22A-03
Ediacaran Paleomagnetism of Well-dated Units in Laurentia and West Avalonia: Implications for Models of Oscillatory True Polar Wander, Equatorial Dipoles and Rapid Continental Drift (Invited) (34562)
Kenneth L Buchan, Geological Survey of Canada, Ottawa, ON, Canada, Michael A Hamilton, University of Toronto, Toronto, ON, Canada and Joseph P Hodych, Memorial University, St. John's, NF, Canada
GP22A-04
The Nature of the Ediacaran to Early Cambrian Geomagnetic Field (36623)
Richard K. Bono1 and John Anthony Tarduno1,2, (1)University of Rochester, Department of Earth & Environmental Sciences, Rochester, NY, United States, (2)University of Rochester, Department of Physics and Astronomy, Rochester, NY, United States
GP22A-05
Paleomagnetism of Paleoproterozoic Rocks from Lofoten, Norway: Can They Provide a Baltica Pole for 1.8 Ga? (36558)
Laurie L Brown, University of Massachusetts Amherst, Geosciences, Amherst, MA, United States and Suzanne A McEnroe, Norwegian University of Science and Technology, Trondheim, Norway
GP22A-06
METAMORPHIC AND STRUCTURAL INSIGHT FROM INVESTIGATIONS OF ELUSIVE AEROMAGNETIC ANOMALIES WITHIN THE CANADIAN SHIELD (35343)
Jeffrey Robert Webber, University of Massachusetts, Amherst, Geosciences, Amherst, MA, United States, Laurie L Brown, University of Massachusetts Amherst, Geosciences, Amherst, MA, United States and Michael L Williams, University of Massachusetts, Amherst, MA, United States
GP22A-07
The geodynamo as recorded in Archean and Hadean zircons (35701)
Rory Danielle Cottrell, University of Rochester, Earth and Environmental Sciences, Rochester, NY, United States, John Anthony Tarduno, University of Rochester, Department of Physics and Astronomy, Rochester, NY, United States; University of Rochester, Department of Earth & Environmental Sciences, Rochester, NY, United States and Richard K. Bono, University of Liverpool, Liverpool, United Kingdom
See more of: Geomagnetism and Paleomagnetism