xxth GENERAL ASSEMBLY OF IUGG VIENNA (AUSTRIA)

IAGA NEWS N0.29
GAM1.14 Polarity Transitions and Intervals
Michel Prevot, Centre Geologique et Geophysique,
Universite des Sciences et Techniques, 34095
Montpellier Cedex 5, FRANCE.
Nobuaki Niitsuma
Papers are in vi ted on the following topics: Chronology and
rate of reversals: Polarity superchrons: Records of polarity
transitions and geomagnetic excursions: Models of the
reversing geodynamo.
GAM1.15 Archaeomagnetism
Mary Kovacheva, Bulgarian
Geophysical Institute, Acad
1113 Sofia, BULGARIA.
J Shaw
The main emphasis
results between
resolution secular
will also be a
description, and a call for data.
Academy
G Bonchev
of
Str,
Sciences,
Block 3,
will be on recent advances, comparison of
region/ techniques / laboratories, and high
variation for geomagnetic mode lling. There
progress report on data bases, format
GAM1.16 Magnetic Characteristics of Well-Defined Samples
Franz Heider, I nsti tut fur Allgemeine und Angewandte
Geophysik, Ludwig Maximili ans Universitat,
Theresienstr 41, D-8000 Munchen 2, GERMANY.
B M Moskowitz
Interest will b e focussed on experiments using synthetic
samples with well-defined composition, grain size distribution
and microstructure . Materials of interest are magnetite, TM10-
TM70, hematite-ilmenite, maghemite, pyrrhotite and goethite.
Dependence of properties on sample preparation and grain size,
domain structures, and models will be discussed.
GAM1.17 Rock Magnetism of Sediments
M Hyodo, Dept of Earth Sciences, Kobe University, Kobe
657, JAPAN.
D J Robertson.
This session will focus on observational technique, results
and theory of vector and scalar rockmagnetic properties of
detrital, chemical, biogenic and viscous remanence of all
types of sediment. Typical applications would be to
palaeomagnetism, applied geophysics and environmental
magnetism. Advances in microscopy of magnetic mineral phases
are also relevant.
GAMl.lB General Contributions
Masaru Kono, Institute of Geophysics & Planetary
Physics, UCLA, Los Angeles CA 90024-1567, USA
Papers are welcome which do not fit in a specific symposium as
well as those on themes of wider interest.
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