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Summary: Absolute dating of brittle fault movements: Late Permian and late
Jurassic extensional fault breccias in western Norway
Elizabeth A. Eide1
*, Trond H. Torsvik1,2
and Torgeir B. Andersen3
1
Geological Survey of Norway, PO Box 3006 Lade, N-7002 Trondheim, Norway, 2
Department of Solid Earth Physics, University of
Bergen, N-5002 Bergen, Norway, 3
Department of Geology, University of Oslo, PO Box 1047 Blindern, 0316 Oslo, Norway
Introduction
The potential of fault rocks to delimit
the timing of tectonic events has ad-
vanced significantly since the quintes-
sential fault-rock classification schemes
of Sibson (1977) and Wise et al. (1984).
Various isotopic dating methods can be
applied to fault rocks to generate abso-
lute ages of fault genesis and have been
used with some success on mylonitic
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