Record Details

Geometry of continental normal faults : seismological constraints

ScholarsArchive at Oregon State University

Field Value
Title Geometry of continental normal faults : seismological constraints
Names Braunmiller, Jochen (creator)
Nábělek, John (creator)
Date Issued 1996-02-10 (iso8601)
Note Copyrighted by American Geophysical Union.
Abstract Teleseismic body waves from large earthquakes are used to study the downdip
geometry of continental normal faults in the Aegean. Waveform modeling technique~ together
with rigorous statistical tests are applied to put firm bounds on the amount of downdip curvature
of these faults and the role of coseismic slip on a basal detachment. Synthetic modeling shows
that good azimuthal station coverage and inclusion of SH waves are necessary to resolve fault
curvature. The data indicate ruptures of the Aegean events occurred on planar faults extending
across the entire brittle portion of the crust. No seismogenic low-angle detachment faulting at the
base of the upper crust was detected for these events. Decoupling of the brittle upper crust from
the plastic lower crust probably occurs aseismically in a ductile fashion.
Genre Article
Topic Continental normal faults
Identifier Braunmiller, J., & Nábělek, J. (1996, February 10). Geometry of continental normal faults: Seismological constraints. Journal of Geophysical Research, 101(B2), 3045-3052.

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