Mathematics – Logic
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992georl..19.2035k&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 19, no. 20, p. 2035-2038.
Mathematics
Logic
4
Earth Crust, Imaging Techniques, Seismology, Structural Properties (Geology), Geological Faults, Metamorphic Rocks, Reflectors
Scientific paper
Cascaded processes of crossdip correction and residual statics are tested and applied in the reprocessing of regional data from LITHOPROBE Kapuskasing Transect line 2. The objective was to improve seismic imaging of shallow, gently dipping reflectors in the eastern Kapuskasing structural zone, a thrusted slice of Archean middle to lower crust. This focusing strategy proved to be very effective in improving the image of the reflected energy and in identifying a set of conformally dipping reflectors whose true crossdip is estimated to be approximately 17 deg NW. The estimated crossdip for a reflective, compositionally layered zone and for the basal thrust, the Ivanhoe Lake Fault zone, support the previously estimated average dip of 15-20 deg.
Kim Jisoo
Moon Wooil M.
Percival John A.
West Gordon F.
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