Reflection study of the Haughton impact crater

Details Reflection study of the Haughton impact crater Reflection study of the Haughton impact crater

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jgr....9311930h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 93, Oct. 10, 1988, p. 11930-11942. DFG-supported research; Department of

Mathematics

Logic

10

Geological Surveys, Hypervelocity Impact, Meteorite Craters, Reflected Waves, Seismology, Geological Faults, Northwest Territories, Propagation Velocity, Sedimentary Rocks

Scientific paper

Reflection profiles obtained by a seismic technique are used to study the subsurface properties of the Haughton impact crater. Imaging of the western flank of the Haughton structure with a 10.25-km-long multifold reflection profile resulted in the mapping of 10 acoustic discontinuities in the stratified sedimentary target rocks. The average seismic velocity of over 6000 m/s exhibited by the Paleozoic strata is an indication of the high elastic strength of the undisturbed impact area. The identification of normal faults 3 km west of the faulted annulus suggests a structural diameter of 24 km. The surface morphologically distinct ring zones are not shown to have seismically recognizable subsurface signatures.

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