A seismic refraction survey near the Dailey Islands, southwestern McMurdo Sound, Antarctica

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Stern, T.A. 1984 A seismic refraction survey near the Dailey Islands, southwestern McMurdo Sound, Antarctica. [s.l.]: [s.n.]. Report / Geophysics Division 198 32 p.

Abstract: Seismic refraction measurements were made along two orthogonal profiles near the Dailey Islands in late November-early December 1982. Interpretation of the data indicates about 0.6 to 1.8 km of sediments with seismic velocities less than 3.4 km/s overlying an irregular shaped basement of average velocity 5.1 km/s. No structural offset in the basement was found that could be attributed to a previously proposed normal fault in this area. The irregularity in both the shape and observed apparent velocities of the basement surface is ascribed to either volcanic intrusions associated with the McMurdo Group Volcanics found in this area, or basement block rotation resulting from normal faulting