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Spudich, P, Orcutt J.  1980.  A New Look at the Seismic Velocity Structure of the Oceanic-Crust. Reviews of Geophysics. 18:627-645.   10.1029/RG018i003p00627   AbstractWebsite

Within the last decade a new picture of the oceanic crust has emerged from advances in seismic experimental design, instrumentation, and analysis techniques. In this new picture, layer 2 is a region in which velocity increases rapidly with depth. While there is evidence of finer structure within layer 2, the exact nature of this structure is still poorly resolved. Layer 3 is much more homogeneous vertically than layer 2 and appears to have gentle vertical velocity gradients and occasional low-velocity zones in νp and νs. Although it has been observed at several sites, the widespread existence of a high-velocity basal crustal layer is in doubt. The thickness of the crust-mantle transition has been observed to vary between 0 and 2 km from site to site, and even at flat lying, uncomplicated sites, seismic evidence for lateral heterogeneities on a scale of a few kilometers can be found. This seismic picture of the crust is in good agreement with the seismic velocities of rocks from ophiolite complexes and is consistent with the theoretically expected behavior of seismic velocities in porous, water-saturated rocks at elevated pressures. A review of velocity results obtained from use of synthetic seismogram modeling techniques is given, and the types of synthetic techniques suitable for marine work are described.

Henry, M, Orcutt JA, Parker RL.  1980.  A new method for slant stacking refraction data. Geophysical Research Letters. 7:1073-1076.   10.1029/GL007i012p01073   AbstractWebsite

We describe a method for slant stacking seismic records at a number of ranges to synthesize the τ—ρ curve. The seismograms do not have to be evenly spaced in range and the correct three-dimensional point-source geometry is retained throughout. The problem is posed as a linear inverse problem in a form that permits the construction of a special solution in a very efficient manner.

Shearer, PM, Orcutt JA, Jordan TH, Whitmarsh RB, Kim II, Adair RG, Burnett MS.  1987.  The Ngendei Seismic Refraction Experiment at Deep-Sea Drilling Project Hole 595B - Ocean Bottom Seismometer Data and Evidence for Crustal and Upper Mantle Anisotropy. Initial Reports of the Deep Sea Drilling Project. 91:385-435.   10.2973/dsdp.proc.91.110.1987   AbstractWebsite

The 1983 Ngendei Seismic Refraction Experiment at DSDP Hole 595B consisted of four split refraction profiles at 45° azimuthal increments around the borehole and a circular line of 10-km radius. All of the shots were recorded by at least two of the four ocean bottom seismometers from the Scripps Institution of Oceanography deployed at the Ngendei site. Processing of these data involved the picking of over 2000 water waves and compressional body waves, calculation of shot to OBS ranges, and application of topographic corrections. Azimuthal patterns in P-wave traveltimes indicate anisotropy in the upper mantle with a fast direction of north-northeast, and probable anisotropy in the upper crust with a west-northwest fast direction.

Levander, A, Harding AJ, Orcutt JA.  1993.  Numerical scattering results for a rough unsedimented seafloor. Natural physical sources of underwater sound : sea surface sound (2). ( Kerman BR, Ed.).:221-226., Dordrecht; Boston: Kluwer Academic Publishers Abstract
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