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Ž . Time domain 2.5-D finite-difference simulations of ground-penetrating radar GPR responses from models of buried human remains suggest the potential of GPR for detailed non-destructive forensic site investigation. Extraction of information beyond simple detection of cadavers in forensic investigations should be possible with current GPR technology. GPR(More)
Ground-penetrating radar (GPR) surveys, outcrop measurements, and cores provide a high resolution three-dimensional geologic model to investigate the effects of shales in marine-influenced lower delta-plain distributary channel deposits within the Cretaceous-age Ferron sandstone at Corbula Gulch in central Utah, USA. Shale statistics are computed from(More)
In conjunction with the 1979 COCORP Wichita Uplift survey, wide-angle reflection -refraction data were recorded on a fixed array. The object of the present study is to model and interpret these wide-angle data to add independent constraints on the deep structure of the Wichita Uplift. Three common-receiver profiles were extracted from the data; west. These(More)
The inclusion of amplitude constraints in body-wave inversions allows the separation of earth models which seem indistinguishable on the basis of travel-time observations. Amplitude constraints can be included through the calculation of synthetic seismograms by the quantized ray theory formulation. As an example, a preliminary model for the velocity(More)
In all media in which the elastic stiffness tensor and density vary in space, an implicit, frequency-dependent anisotropy is present, even if the medium is locally isotropic. This predicts a non-linear, frequency-dependent polarization of body waves, and explains shear-wave splitting in heterogeneous media. Examples are presented for compressional and shear(More)