Figure F84. Composite of core recovery, lithostratigraphy, and age and (A) density and velocity as a function of depth, (B) density and velocity as a function of two-way traveltime (TWT), (C) impedance, (D) reflection coefficients without interbed multiples and transmission losses, (E) reflection coefficients with interbed multiples and transmission losses, and (F) synthetic seismograms based on (D) (black) and (E) (red) as a function of TWT. Note that reflections may be at depths where no core has been recovered, as a consequence of linear resampling and subsequent convolution with a wavelet with peak frequency of 40 Hz. This results in "blurring" and phase shifting the boundaries associated with velocities and/or densities of recovered core segments. In terms of signal processing, this is an aliasing effect. sbsf = seconds below seafloor.