W. Steven Holbrook

Figure 4: a) Reflection coefficient vs. angle for the seismic reflection from CMP 6665, showing reflection coefficients obtained from the seismic data (thin black line),  smoothed reflection coefficient (thick black dashed line), Zoeppritz’s predictions calculated with the best-fitting density and different steps in Vp (dashed blue lines), and Zoeppritz’s predictions calculated with the best-fitting Vp and density (thick red line). The magnitude of the Vp step is written on the blue lines. c) L1-norm misfit between predicted Zoeppritz’s values of Vp and density contrasts and those inferred from the seismic data. c) same as a) but for CMP 23503. d) same as c) but for CMP 23503.