Figure 5From: Q P structure of the accretionary wedge in the Kumano Basin, Nankai Trough, Japan, revealed by long-offset walk-away VSP Spectral ratios of stacked seismic traces in the groups G1, G2, G3, and MSF. Colors indicate different offset values. Thick black curves in the G3 and MSF panels show spectral ratios calculated using the traces after stacking all the traces in the wave group. Lines with two arrowheads indicate the frequency ranges for the estimation of Δt*.Back to article page