Table T7. Dips and dip directions of the boundaries of seismic packages and two footwall reflectors, Site C0004. (See table notes.)
| Depth SSL (m) |
Dip (°) | ||
|---|---|---|---|
| Direction | Angle | ||
| Base of slope | 2702 | 165 | 14 |
| Top of splay | 2895 | 142 | 15 |
| Bottom of splay | 2951 | 307 | 11 |
| Footwall 1 | 2978 | 248 | 0 |
| Footwall 2 | 2998 | 247 | 2 |
Notes: Position of each reflection is indicated in Figure F34. To estimate the dips and dip directions, we used the three-dimensional (3-D) prestack time-migrated seismic volume combined with the velocities provided by the check shot data. Dip directions for reflectors were determined by digitizing a transect ~200 m long centered on the borehole orthogonal to the two-way traveltime contours of each horizon. Dips were then calculated from the end points of these digitized transects, with time to depth correlation computed using the check shot velocities. These estimated dips may have errors which can be caused by our use of a one-dimensional velocity model used for time-depth conversion. This analysis will be improved by using the fully 3-D prestack depth-migrated data now being processed. SSL = seismic depth below sea level.
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