Fig. 2: Regional seismic profiles across Silverpit Crater, showing crater morphology and deformation patterns.
From: Multiple lines of evidence for a hypervelocity impact origin for the Silverpit Crater
a is oriented NNW-SSW, intersecting the 43/25-1 well, and b is oriented WNW-ESE, approximately parallel to the inferred impact trajectory for the crater (see Fig. 1 for line locations). Note that conjugate faults are predominantly normal (black) uprange, and predominantly reverse faults (red) downrange, assuming an impact from the west. The 3.2 km diameter crater at mid-Eocene level is offset by around 0.3 km downrange relative to the central uplift at BCU level. See Supplementary Fig. S1 for an uninterpreted version of these lines and S2 and S3 for details about the seismic-to-well tie in (a). The white dashed line in (b) shows the extent of the more intense damage zone in the chalk, with multiple smaller faults at or below seismic resolution.
