Figure 4. Stratigraphic reconstruction of the Round Head fault at end Lourdes time. Logs from the footwall part of the Port au Port 1 well have been used without modification. Logs from the hanging-wall part of the Port au Port 1 well were corrected for 40°NW dips to create true stratigraphic thickness logs prior to inclusion in the correlation. The Port au Port 1 well spudded in the Catoche Formation, and the thickness of the overlying units has been reconstructed using published data from the Port au Port Peninsula outcrops (Stenzel et al., 1990; Knight et al., 1991; Stait and Barnes, 1991; Quinn, 1995). See Figure 2 caption for explanation of abbreviations; major unconformities are shown as red lines.