U.S. Geological Survey Open-File Report 03-040
Figure 2

Figure 2.  Map of the NPRA showing generalized total thickness of Kingak Shale (derived from depth-converted seismic data), wells that penetrate Kingak Shale with symbols indicating age of uppermost strata and core control, names of selected wells, and approximate truncation edges of chronostratigraphic intervals.  Grid of 2-D seismic data interpreted as a basis for assessing the undiscovered petroleum potential of Beaufortian strata also is shown.  Note that only selected wells are shown outside NPRA.