The Jurassic?Lower Cretaceous Kingak Shale in the National Petroleum Reserve in Alaska (NPRA) includes several southward-offlapping depositional sequences that culminate in an ultimate shelf margin, which preserves the depositional profile in southern
Stier, Natalie E.,Connors, Christopher D.,Houseknecht, David W. dhouse@usgs.gov. Influence of the Kingak Shale ultimate shelf margin on frontal structures of the Brooks Range in the National Petroleum Reserve in Alaska. 2014-01-01.