Digital Data 2022-0036
The sub-Cretaceous unconformity is a major component of the three-dimensional geological model of Alberta. Underlying geological units intersect the sub-Cretaceous unconformity at an oblique angle, creating a subcrop area of each unit at the unconformity surface. This dataset is based on stratigraphic picks of the sub-Cretaceous unconformity identified by the truncation of underlying units for the Lower Athabasca region of Alberta. The study area covers NTS map sheets 73M, 74D, 83P, and 84A.
Peterson, J.T. and Pawley, S.M. (2023): Subcrop Extents of geological units at the sub-Cretaceous unconformity, Lower Athabasca region, Alberta (GIS data, polygon features); Alberta Energy Regulator / Alberta Geological Survey, AER/AGS Digital Data 2022-0036.