Digital Data 2022-0036

Author(s) Date 2023-02-27

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.

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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.