The Alberta Geological Survey (AGS) outsourced the geological interpretation of several high-resolution airborne magnetic geophysical surveys conducted by the Alberta Energy Regulator (AER) / AGS over the entire province of Alberta between 2021 and 2024. This report provides merged raster and vector datasets and an interpretation of these newly merged datasets. This release does not replace the previous interpretive reports and data releases provided by Ronacher McKenzie Geoscience Inc. (RMG), as they delve into greater detail for each survey area of Alberta. The interpretation focused on modifying the boundaries of known basement domains, dividing domains into subdomains, identifying brittle and ductile structures, and identifying potential igneous intrusions.
All production of the geophysical products and interpretation of data were completed by RMG, as well as the subcontractor Fathom Geophysics LLC (Fathom), with oversight and approval from the AER and the AGS. The aeromagnetic data from the 2021–2024 surveys were used to create various gridded and raster filter products to aid RMG's interpretation. Fathom generated automatic structure detection, radial symmetry detection, depth to basement filters, and other geophysical products, which also aided RMG in their interpretation. These newly merged datasets were used to conduct a province-wide geophysical interpretation, made in conjunction with the previous interpretations. This release includes all of the geophysical vector and raster products and GIS files.
Lopez, G.P., McGill, D., Brem, A. and McKenzie, J. (2026): Geological interpretation of the 2021-2024 aeromagnetic data - merging of airborne magnetic anterpretation products; Alberta Energy Regulator / Alberta Geological Survey, AER/AGS Special Report 128