STRUCTURE, DEPTH & ISOPACH Alberta Geological Survey

3D Provincial Geological Framework: Precambrian subcrop zones

Model zones subcropping on the Precambrian nonconformity (EBR90PreC) from the 3D PGF model; formation-top pick points are available per zone.

Entry point to the provincial 3D framework: which Paleozoic zone sits on basement controls helium traps, brine aquifers and storage seals.

COMMODITIES IT DISCRIMINATES (8)

What this layer helps you find

Prospectivity envelopes citing this dataset (15)

  • Leduc reef trend (Rimbey–Meadowbrook–Clearwater)Lithium (oilfield brines) · Lithium-enriched Devonian carbonate formation brine (DLE target)Profile ↗
  • Swan Hills / Beaverhill Lake reef complexesLithium (oilfield brines) · Lithium brine in Middle Devonian Swan Hills reef carbonatesProfile ↗
  • Fox Creek deep Leduc (Duvernay fairway)Lithium (oilfield brines) · Deep Leduc / Duvernay brine with co-produced lithiumProfile ↗
  • Peace River Arch / Worsley helium fairwayHelium · Basement-sourced helium trapped in Devonian / Cambrian reservoirs on a basement highProfile ↗
  • Sweetgrass Arch / Steveville–KnappenHelium · Helium in Cambrian–Devonian traps over a basement high (Montana–Saskatchewan analogue)Profile ↗
  • Prairie Evaporite potash edge (east-central Alberta)Potash · Sylvinite / carnallite beds at the western edge of the Saskatchewan potash basinProfile ↗
  • Lotsberg / Cold Lake salt corridor (Fort Saskatchewan–Lindbergh)Salt (halite) & brine caverns · Thick, clean Lower Devonian halite suited to solution mining and cavern storageProfile ↗
  • Devonian carbonate MVT Zn-Pb (Pine Point trend extension)Base metals & Ni-Cu-PGE (Shield and carbonate MVT) · Mississippi Valley-type Zn-Pb in dolomitized Presqu'ile barrier (Pine Point analogue)Profile ↗
  • Deep basin thermal maximum (Hinton–Fox Creek–Grande Prairie)Geothermal heat & power · Hot sedimentary aquifer (Leduc, Swan Hills, Granite Wash) and closed-loop targetsProfile ↗
  • Industrial Heartland Basal Cambrian SandstoneCO2 pore space (carbon storage) · Deep saline aquifer storage (Basal Cambrian Sandstone, Leduc, Nisku)Profile ↗
  • Cold Lake–Athabasca Pathways corridorCO2 pore space (carbon storage) · Deep saline Basal Cambrian / Devonian carbonate storage under the oil sandsProfile ↗
  • Montney (Alberta side)Natural gas & condensate (Montney, Duvernay, Deep Basin) · Tight siltstone liquids-rich gas, multi-stage fractured horizontalsProfile ↗
  • Duvernay (Kaybob and East Shale Basin)Conventional, tight & heavy multilateral oil · Devonian organic-rich shale — condensate / light oil resource playProfile ↗
  • Clearwater heavy-oil play (Marten Hills–Nipisi)Conventional, tight & heavy multilateral oil · Shallow Cretaceous heavy oil produced with multilateral unstimulated horizontalsProfile ↗
  • Foothills sour-gas belt (Caroline–Waterton)Sulphur (by-product) · By-product elemental sulphur from deep Devonian–Mississippian sour gasProfile ↗

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