BEDROCK GEOLOGY Alberta Geological Survey

Bedrock geology of Alberta (Map 600 tiles)

Official 1:1,000,000 bedrock geology symbology as pre-rendered Web Mercator tiles.

Which formation is at the bedrock surface: the first screen for outcropping targets such as silica sand, limestone, ironstone, bentonite, ammonite shell and shallow coal.

COMMODITIES IT DISCRIMINATES (12)

What this layer helps you find

Prospectivity envelopes citing this dataset (14)

  • Peace River Formation quartzose sandsSilica sand · Cretaceous shoreface quartz arenite (frac / glass-grade silica)Profile ↗
  • Basal McMurray / Firebag silicaSilica sand · Clean fluvial quartz sand beneath / beside the oil sandsProfile ↗
  • Front Ranges carbonate belt (Exshaw–Cadomin)Limestone, dolomite, cement & lime · High-purity Devonian–Mississippian carbonate (Palliser, Rundle) in thrust sheetsProfile ↗
  • Clear Hills Bad Heart oolitic ironstoneIron & vanadium (Clear Hills ironstone) · Cretaceous oolitic ironstone (chamosite–goethite) with vanadium-enriched glauconiteProfile ↗
  • Athabasca Basin western margin (Maybelle River–Burwash)Uranium · Unconformity-related uranium at the Athabasca sandstone / basement contactProfile ↗
  • Exposed Canadian Shield (Andrew Lake–Fort Chipewyan)Base metals & Ni-Cu-PGE (Shield and carbonate MVT) · Orogenic / magmatic Ni-Cu-PGE, VMS and pegmatite-hosted targets in the Taltson magmatic zoneProfile ↗
  • Inner Foothills coking-coal belt (Grande Cache–Cadomin–Crowsnest)Metallurgical (coking) coal · Lower Cretaceous Luscar / Kootenay Group bituminous coal in thrust-folded seamsProfile ↗
  • Plains subbituminous coal (Ardley / Horseshoe Canyon)Thermal coal · Flat-lying Paleocene–Upper Cretaceous coal zones at shallow depthProfile ↗
  • Bearpaw Formation ammonite zone (St. Mary River)Ammonite shell (ammolite) · Iridescent Placenticeras ammonite shell (ammolite) in Bearpaw concretionsProfile ↗
  • Bearpaw / Horseshoe Canyon bentonite beltBentonite, clay & shale · Altered volcanic ash (bentonite) seams in Upper Cretaceous shalesProfile ↗
  • Peace Point gypsum (Wood Buffalo) and Bow River evaporitesGypsum & anhydrite · Devonian evaporite gypsum / anhydrite at or near surfaceProfile ↗
  • Fernie / Exshaw phosphorite (Crowsnest–Banff)Phosphate · Thin Jurassic–Mississippian phosphorite beds in the Front RangesProfile ↗
  • Prairie Evaporite MgCl2 brines and Devonian dolomiteMagnesium · Magnesium from bittern brines (carnallite) or dolomite (Pidgeon / electrolytic)Profile ↗
  • Paskapoo sandstone and Rundle stoneBuilding & dimension stone · Dimension stone from Paleocene sandstone and Mississippian limestoneProfile ↗