3D PGF Model v2

3D PGF Model v2

3D PGF Model v2

3D Provincial Geological Framework Model of Alberta, Version 2 (methodology, model, dataset, multiple files)

Author(s) Alberta Geological Survey Date 2019-01-31

Version 2 of the three-dimensional Provincial Geological Framework Model of Alberta (3D PGF model v2) is a 3D representation of the subsurface under 602 825 km2 of the province of Alberta, excluding parts of western Alberta affected by Cordilleran deformation. The sixty-two zones of the model represent rock volumes at stratigraphic member, formation or group level, or a combination thereof. The surfaces represent tops and bases of members, formations, and groups, or combined zones and/or major unconformities. These new stratigraphic subdivisions improve upon the vertical resolution of version 1 of the model.

This version of the 3D PGF model is built using 1 235 761 input data points, largely from stratigraphic picks interpreted from wellbore logs across decades of geological interpretation by Alberta Geological Survey (AGS) geologists. The model methodology is similar to that of the first version of the 3D PGF model, as described in the report that accompanies the model download packages.

The model was created using Schlumberger’s Petrel 2015, and was deconstructed and exported in non-proprietary data formats for use in other software packages.

The 3D PGF model v2 model outputs are available for download from the AGS website and include:

  1. a tab-delimited tabular dataset of stratigraphic picks, resampled map lineaments, and estimated guide points used to build the model [Download, 56 MB]
  2. continuous and discrete model horizons as Esri format grids, and zone extent shapefiles [Download, 891 MB] 
  3. an iMOD model dataset package [Download, 593 MB]
  4. the 3D grids within a Petrel project [Download, 371 MB]
  5. all of the above data [Download, 1.8 GB]

The 62 modelled zones of version 2 from ground surface to model base are :
• sediment above bedrock 
• Paskapoo Formation / Porcupine Hills Formation
• Scollard Formation / Willow Creek Formation / Ravenscrag Formation / Frenchman Formation
• Battle Formation
• Wapiti Formation / Brazeau Formation
• Horseshoe Canyon Formation (excluding Strathmore Member) / St. Mary River Formation / Blood Reserve Formation / Whitemud Formation / Eastend Formation
• undifferentiated Bearpaw Formation
• upper Bearpaw Formation
• lower Bearpaw Formation (A)
• Strathmore Member
• lower Bearpaw Formation (B)
• undifferentiated Belly River Group (excluding Dinosaur Park, Oldman, and Foremost formations) 
• Dinosaur Park Formation
• Oldman Formation
• Foremost Formation
• Lea Park Formation
• Pakowki Formation / upper Lea Park Formation
• Milk River Formation / Alderson Member
• undifferentiated upper Smoky Group
• Wapiabi Formation / Niobrara Formation
• Carlile Formation 
• Kaskapau Formation (A)
• Cardium Formation
• Blackstone Formation 
• Kaskapau Formation (B)
• Second White Specks Formation (above Belle Fourche Formation) / Belle Fourche Formation / Fish Scales Formation / Barons Sand
• Second White Specks Formation / Kaskapau Formation (above Dunvegan Formation or Doe Creek Member)
• Doe Creek Member 
• Dunvegan Formation 
• upper Shaftesbury Formation (including Fish Scales zone)
• Westgate Formation / lower Shaftesbury Formation
• upper Loon River Formation 
• Viking Formation / Bow Island Formation / Pelican Formation / Peace River Formation (excluding Harmon Member)
• Joli Fou Formation (including Basal Colorado Sand Member) / Harmon Member
• Mannville Group (excluding Grand Rapids Formation, Clearwater Formation, and McMurray Formation) / Spirit River Formation / lower Loon River Formation
• Grand Rapids Formation 
• Clearwater Formation (excluding Wabiskaw Member) 
• Wabiskaw Member / Bluesky Formation / Gething Formation / Cadomin Formation
• McMurray Formation 
• Nikanassin Formation / Monteith Formation / Fernie Formation
• Schooler Creek Group 
• Doig Formation 
• upper Montney Formation (a.k.a., lower Doig siltstone)
• middle and lower Montney Formation
• La Glace sandstone member
• lower Montney Formation (A)
• Anten coquina member
• lower Montney Formation (B)
• Ellis Group / Ishbel Group / Stoddart Group / Rundle Group
• Banff Formation / Exshaw Formation
• Wabamun Group / undifferentiated Devonian units (Peace River Arch)
• Winterburn Group
• Ireton Formation / Fort Simpson Formation / Grosmont Formation / Grumbler Group
• Duvernay Formation / Muskwa Formation
• Leduc Formation
• Cooking Lake Formation
• Majeau Lake Formation
• Waterways Formation
• Swan Hills Formation / Slave Point Formation
• Fort Vermilion Formation
• Elk Point Group to Precambrian interval
• Precambrian to 6000 m below sea level

The 3D PGF model v2 is an ongoing modelling effort at the AGS. Version 1 was published in May of 2018.

Integration of this large amount of geological interpretation in the form of stratigraphic picks allows for cross-validation of geological concepts at a regional scale. The model is used to deliver geological information and convey geological understanding in a representational three-dimensional geospatial environment.
 

Alberta Geological Survey (2019): 3D provincial geological framework model of Alberta, version 2; Alberta Energy Regulator / Alberta Geological Survey, AER/AGS Model 2018-02.