Identification_Information :

    Citation :

      Citation_Information :

        Originator : Alberta Energy Regulator

        Originator : Alberta Geological Survey

        Originator : Babakhani, M.

        Originator : Peterson, J.T.

        Originator : Onojeghuo, A.

        Publication_Date : 2024

        Title : Structure and Thickness of the Granite Wash in Alberta (gridded data, GeoTIFF format)

        Geospatial_Data_Presentation_Form : raster digital data

        Series_Information :

          Series_Name : Digital Data

          Issue_Identification : DIG 2024-0020

        Publication_Information :

          Publication_Place : Edmonton, Alberta, Canada

          Publisher : Alberta Geological Survey

        Online_Linkage : https://ags.aer.ca/publication/dig-2024-0020

    Description :

      Abstract : This digital dataset contains grids of the top and base elevation surfaces as well as the vertical thickness of the Granite Wash in Alberta.

The grids are based on stratigraphic picks created or compiled and confirmed by Alberta Geological Survey geologists and were modelled using convergent interpolation techniques.

This digital data product is part of the Geothermal Atlas of Alberta, developed under the Mineral Grant provided by the Government of Alberta.

      Purpose : To provide modelled elevation surface grids of the top and base as well as a gridded dataset of the vertical thickness of the Granite Wash in Alberta.

      Supplemental_Information : Language: In English;

    Time_Period_of_Content :

      Time Period Information :

        Single Date/Time :

          Calendar_Date : 2024

    Currentness_Reference : publication date

  Status :

    Progress : Complete

    Maintenance_and_Update_Frequency : None planned

  Spatial Domain :

    Bounding Coordinates :

      West_Bounding_Coordinate : -120.446775

      East_Bounding_Coordinate : -113.916922

      North_Bounding_Coordinate : 58.279053

      South_Bounding_Coordinate : 54.415662

  Keywords :

    Theme :

      Theme_Keyword_Thesaurus : ISO 19115 Topic Category

      Theme_Keyword : atlas

      Theme_Keyword : devonian

      Theme_Keyword : elevation base

      Theme_Keyword : elevation top

      Theme_Keyword : geology

      Theme_Keyword : geothermal

      Theme_Keyword : granite wash

      Theme_Keyword : grid

      Theme_Keyword : vertical thickness

    Place :

      Place_Keyword_Thesaurus : ISO 19115 Topic Category

      Place_Keyword : 83j

      Place_Keyword : 83k

      Place_Keyword : 83l

      Place_Keyword : 83m

      Place_Keyword : 83n

      Place_Keyword : 83o

      Place_Keyword : 84b

      Place_Keyword : 84c

      Place_Keyword : 84d

      Place_Keyword : 84e

      Place_Keyword : 84f

      Place_Keyword : 84g

      Place_Keyword : 84j

      Place_Keyword : 84k

      Place_Keyword : 84l

      Place_Keyword : alberta

      Place_Keyword : canada

  Access_Constraints : Public

  Use_Constraints : Acknowledgement of the Alberta Energy Regulator / Alberta Geological Survey as the originator / source of this information is required as described in the Open Government License - Alberta.

  Point_of_Contact :

    Contact_Information :

      Contact_Organization_Primary :

        Contact_Organization : Alberta Geological Survey

        Contact_Person : AGS Information Manager

      Contact_Position : AGS Information Manager

      Contact_Address :

        Address_Type : mailing and physical

        Address : Alberta Energy Regulator

        Address : 4th Floor, Twin Atria Building

        Address : 4999-98 Avenue NW

        City : Edmonton

        State_or_Province : Alberta

        Postal_Code : T6B 2X3

        Country : Canada

      Contact_Voice_Telephone : (780) 638-4491

      Contact_Facsimile_Telephone : (780) 422-1459

      Contact_Electronic_Mail_Address : AGS-Info@aer.ca

      Hours_of_Service : 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

  Cross_Reference :

    Citation_Information :

      Originator : Alberta Energy Regulator

      Originator : Alberta Geological Survey

      Originator : Onojeghuo, A.

      Originator : Nakevska, N.

      Originator : Geng, H.

      Originator : Rabbani, A.

      Originator : Babakhani, M.

      Publication_Date : 2024

      Title : Geothermal Atlas of Alberta, Version 1 (interactive app and map, methodology, dataset, web maps)

      Geospatial_Data_Presentation_Form : view

      Series_Information :

        Series_Name : Interactive App and Map

        Issue_Identification : IAM 016

      Publication_Information :

        Publication_Place : Edmonton, Alberta, Canada

        Publisher : Alberta Geological Survey

      Online_Linkage : https://ags.aer.ca

Data_Quality_Information :

  Attribute_Accuracy :

    Attribute_Accuracy_Report : Compiled Granite Wash top and base picks included many high-quality interpreted picks from AGS stratigraphers.

  Logical_Consistency_Report : The elevation grids represent the elevation surfaces at the top and base of the Granite Wash in metres above sea level. The vertical thickness grid represents the vertical thickness of the Granite Wash in metres. The grids were exported as a discrete surface in Esri ASCII grid format. The grid cell spacing is 500 m by 500 m.

  Completeness_Report : All Granite Wash top and base picks compiled and confirmed or created by AGS geologists were used for creating the respective elevation surface grids and vertical thickness grid.

  Positional_Accuracy :

    Horizontal_Positional_Accuracy :

   Horizontal_Positional_Accuracy_Report : The data points used to generate the elevation surfaces are from oil and gas well locations. The well locations may be accurate to within millimetres depending on surveying standards at the time of drilling. At the 500 m grid cell size that the elevation and thickness grids were rendered at, any horizontal positional error will have little impact on the accuracy of the grid.

    Vertical_Positional_Accuracy :

   Vertical_Positional_Accuracy_Report : The vertical positional error of the top and base elevation surfaces and vertical thickness grids of the Granite Wash is a function of the quality of the input pick sets, including pick accuracy and data density, and the geological complexity. The occurrence of errors has been mitigated by it geostatistically evaluating the data points to identify outliers and checking their validity.

  Lineage :

    Source_Information :

      Source_Citation :

        Citation_Information :

          Originator : Alberta Energy Regulator

          Originator : Energy Resources Conservation Board

          Originator : Alberta Energy and Utilities Board

          Publication_Date :

          Title : Oil and gas well data from AER corporate database

          Geospatial_Data_Presentation_Form : database

          Series_Information :

            Series_Name : Non-AGS Data Source

            Issue_Identification : n/a

          Publication_Information :

            Publication_Place : Calgary, Alberta, Canada

            Publisher : Alberta Energy Regulator

          Online_Linkage : Not available online.

   Source_Scale_Denominator :

   Type_of_Source_Media : online

        Source Time Period of Content :

          Time Period Information :

            Single Date/Time :

       Calendar_Date :

     Source_Currentness_Reference : publication date

     Source_Citation_Abbreviation : AER corporate database

     Source_Contribution : Granite Wash top and base picks

    Source_Information :

      Source_Citation :

        Citation_Information :

          Originator : Alberta Energy Regulator

          Originator : Alberta Geological Survey

          Publication_Date : 20211207

          Title : Geological Framework of Alberta, Version 3 (interactive app and map, methodology, model, dataset, storymaps, web maps)

          Geospatial_Data_Presentation_Form : model

          Series_Information :

            Series_Name : Interactive App and Map

            Issue_Identification : IAM 012

          Publication_Information :

            Publication_Place : Edmonton, Alberta, Canada

            Publisher : Alberta Geological Survey

          Online_Linkage : https://ags.aer.ca

   Source_Scale_Denominator :

   Type_of_Source_Media : online

        Source Time Period of Content :

          Time Period Information :

            Single Date/Time :

       Calendar_Date : 20211207

     Source_Currentness_Reference : publication date

     Source_Citation_Abbreviation : Interactive app and map

     Source_Contribution : Precambrian and Cambrian picks used to model the base of Granite Wash

    Process_Step :

   Process_Description : Step 1: (Input point data) The Granite Wash top picks and Granite Wash base picks were created or compiled and confirmed by Alberta Geological Survey geologists and represent point datasets defined in three dimensions (X, Y, Z). The vertical thickness of the Granite Wash is calculated by subtracting the elevation of the top of the Granite Wash from that of its base defined as (X, Y, Thickness).

Step 2: (Top and base elevation grids) The top of the Granite Wash was modelled in Petrel using convergent interpolation techniques. Convergent interpolation is a control-point orientated algorithm that converges on a solution iteratively and uses Taylor series projection as the basic gridder. The base of the Granite Wash is a combination of the Precambrian basement top and Cambrian strata top pick datasets. This surface was modelled in Petrel using conformal gridding utilizing the Granite Wash top as the conformal surface. Conformal gridding is based on the convergent interpolation algorithm and conforms to one or two existing surfaces (above and/or below), while still honouring input data).

Step 3: (Vertical thickness grid) The vertical thickness of the Granite Wash was modelled in Petrel using convergent interpolation, with the Granite Wash extent outline set to zero thickness as a reference to constrain the thickness distribution at its margins.

   Process_Date : 2024

  Data_Quality_Information :

Spatial_Data_Organization_Information : Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Grid cell

Spatial_Reference_Information : Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD 1983 10TM AEP Forest

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9992

Longitude_of_Central_Meridian: -115.0

Latitude_of_Projection_Origin: 0.0

False_Easting: 500000.0

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.000000002219135986081256

Ordinate_Resolution: 0.000000002219135986081256

Planar_Distance_Units: metre

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983

Ellipsoid_Name: GRS 1980

Semi-Major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information : Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview: Grid-cell values represent modelled top and base elevation surfaces in metres above sea level (m asl), or vertical thickness in metres (m).

  Distribution_Information :

    Distributor :

      Contact_Information :

        Contact_Organization_Primary :

          Contact_Organization : Alberta Geological Survey

          Contact_Person : AGS Information Manager

        Contact_Position : AGS Information Manager

        Contact_Address :

          Address_Type : mailing and physical

          Address : Alberta Energy Regulator

          Address : 4th Floor, Twin Atria Building

          Address : 4999-98 Avenue NW

          City : Edmonton

          State_or_Province : Alberta

          Postal_Code : T6B 2X3

          Country : Canada

        Contact_Voice_Telephone : (780) 638-4491

        Contact_Facsimile_Telephone : (780) 422-1459

        Contact_Electronic_Mail_Address : AGS-Info@aer.ca

        Hours_of_Service : 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

Distribution_Liability : The Alberta Energy Regulator / Alberta Geological Survey (AER/AGS) licenses this information under the Open Government License - Alberta. Any references to proprietary software in our documentation, and/or any use of proprietary data formats in our releases, do not constitute endorsement by the AER/AGS of any manufacturer's product.

  Metadata_Reference_Information :

    Metadata_Date : 20241024

    Metadata_Contact :

      Contact_Information :

        Contact_Organization_Primary :

          Contact_Organization : Alberta Geological Survey

          Contact_Person : AGS Information Manager

        Contact_Position : AGS Information Manager

        Contact_Address :

          Address_Type : mailing and physical

          Address : Alberta Energy Regulator

          Address : 4th Floor, Twin Atria Building

          Address : 4999-98 Avenue NW

          City : Edmonton

          State_or_Province : Alberta

          Postal_Code : T6B 2X3

          Country : Canada

        Contact_Voice_Telephone : (780) 638-4491

        Contact_Facsimile_Telephone : (780) 422-1459

        Contact_Electronic_Mail_Address : AGS-Info@aer.ca

        Hours_of_Service : 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.

    Metadata_Standard_Name : FGDC Content Standard for Digital Geospatial Metadata

    Metadata_Standard_Version : FGDC-STD-001-1998

    Metadata_Time_Convention : local time

    Metadata_Access_Constraints : none

    Metadata_Use_Constraints : none