Bedrock geology of Alberta

Identification Information:
Citation:
Citation Information:
Originator: Alberta Energy and Utilities Board
Originator: Alberta Geological Survey
Originator: Hamilton, W.N.
Originator: Langenberg, C.W.
Originator: Price, M.
Publication Date: 2004
Title: Bedrock geology of Alberta
Edition: v. 2.2
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2004-0033
Publication Information:
Publication Place: Calgary, Alberta, Canada
Publisher: Alberta Energy and Utilities Board
Online Linkage: Download this shapefile
Description:
Abstract:
This data set comprises the bedrock geology of Alberta in geographic information systems (GIS) format. The GIS coverage was originally prepared by digitizing Map 027, 1972, Alberta Geological Survey, Alberta Research Council. Revisions since 1972 have incorporated new mapping data from work by the Alberta Geological Survey and the Geological Survey of Canada, and by the Canadian Society of Petroleum Geologists through the contribution of its membership to the Geological Atlas of the Western Canada Sedimentary Basin. The coverage shows the formation and geologic age of the bedrock subcrop, as well as the nature of the contacts between formations. GIS files are distributed as shapefiles of bedrock polygons (geol_py_ll.shp), bedrock line features (bdrk_ln_ll.shp), and bedrock contacts (geol_ln_ll.shp).
Purpose:
For depicting the bedrock geology of Alberta in a geographic information system, at approximately 1:1 000 000 scale.
Supplemental Information:
Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 2004
Currentness Reference: ground condition
Status:
Progress: Complete
Maintenance and Update Frequency: As needed
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -120
East Bounding Coordinate: -110
North Bounding Coordinate: 60
South Bounding Coordinate: 49
Keywords:
Theme:
Theme Keyword Thesaurus: None.
Theme Keyword: geographic information system
Theme Keyword: gis
Theme Keyword: bedrock geology
Place:
Place Keyword Thesaurus: None.
Place Keyword: alberta
Access Constraints: None.
Use Constraints: Credit to originator/source required. Commercial reproduction not allowed.
Point of Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Alberta Geological Survey
Contact Person: Information Specialist
Contact Position: Information Specialist
Contact Address:
Address Type: mailing and physical
Address: Alberta Energy and Utilities Board
Address: 4th Floor, Twin Atria Building
Address: 4999-98 Avenue
City: Edmonton
State or Province: Alberta
Postal Code: T6B 2X3
Country: Canada
Contact Voice Telephone: (780) 422-3767
Contact Facsimile Telephone: (780) 422-1918
Contact Electronic Mail Address: eub.ags-infosales@gov.ab.ca
Hours of Service: 8:00 a.m. to 12:00 p.m. and 1:00 p.m. to 4:30 p.m.
Data Set Credit: Price, M., Chao, D.K. and Waters, E.J.
Native Data Set Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Se
Data Quality Information:
Logical Consistency Report:
Data represent topologically correct polygons of bedrock geology and their contacts. No formal testing of data fidelity conducted other than building topology.
Completeness Report:
Geological works appropriate to the preparation of a 1:1 000 000 scale map were used to prepare this data set. However, because much of Alberta is covered by a thick layer of drift, input data (primarily drillhole data) are necessarily incomplete. Knowledge gaps exist in many parts of the province, which will be filled in over time.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report: No formal accuracy check completed.
Lineage:
Source Information:
Source Citation:
Citation Information:
Originator: R. Green
Publication Date: 1972
Title: Geological Map of Alberta
Geospatial Data Presentation Form: map
Publication Information:
Publication Place: Edmonton, Canada
Publisher: Research Council of Alberta
Source Scale Denominator: 1267000
Type of Source Media: paper
Source Time Period of Content:
Time Period Information:
Single Date/Time:
Calendar Date: 2001
Source Currentness Reference: publication date
Source Citation Abbreviation: Map 027
Source Contribution:
This map served as the starting point for the subject data set. It was digitized from paper and served as the basis on which geological updates conducted since 1972 were made.
Process Step:
Process Description:
The Geological Map of Alberta 1972-edition served as the basis for this coverage. It was scanned and vectorized to produce an ArcInfo coverage. The coverage was cleaned and labeled with the geological formation symbols. Later, other attributes were added including colour code, and time and stratigraphic codes. Updates to the geology were done based on work by the Geological Survey of Canada in southern Alberta, by AGS in the Canadian shield and Birch Mountains/Fort McMurray area. Coal resources data done by EUB was integrated into the coverage, and the Swan Hills gravels were added. A new map legend was developed consistent with the master stratigraphic reference chart established for the Geological Atlas of the Western Canada Sedimentary Basin. The map legend was expanded to include revised lithologic descriptions. The updated hard copy map and its legend were prepared using a DXF export of the bedrock geology from the ArcInfo coverage. Canvas v.3.5 graphics software was used to do the cartography, on a MacIntosh computer.
Process Date: 2001
Process Step:
Process Description:
Recoded PolyID 491, fields AGSFMNUM COLORCODE GEOLNUM FORMATION SYMBOL. Was incorrectly coded 'Pakowki Formation' during original data converstion, now coded as 'Foremost Formation'. The change brings the GIS version into accordance with the published version of the map.
Process Date: 2004
Spatial Data Organization Information:
Direct Spatial Reference Method: Vector
Point and Vector Object Information:
SDTS Terms Description:
SDTS Point and Vector Object Type: Complete chain
Point and Vector Object Count: 1464
SDTS Terms Description:
SDTS Point and Vector Object Type: Label point
Point and Vector Object Count: 610
SDTS Terms Description:
SDTS Point and Vector Object Type: GT-polygon composed of chains
Point and Vector Object Count: 610
SDTS Terms Description:
SDTS Point and Vector Object Type: Point
Point and Vector Object Count: 60
SDTS Terms Description:
SDTS Point and Vector Object Type: Label point
Point and Vector Object Count: 650
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Transverse Mercator
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999200
Longitude_of_Central_Meridian: -115.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.002048
Ordinate_Resolution: 0.002048
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Entity and Attribute Information:
Overview Description:
Entity and Attribute Overview:
Bedrock geology is maintained in ArcInfo coverage format, and is written out in shapefile format for public distribution. The coverage stores attributed bedrock geology polygons (*.pat) and their geologic contacts (*.aat). Formations with areal extent too limited to be depicted by polygons are maintained in a line coverage. Shapefiles written for distribution are named, respectively: geol_py_ll.shp, geol_ln_ll.shp, and bdrk_ln_ll.shp. Bedrock geology polygon attributes include: AGSGMNUM (a numeric code which allows sorting of records in stratigraphic order); ERA (text, geologic era to which rock unit belongs); PERIOD (text, geologic period to which rock unit belongs); EPOCH (text, geologic epoch to which rock unit belongs); FORMATION (text, full formation name); SYMBOL (text, map symbol for formation name). AGSFMNUM is an eight-digit hierarchical numeric code that uniquely identifies stratigraphic units in various information systems at the Alberta Geological Survey (AGS). Its purpose is to allow digital records to be searched, sorted and grouped stratigraphically. The eight-digit numeric code comprises two parts. The first three digits form the stratigraphic age code (see Table 1 for the domain of values), where the first digit identifies the geologic era, the second digit identifies the geologic period, and the third digit identifies the geologic epoch. The last five digits comprise a unique 'geological formation number' (GEOLNUM, see Table 2 for complete list of domain values). Existing GEOLNUMs and/or equivalents have been incorporated into the AGSFMNUM from other information systems, where applicable. GEOLNUMs with values less than 09999 correspond to formation codes in the AGS well database; GEOLNUMs ranging from 10000 to 10999 correspond to formation codes in the AGS coal database. 'New' GEOLNUM's, i.e. for formations not listed in either the AGS well database or the coal database, are assigned with eleven-thousand series numbers. Table 2 illustrates the AGSFMNUM hierarchy. Bedrock formation contact attributes include: CONTACT-TYPE (nature of the formation boundary: approximate, assumed, nomenclatural, or limit of Cordilleran deformation)
Entity and Attribute Detail Citation:
See included 'Table 1 - Stratigraphic age codes', and 'Table 2 - AGSFMNUMs for Alberta stratigraphic units'
Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: Alberta Geological Survey
Contact Person: Information Sales Coordinator
Contact Position: Information Sales Coordinator
Contact Address:
Address Type: mailing and physical
Address: Alberta Energy and Utilities Board
Address: 4th Floor, Twin Atria Building
Address: 4999-98 Avenue
City: Edmonton
State or Province: Alberta
Postal Code: T6B 2X3
Country: Canada
Contact Voice Telephone: (780) 422-3767
Contact Facsimile Telephone: (780) 422-1918
Contact Electronic Mail Address: eub.ags-infosales@gov.ab.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 and Utilities Board/Alberta Geological Survey (EUB/AGS) and its employees and contractors make no warranty, guarantee or representation, express or implied, or assume any legal liability regarding the correctness, accuracy, completeness or reliability of this publication. The data are supplied on the understanding that they are for the sole use of the user and will not be redistributed in any form, in whole or in part, to third parties. 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 EUB/AGS of any manufacturer's product.
İHer Majesty the Queen in Right of Alberta, 2002 The Alberta Energy and Utilities Board/Alberta Geological Survey (EUB/AGS) and its employees and contractors make no warranty, guarantee or representation, express or implied, or assume any legal liability regarding the correctness, accuracy, completeness, or reliability of this publication. Any digital data and software supplied with this publication are subject to the license conditions (specified in 'Licence Agreement for Digital Products'). The data are supplied on the understanding that they are for the sole use of the licensee and will not be redistributed in any form, in whole or in part, to third parties. Any references to proprietary software in the documentation, and/or any use of proprietary data formats in this release, do not constitute endorsement by the Alberta Energy and Utilities Board/Alberta Geological Survey of any manufacturer's product.
Standard Order Process:
Digital Form:
Digital Transfer Information:
Format Name: ARCE
File Decompression Technique: no compression applied
Transfer Size: 0.994
Digital Transfer Option:
Online Option:
Computer Contact Information:
Network Address:
Network Resource Name: http://www.ags.gov.ab.ca/
Offline Option:
Offline Media: CD-ROM
Recording Format: Unknown
Fees: $20.00/CD-ROM
Metadata Reference Information:
Metadata Date: 20040514
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Alberta Geological Survey
Contact Person: Information Sales Coordinator
Contact Position: Information Sales Coordinator
Contact Address:
Address Type: mailing and physical
Address: Alberta Energy and Utilities Board
Address: 4th Floor, Twin Atria Building
Address: 4999-98 Avenue
City: Edmonton
State or Province: Alberta
Postal Code: T6B 2X3
Country: Canada
Contact Voice Telephone: (780) 422-3767
Contact Facsimile Telephone: (780) 422-1918
Contact Electronic Mail Address: eub.ags-infosales@gov.ab.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 Standards for Digital Geospatial Metadata
Metadata Standard Version: FGDC-STD-001-1998
Metadata Time Convention: local time
Metadata Extensions:
Online Linkage: http://www.esri.com/metadata/esriprof80.html
Profile Name: ESRI Metadata Profile