Identification Information:
Citation:
Citation Information:
Originator: Alberta Energy and Utilities Board
Originator: Alberta Geological Survey
Originator: Pawlowicz, J.G.
Originator: Fenton, M.M.
Publication Date: 200503
Title: Bedrock Topography of Peerless Lake Area, Alberta (NTS 84B) (GIS data, line features)
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2005-0009
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Online Linkage: http://www.ags.gov.ab.ca/publications/DIG/ZIP/DIG_2005_0009.zip
Description:
Abstract:
The bedrock topography map of the Peerless Lake area (NTS 84B) shows the elevation of the bedrock surface. In general, the topography of the land surface reflects the bedrock topography. Thus, bedrock highs underlie the Buffalo Head Hills Upland, Peerless Lake Upland and Utikuma Uplands. Major buried valleys lie within the Loon River Lowland in the west-central part and within the Wabasca Lowlands in the south and northeast parts of the map area. The elevation of the bedrock surface ranges from 780 metres above sea level (masl) in the Buffalo Head Hills to 300 masl in the Loon River Lowland. Segments of three major buried valleys are present: the Muskwa Valley in the south, the Red Earth Valley in the Loon River Lowland and Gods Valley in the northeast. The exact shape of these bedrock valleys and their relationships in the areas where they appear to merge is uncertain as a consequence of the scarcity of relevant drillholes. The Muskwa Valley trends westward towards Lubicon Lake and approximately corresponds with the southern part of the Misaw Channel of Ceroici and part of the L'Hirondelle Channel of Ceroici and Borneuf. The eastern extent of the Muskwa Valley also corresponds with a bedrock low in the northeast corner of the Lesser Slave Lake map area (NTS 83O). The Red Earth Valley partly corresponds to the northerly trending segment of the Misaw Channel of Ceroici, although in the northern part of Loon River Lowland the Red Earth Valley trends north-northeasterly. In the northern part of the Loon River Lowland, abrupt changes in the elevation of stratigraphic markers appear to define a northeasterly trending graben-like structure, which suggests the trend of the Red Earth Valley is partly controlled by bedrock structure. The lowest elevation along the Red Earth Valley is near the town of Red Earth Creek.
Purpose: For depicting bedrock topography in the Peerless Lake area (NTS84B) in GIS format.
Supplemental Information:
Petrophysical logs were the primary source of information used for constructing the bedrock topography. A suite of the common well logs (gamma, resistivity, spontaneous potential, density, neutron, sonic and calliper) were useful in making the pick for the top of bedrock; however, the gamma and resistivity logs proved to be the most useful. The drift typically displays a lower gamma response and higher resistivity response than the underlying bedrock. Other sources of data were water well lithologs, mineral exploration drillholes and outcrop information.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 2000
Ending Date: 2002
Currentness Reference: process date
Status:
Progress: Complete
Maintenance and Update Frequency: None planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -116.009583
East Bounding Coordinate: -113.992966
North Bounding Coordinate: 57.003426
South Bounding Coordinate: 55.9944
Keywords:
Theme:
Theme Keyword Thesaurus: none
Theme Keyword: bedrock topography
Theme Keyword: buried valleys
Theme Keyword: drift thickness
Theme Keyword: gis data
Theme Keyword: glacial drift
Theme Keyword: overburden
Theme Keyword: preglacial
Place:
Place Keyword Thesaurus: None
Place Keyword: 84b
Place Keyword: alberta
Place Keyword: buffalo head hills
Place Keyword: canada
Place Keyword: peerless lake
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: Publications and Marketing Advisor
Contact Position: Publications and Marketing Advisor
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) 422-1927
Contact Facsimile Telephone: (780) 422-1918
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.
Data Set Credit: N.L. Clarke, E. J. Waters, M.C. Price
Native Data Set Environment: Microsoft Windows 2000 Version 5.0 (Build 2195) Se
Cross Reference:
Citation Information:
Originator: Alberta Energy and Utilities Board
Originator: Alberta Geological Survey
Originator: Pawlowicz, J.G.
Originator: Fenton, M.M.
Publication Date: 200503
Title: Bedrock Topography of Peerless Lake Area, Alberta (NTS 84B)
Geospatial Data Presentation Form: map
Series Information:
Series Name: Map
Issue Identification: MAP 252
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Other Citation Details: Scale 1:250000.
Online Linkage: http://www.ags.gov.ab.ca/publications
Cross Reference:
Citation Information:
Originator: Alberta Energy and Utilities Board
Originator: Alberta Geological Survey
Originator: Pawlowicz, J.G.
Originator: Fenton, M.M.
Publication Date: 200503
Title: Drift Thickness of Peerless Lake Area, Alberta (NTS 84B)
Geospatial Data Presentation Form: map
Series Information:
Series Name: Map
Issue Identification: MAP 253
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Other Citation Details: Scale 1:250000.
Online Linkage: http://www.ags.gov.ab.ca/publications
Cross Reference:
Citation Information:
Originator: Alberta Energy and Utilities Board
Originator: Alberta Geological Survey
Originator: Pawlowicz, J.G.
Originator: Fenton, M.M.
Publication Date: 200503
Title: Drift Thickness of Peerless Lake Area, Alberta (NTS 84B) (GIS data, line features)
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2005-0010
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Online Linkage: http://www.ags.gov.ab.ca/publications
Cross Reference:
Citation Information:
Originator: Alberta Energy and Utilities Board
Originator: Alberta Geological Survey
Originator: Pawlowicz, J.G.
Originator: Fenton, M.M.
Publication Date: 200503
Title: Bedrock Thalwegs of Peerless Lake Area, Alberta (NTS 84B) (GIS data, thalweg line features)
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2005-0011
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Online Linkage: http://www.ags.gov.ab.ca/publications
Data Quality Information:
Logical Consistency Report:
The stratigraphic picks used to produce the bedrock surface and drift thickness contours were verified for each data point used. Contouring of the data was first done by a contouring program and then the contour lines were hand-edited on the computer to produce the final interpretation.
Completeness Report:
To generate the contour lines of the bedrock surface and drift thickness, data sources included oil and gas wells, water wells and mineral exploration drillholes. Data from 401 points were used. Of these data, 167 were oil and gas well geophysical logs with bedrock pick, 122 were oil and gas well geophysical logs with bedrock above top of well logs, 54 were water well lithologs with bedrock pick, 5 were water well lithologs with depth of bedrock lying below bottom of well, 44 were mineral drillhole lithologs with bedrock pick and 9 were mineral drillhole lithologs with depth of bedrock lying below bottom of the hole.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
Bedrock contour and drift thickness lines were edited to reflect a valley incision geological model and to honour each data point.
Lineage:
Process Step:
Process Description:

The drift thickness and structure contour of the bedrock surface maps were determined from bedrock stratigraphic picks made from three main sources: oil and gas wells, water wells and mineral exploration drillholes. In oil and gas wells, the bedrock picks were made using geophysical logs. From water wells and mineral drillholes, lithologic decriptions were used to determine the depth to bedrock pick. Picks data were tabulated and imported into a contour-mapping software (MacCad v6.0) using a Macintosh desktop computer. The data were then gridded by triangulation using the Delaunay tuple method. The resultant grid was then contoured using the mapping software. The contour lines were then manually edited on the computer using the MacCad software. The final line interpretation was then gridded again using 400 x 400 grid matrix to produce infill colour rendition.

Final map preparation was as follows: the bedrock contour and gridded data were exported from MacCad in .dxf format and imported into ArcInfo v8.3. The attributes were deleted. The coverages were transformed from page units to real world coordinates (RMS error +/- 20 m) and projected to UTM12 NAD83. The contour lines were smoothed, tagged with the corresponding elevation values and exported to shapefiles. Map compilation was done using ArcGis v8.3.

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: 65
SDTS Terms Description:
SDTS Point and Vector Object Type: Point
Point and Vector Object Count: 4
Spatial Reference Information:
Horizontal Coordinate System Definition:
Geographic:
Geographic Coordinate Units: Decimal degrees
Latitude Resolution: 0.000000
Longitude Resolution: 0.000000
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:
Detailed Description:
Entity Type:
Entity Type Label: btopo_84b_ll.aat
Entity Type Definition: Line features
Entity Type Definition Source: Alberta Geological Survey
Attribute:
Attribute Label: ELEVATION
Attribute Definition: Interpolated bedrock surface elevation in metres above sea level
Attribute Definition Source: Alberta Geological Survey
Distribution Information:
Distributor:
Contact Information:
Contact Organization Primary:
Contact Organization: Alberta Geological Survey
Contact Person: Publications and Marketing Advisor
Contact Position: Publications and Marketing Advisor
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) 422-1927
Contact Facsimile Telephone: (780) 422-1918
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: 20131107
Metadata Contact:
Contact Information:
Contact Organization Primary:
Contact Organization: Alberta Geological Survey
Contact Person: Publications and Marketing Advisor
Contact Position: Publications and Marketing Advisor
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) 422-1927
Contact Facsimile Telephone: (780) 422-1918
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