Identification Information:
Citation:
Citation Information:
Originator: Alberta Energy and Utilities Board
Originator: Alberta Geological Survey
Originator: Pawlowicz, J.G.
Originator: Nicoll, T.J.
Originator: Sciarra, J.N.
Publication Date: 200704
Title: Bedrock Topography of Bistcho Lake Area, Alberta (NTS 84M) (GIS data, line features)
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2007-0019
Publication Information:
Publication Place: Edmonton, Alberta, Canada
Publisher: Alberta Geological Survey
Online Linkage: http://www.ags.gov.ab.ca/publications/DIG/ZIP/DIG_2007_0019.zip
Description:
Abstract:
This GIS dataset depicts the bedrock topography of NTS map area 84M (line features). The data are created in ArcGIS and output for public distribution in shapefile formats.
Purpose: For depicting bedrock topography in the Bistcho Lake area (NTS84M) in GIS format.
Supplemental Information:
These data comprise the line features of Map 416, Bedrock Topography of Bistcho Lake Area, Alberta, (NTS 84M). This metadata record was generated based on the ArcGIS shapefile. In English.
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 2005
Ending Date: 2007
Currentness Reference: process date
Status:
Progress: Complete
Maintenance and Update Frequency: None planned
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -120
East Bounding Coordinate: -118
North Bounding Coordinate: 60
South Bounding Coordinate: 59
Keywords:
Theme:
Theme Keyword Thesaurus: none
Theme Keyword: bedrock
Theme Keyword: buried valleys
Theme Keyword: drift thickness
Theme Keyword: geology
Theme Keyword: gis data
Theme Keyword: glacial drift
Theme Keyword: overburden
Theme Keyword: thalwegs
Theme Keyword: topography
Place:
Place Keyword Thesaurus: None
Place Keyword: 84m
Place Keyword: alberta
Place Keyword: bistcho lake
Place Keyword: cameron hills
Place Keyword: canada
Place Keyword: elsa hill
Place Keyword: hay river
Place Keyword: zama city
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: M.C. Price
Native Data Set Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535
Cross Reference:
Citation Information:
Originator: Alberta Energy and Utilities Board
Originator: Alberta Geological Survey
Originator: Pawlowicz, J.G.
Originator: Nicoll, T.J.
Originator: Sciarra, J.N.
Publication Date: 200703
Title: Bedrock Topography of Bistcho Lake Area, Alberta (NTS 84M)
Geospatial Data Presentation Form: map
Series Information:
Series Name: Map
Issue Identification: MAP 416
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: Nicoll, T.J.
Originator: Sciarra, J.N.
Publication Date: 200704
Title: Drift Thickness of Bistcho Lake Area, Alberta (NTS 84M) (GIS data, line features)
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2007-0020
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: Nicoll, T.J.
Originator: Sciarra, J.N.
Publication Date: 200704
Title: Bedrock Thalwegs of Bistcho Lake Area, Alberta (NTS 84M) (GIS data, thalweg line features)
Geospatial Data Presentation Form: vector digital data
Series Information:
Series Name: Digital Data
Issue Identification: DIG 2007-0021
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. Data have been checked to ensure all features are attributed, that there are no duplicates and no crossing of contours.
Completeness Report:
To generate the contour lines of the bedrock surface and drift thickness, data sources included oil and gas wells with 849 petrophysical logs and 98 drill cuttings, 132 water well lithologs and 13 bedrock outcrops. Of the 994 data points used, 13 were bedrock picks from outcrop, 447 were stratigraphic picks of bedrock from wells, 468 were stratigraphic picks below the bedrock surface and 66 were stratigraphic picks above the bedrock surface.
Positional Accuracy:
Horizontal Positional Accuracy:
Horizontal Positional Accuracy Report:
Accuracy of well data used for producing the bedrock topography contour and drift thickness lines are estimated to be +/- 50 metres. The bedrock topography contour lines honour each data point and were edited to reflect a valley incision geological model. The horizontal accuracy of contour lines varies with well data density. Position accuracy of contour lines varies from +/- 5 km where well data are sparse to +/- 500 m where well data are closely spaced. Drift thickness lines are dependant on bedrock surface elevations and ground surface elevations from DEM, and reflect the same level of accuracy as bedrock topography lines
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 surficial geology maps. In oil and gas wells, the bedrock picks were made using geophysical logs with additional information from drill cuttings. From water wells, lithologic descriptions were used to determine the depth to bedrock pick. Surficial geology maps were used to obtain bedrock outcrop locations and areas of thin drift (less than 2 metres) overlying bedrock. Tabulated data of bedrock picks and GIS polygons of thin drift were imported into ArcGIS v9.0 for computer contouring on a desktop computer. Ground surface elevations were imported as DEM data into the project software. Bedrock depth picks of each data point were then converted to bedrock elevations above sea level by subtracting depths from DEM data values at that data location. The data were then gridded using the Natural Neighbors method in the 3D Analyst tool in ArcGIS. The resultant grid of the bedrock surface was checked for conflicts and edited to not exceed the ground surface. Next the corrected grid was contoured using XTools in ArcGIS. The contoured lines were then manually edited using the ArcGIS software to reflect a valley incision geological model. The final bedrock contours were regridded using a 60 m cell size to produce infill colour rendition. The drift thickness map was finally created by subtracting the bedrock surface grid from a grid of the ground surface topography. The resultant grid was then smoothed using Neighborhood Statistics under the Spatial Analyst tool in ArcGIS using the following parameters: rectangular mean statistics type, neighbourhood settings of cell height and width of 7, and output cell size of 100. The resultant grid was then contoured to create a drift thickness map. All map interpretation and preparation was done using ArcGIS v9.0 on a desktop computer.
Process Date: 2006
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: 660
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_ln_ll.shp
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