- 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: 200703
- Title: Bedrock Topography of Bistcho Lake Area, Alberta (NTS 84M)
- Geospatial Data Presentation Form: map
- Series Information:
- Series Name: Maps
- Issue Identification: MAP 416
- Publication Information:
- Publication Place: Edmonton, Alberta, Canada
- Publisher: Alberta Geological Survey
- Other Citation Details: Scale 1:250 000
- Description:
- Abstract:
- The bedrock topography map shows contours of the elevation of the bedrock surface above sea level, ranging from a low of 215 metres in the SE corner of the map area to greater than 640 metres in Elsa Hill. In general, the major topographic relief in uplands is controlled by the bedrock topography. The surface of the bedrock in the low-lying areas between the hills and in the Hay River Plain is incised by drift-filled paleovalleys with glacial and possibly preglacial sediments. The contoured south flank of the uplands and linear flutes at surface are evidence of erosion and modification by glacial ice (Figure 1; Paulen et al., 2006b; Smith et al., 2005). Major buried valleys are identified on the map by thalweg names. Data from the Bistcho map area, British Columbia and Northwest Territories indicate the gradient of the Shekilie and Bistcho valleys trend northwestward, and likely flowed toward the Mackenzie River valley in the north. The elevation of the lowest part of the Bistcho Valley was determined from well data to be 234 metres above sea level at the northern portion of a major paleovalley that exits the map area to the north. The trend of the Dickins Valley northward from Bootis Hill is based on sparse data, and may have a western tributary that flowed from British Columbia. South of the Cameron Hills Uplands, the gradients of Amber and Moody paleovalleys indicate that flow was toward the south, likely connecting with the Zama paleovalley located beneath Zama Lake in the adjacent map area to the south. The Adair Valley forms part of what was previously interpreted as the Steen paleovalley and trends southeastward through the Hay River Plain. The bedrock elevation in the Adair Valley is 215 metres above sea level at its lowest point and is the lowest elevation in the entire map area.
- Purpose:
- To map the topography of the bedrock surface of map area NTS 84M at 1:250 000 scale in support of northern Alberta mapping.
- Supplemental Information:
- In English. In English. Petrophysical logs from oil and gas wells 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 top of bedrock; however, the gamma and resistivity logs proved to be the most useful. The drift typically displays a lower gamma and a higher resistivity response than the subcropping bedrock, which is dominantly Cretaceous marine shale in this region. Other sources of data were drill cuttings and water well lithologs. Surficial geological maps provided information on bedrock outcrops and till veneers over shallow bedrock. The bedrock topography contours were initially generated from well data of the bedrock surface picks using a computer-contouring program, followed by subsequent modifications to better reflect the geological model.
- Time Period of Content:
- Time Period Information:
- Range of Dates/Times:
- Beginning Date: 2005
- Ending Date: 2007
- Currentness Reference: ground condition
- 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:
- Theme Keyword: bedrock
- Theme Keyword: buried valley
- Theme Keyword: drift thickness
- Theme Keyword: geology
- Theme Keyword: glacial drift
- Theme Keyword: overburden
- Theme Keyword: thalweg
- Theme Keyword: topography
- Place:
- Place Keyword Thesaurus:
- 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: AGS
- 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: Publications and Marketing Advisor
- Contact Position: Publications and Marketing Advisor
- 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 Information:
- Distributor:
- 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.
- 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.
- Metadata Reference Information:
- Metadata Date: 20070223
- 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 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 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