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