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ESR 2001-01: GIS Compilation of Structural Elements in Northern Alberta, Release 1.0



Earth Sciences Report 2001-01

This CD-ROM contains the complete report prepared for the Alberta Energy Utilities Board, Alberta Geological Survey (EUB/AGS) by D.Pana, E.J.Waters, and M.Grobe.

The compact disk constitutes release of the report in a common digital format. The common format chosen for the report is Adobe's Portable Document Format (PDF). This format allows the viewing of files on any computer capable of running a suitable version of Adobe® Acrobat® ReaderTM. A freeware version of Adobe® Acrobat® Reader™ (for systems using a Microsoft Windows based operating system), is included on the CD-ROM.

To install the software find the file acrobat.exe, double-click on the icon and follow the instructions for installation.

Copies of Adobe® Acrobat® ReaderTM for other platforms may be obtained from Adobe's Homepage at http://www.adobe.com.


Navigation of files on this CD-ROM

Once you have installed Adobe® Acrobat® ReaderTM you may begin to view or print the report by opening ESR2001-01.pdf.


Information about ESR 2001-01

Structural features compiled for ESR2001-01 are supplied digitally in ESRI (Environmental Systems Research Institute) shapefile format. They were compiled into a geographical information system (GIS) by digitizing known and inferred structural features from existing literature (see report for further details about methodology). The data can be viewed and queried using any GIS system that supports shapefiles, or with the free ArcExplorer 2.0 viewer included on this CD. ArcExplorer is a simple GIS viewer that allows for simple display and query of geographic data. Installation instructions for ArcExplorer 2.0 are provided below. Note that this CD also contains digital base map information obtained from the National Atlas of Canada GeoGratis web site (http://geogratis.cgdi.gc.ca/nationalatlas/e_basemaps.html), compiled at a scale of 1:2,000,000. These data include native reserves, park boundaries, railway lines, major roads, rivers, and towns, and are intended to provide cultural and geographic context for the geologic data.

Projection Information

All geographic data on this CD are supplied in 10 degree Transverse Mercator projection for Alberta:
spheroid: GRS80
central meridian: -115.00
reference latitude: 0
scale factor: 0.9992
false easting: 500000
false northing: 0
datum: NAD83

Application Installation

The data can be viewed interactively using ESRI’s free geographic data viewer, ArcExplorer. Follow the directions below to install the ArcExplorer software and view the data:

Installing ArcExplorer 2.0 software from CD for Windows 95/98/NT/2000 (currently unknown if Windows Me/XP supports this software):

  1. Open a Windows Explorer window and navigate to your CD-ROM drive.
  2. Double click on the Application folder
  3. Double click ae2setup.exe to install ArcExplorer 2.0.
  4. Follow the installation instructions on screen.

Visit the ESRI website for further information regarding ArcExplorer at www.esri.com.

Viewing the data with ArcExplorer

  1. Start ArcExplorer (double click Icon on desktop or, from the Start button, select Programs > ESRI > ArcExplorer 2.0 > ArcExplorer).
  2. In ArcExplorer, select File > Open.
  3. Select your CD-ROM drive from the Look in: window.
  4. Double click on the Application folder, then on the ArcExplorer folder.
  5. Double click 'ESR2001_01.aep' file to open the project.

For faster performance, copy the entire Application folder onto your hard drive, and run the application from there.

See the online help in ArcExplorer for detailed instructions on how to pan and zoom the map area, and to perform simple queries of the geographic features. Some specific tips on using ESR2001_01.aep are given below.

About the Data

Table 1 documents the shapefiles used in the ESR2001_01.aep project. Tables 2 and 3 document the information presented in the compiled and inferred lineament shapefiles, respectively.

Table 1 – Summary of shapefile information
Shapefile Name

Description

Source

compiled

Compiled structural lineaments, from literature

AGS

pra

Peace River Arch features (erosional edges, definition)

AGS

inferred

Inferred structural lineaments ( Pana, 2001)

AGS

dem-line

Inferred structural lineaments, digital elevation model ( Pana, 2001)

AGS

misra91_tm

Surface lineaments from satellite imagery (Misra, 1991)

AGS

terrane_ln

Terrane boundaries (Ross et al., 1994)

AGS

terrane_py

Terrane names (Ross et al., 1994)

AGS

kimberlite

Kimberlite and kimberlite-like diatremes

AGS

ab_bnd

Provincial boundary

AGS

geol_py

Bedrock polygons

AGS

geol_ln

Bedrock contacts

AGS

bdrk_ln

Linear bedrock features (thin outcroppings)

AGS

hydrology

Rivers & lake outlines (current as of 1989-92)

Geogratis

park_res

National & provincial park boundaries, native reserves (current as of 1989-92)

Geogratis

transport

Railway lines & major highways (current as of 1989-92)

Geogratis

town

Towns (current as of 1989-92)

Geogratis

twp

Township grid

AGS



Table 2 - Description of the fields in the compiled lineaments layer (compiled.shp shapefile)

Field Name

Description

ID

Internal identifier

LINEID

Primary key for the linear feature (unique identifier)

FMCODE

Formation code (numeric, increasing with increasing age)

FMNAME

Formation name

UPFMCODE

Formation code of the uppermost formation affected by a fault (numeric, increasing with increasing age)

UPFMNAME

Uppermost formation name

FAULTSENSE

Type of fault, with the main component of displacement

DIPDIR

Dip direction of fault plane, 0 - 360 degrees

UP_DOWN

Fault throw on dip-slip faults, given as uplifted block

COMMENT

Comments/remarks

AUTHOR

Reference author

YEAR

Reference year

TITLE

Reference title

SOURCE

Reference publication name

REFPG

Reference page number

PRIFAULT

Primary evidence of faulting (e.g.,  seismic)

SECFAULT

Secondary evidence of faulting (e.g., thickness change)

ERRRANGE

Estimate of the +/- positional accuracy of the feature in metres resulting from georeferencing



Table 3 - Description of the fields in the inferred lineaments layer (inferred.shp shapefile)

Field Name

Description

ID

Internal identifier

INFERREDID

Primary key for the linear feature (unique identifier)

REFERENCE

Source of inferred lineament

REFPG

Reference page number (from Mossop and Shetsen, 1994)

PRIFAULT

Primary evidence of faulting

SECFAULT

Secondary evidence of faulting

FMCODE

Formation code (numeric, increasing with increasing age)

FMNAME

Formation name

UPFMCODE

Formation code of the uppermost formation affected by a fault (numeric, increasing with increasing age)

UPFMNAME

Uppermost formation name

FAULTSENSE

Type of fault, with the main component of displacement

UP_DOWN

Fault throw on dip-slip faults, given as uplifted block

DIPDIR

Dip direction of fault plane, 0 - 360 degrees

COMMENT

Comments/remarks

Users will note that data in both the compiled and inferred themes (layers) extend well beyond the Alberta provincial boundary. This is because, in many cases, study areas of the reference articles also extend beyond Alberta. These “extra-provincial” features were digitized with little additional effort, and were left in the compilation to assist users who may find it helpful to see the larger geological context. However, the authors emphasize that the area under study for this report is restricted to Northern Alberta.

Tips for Using the Application

Querying for elements based on their stratigraphic position: Features in both the compiled and inferred lineament themes (Tables 2 & 3) are tagged with a formation code, a unique number which increases with age/depth. Using the query tool, you can select lineaments within a restricted stratigraphic interval by setting criteria as follows, for example:

FMCODE > 2500 and FMCODE < 9800

This query will select all elements younger than Precambrian (9800), up to and including the Upper Mannville Fm (2500). Use the “Highlight Results” and “Zoom to Results” buttons in the query tool window to show the results of your query in the map view.

Symbolizing elements by attribute value:

Features in both the compiled and inferred lineament layers may be symbolized by any of their field values (see Tables 2 & 3). For example, to symbolize the compiled lineaments by "fault type", use the field PRIFAULT (Primary evidence of faulting):

Double click on the Compiled Lineaments layer in the ArcExplorer legend. In the Theme properties window that appears, choose Classification Option “Unique Values”. Change the value in the Field drop-down box to “PRIFAULT ”, then click Apply, then click OK.

The layer should now be symbolized with a different colour for each value in the field, e.g., aerial photointerpretation, aeromagnetics, facies change, etc. Symbolizing the compiled and inferred themes by formation (field FMNAME) provides another meaningful view of the data.

KNOWN PROBLEM: If the ArcExplorer project is viewed from the CD-ROM the theme legend may not render completely, and text may be truncated.  This problem may be remedied by copying the entire Application folder to the hard drive, then opening the project from that location.


Contact

For more information on the products produced by the EUB/AGS please contact the following:

Alberta Energy and Utilities Board
Alberta Geological Survey
Information Sales
4th Floor, Twin Atria Building
4999-98 Avenue
Edmonton, Alberta
Canada, T6B 2X3

Tel: (780) 422-3767
Fax: (780) 422-1918
Email: EUB.AGS-Infosales@gov.ab.ca

Or visit the Alberta Geological Survey Web site at:
http://www.ags.gov.ab.ca


Disclaimer

©Her Majesty the Queen in Right of Alberta, 2001

This document is protected by copyright and is provided for informational and educational purposes only. No unauthorized commercial reproduction or exploitation is allowed. Any use and interpretation is solely the responsibility of the purchaser. When using these data in publications or presentations, due acknowledgement is to be given to the EUB/AGS and authors.

The EUB/AGS and its employees make no warranty, guarantee, representation, expressed or implied, or assume any legal liability regarding the correctness, accuracy, completeness, reliability, usefulness or fitness for purpose of any information, apparatus, product or process disclosed on this product or that the information disclosed will not infringe any patent, copyright, trade secret or any other proprietary or intellectual property right of any person.

Any references made in this publication to any specific commercial product or service by trade name, trade mark, manufacturer or otherwise, does not constitute or imply the endorsement, recommendation or favouring of the EUB/AGS.

The EUB/AGS regrets that it cannot provide technical or software support for the data and/or software included in or with this digital product.


Recommended Reference Format

When using information from this publication in other publications or presentations, due acknowledgment should be given to the Alberta Geological Survey/Alberta Energy and Utilities Board. The following reference format is recommended:

Pana, D., Waters, E.J. and Grobe, M. (2001): GIS Compilation of Structural Elements in Northern Alberta, Release 1.0; Alberta Energy and Utilities Board, Alberta Geological Survey, Earth Sciences Report 2001-01