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Drift Composition and Surficial Geology of the Trutch Map Area (94G),
Northeastern British Columbia
Geological Survey of Canada Open File D3815 |
Compact discs are a cost effective way of distributing large quantities of data but do have some limitations. Data transfer rates of CDs are comparable to hard disks but access times are much slower. The slow access time can have negative implications for applications that require concurrent querying of several files. The speed of access to the data can be greatly improved by copying them to the hard disk.
For complete summary of the files and directories on this CD see the Directory Structure Listing.
|
Language | Format | Description |
readme.txt | English | PC ANSI text | General introduction to the CD |
licence.txt | English | PC ANSI text | Licence and copyright information |
citation.txt | English | PC ANSI text | Recommended citation |
|
|||
autorun.inf | System (hidden) | Microsoft Windows
95/98/NT 4 |
AutoPlay configuration file for Microsoft Windows. This file directs Windows to automatically run the intro.exe application when the CD is inserted into the drive. |
Category | Directory | Subdirectories | File Extension and Description |
Documentation | \Trutch\Doc
\Trutch\Apps |
\Html
\Tutorial |
.htm - files and
images for the Trutch CD
.htm - files and images for SurView tutorial .txt, .gif, .bmp - files and images to support Intro panels |
Data | \Trutch\Data | \Bob
\Dxf \Fdl \Shp \Xls |
.bob - SurView files
.dxf - AutoCad DXF files .fdl - SurView files .shp, .dbf, .shx - Arc/Info shapefiles; .asx, SurView files .xls - Excel files |
Software | \Trutch\Apps
\Trutch\Intro |
n/a
n/a |
SurView.exe - Data viewing
application for Microsoft Windows
Intro.exe - Program that launches Intro panel at startup |
The \Trutch\doc\html directory contains most of the documentation for the CD. The documentation is provided as a series of interlinked *.htm HTML (Hypertext Markup Language) files which can be viewed with any Web browser or by most modern word processors. In addition, the *.htm files are accompanied by a selection of *.gif and *.jpg image files. The documention is available at the Intro panel by clicking the Documentation button. It is also available in SurView from the Documentation pull-down menu. The HTML documentation begins with Welcome.htm.
A SurView tutorial is provided in the \Trutch\Apps\Tutorial directory. This is the best document to use to learn how to display and query data using SurView. It is available through the SurView | Help | Tutorial (HTML) pulldown menu. More detailed documentation for this program, also available via the SurView | Help pulldown menu, is provided as a Windows Help file, SurView.hlp.
|
|
Welcome.htm | Introduction |
Contents.htm | Table of Contents |
Disclaim.htm | Disclaimer and Licence |
Projectn.htm | Projections |
Files.htm | Overview of files, directories and formats |
Credits.htm | Citation and Credits |
Geochem.htm | Drift composition |
Glacial.htm | Notes on glacial history |
Geochron.htm | Geochronology |
Heavies.htm | Heavy mineral analysis |
Legend.htm | Surficial materials legend |
Topog.htm | Topographic base |
Xrd.htm | Clay mineralogy |
Append1.htm | Appendix 1 |
Append2.htm | Appendix 2 |
Append3.htm | Appendix 3 |
Append4.htm | Appendix 4 |
Append5.htm | Appendix 5 |
Append6.htm | Appendix 6 |
Append7.htm | Appendix 7 |
Append8.htm | Appendix 8 |
Faq.htm | Frequently Asked Questions |
The \Trutch\Apps directory contains the SurView application for Microsoft Windows (any version). SurView was developed at the Geological Survey of Canada as a viewing application for geophysical, geochemical and geological data. It is not a GIS, but it does allow the user to view, zoom/pan, query, change colours and print on any Microsoft Windows platform.
The SurView files are indicated in the following table
Filename | Description |
---|---|
\Trutch\Apps\SurView.exe | Microsoft Windows executable |
\Trutch\Apps\SurView.hlp
(SurView.gid, SurView.fts) |
Microsoft Windows help file for SurView |
\Trutch\Apps\System\ctl3dv2.dll | '3D effects' module for Microsoft Windows (not required for Windows 95,98 or Windows NT 4) |
Filename
extension |
Description |
---|---|
|
Arc/Info shapefile |
|
AutoCad DXF file |
Arc/Info shapefiles were created by exporting the coverage Arc/Info ARCSHAPE command. The term "shapefile" refers to the collection of three files, with the extensions .shp,.shx and .dbf. These three files collectively contain the data for an an Arc/Info coverage. The shapefiles can be viewed directly from the CD (no import required) by both ArcView and SurView.
The \Data\Shp directory also contains .asx and .fdl files for each tile and theme and an additional \Luts directory containing .dbf lookup tables. These files are referenced only by SurView when displaying the shapefiles and are not necessary for importing shapefiles into other applications.
For more information on SurView see the SurView tutorial.For detailed information on shapfiles see Appendix D.11 in the SurView help file, SurView.hlp, located in \Trutch\Apps (\Trutch\Apps on disc 2).
These are AutoCad DXF files created in binary format. The DXF files are in the UTM (NAD 83) coordinate system. Layer names in the files are self-explanatory.
Files with the .asx, .bob and .fdl are used exclusively by SurView. Certain restrictions apply to these files when moving data to a hard disk for viewing with SurView. For details see the Data Files section of the SurView tutorial.
All the results of the analytical analyses are provided in spreadsheet form in Excel .xls format.
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