Government of Canada: Natural Resources Canada
 
 
Geological Survey of Canada
Calgary

 

 

Readme
Abstract
Overview
Citation
Metadata
Licence Agreement
Trademarks
Cover Photo
Acknowledgements
SHAPE Metadata
EXPORT Metadata
DXF Metadata

The Central Foreland NATMAP Project

 

OVERVIEW

 

TITLE:

A GIS dataset of geological features for the Redfern Lake map area (94G/5), British Columbia.
 

FEATURE TYPE AND LOCATION INFORMATION:

Points, lines, polygons, and attributes representing the geology of the area covered by NTS map 94G/5 in northeastern British Columbia, Canada.

SPATIAL DOMAIN:

Bounding Coordinates: Geographic coordinates (latitude/longitude) in decimal degrees.

SW Bounding Coordinate:  57.25 -124.00

SE Bounding Coordinate:   57.25 -123.50

NW Bounding Coordinate:  57.50 -124.00

NE Bounding Coordinate:   57.50 -123.50

DATA CREATION ENVIRONMENT:

Platform: Desktop Computer

Operating System: Microsoft Windows2000

Application: MicroStation/J, ArcInfo 8.2

DATA QUALITY INFORMATION:

Geological stations were positioned using uncorrected GPS NAD27 coordinates. Coordinates were transformed to NAD83 using NTV2 software and compilation was based on the positions of the stations. Prior to compilation the base map data was converted from metric to Imperial values in ArcInfo 8.2 using a conversion factor of 0.3048. This conversion achieved consistency with Geomatics Canada hardcopy maps used during field data collection and which were available only in Imperial units.

BASE MAP DATA: Vector data type topographical contours and drainage

Projection: Universal Transverse Mercator

Horizontal Datum: North American Datum 1983

Vertical Datum: Mean Sea Level

Scale: 1:50 000 Distance
Measurement Units: Metres

Elevation Units: Feet

Type of Media: Digital (DXF)

Source Producer: Geomatics Canada

Data Acquisition Date: 1985

GEOLOGICAL SOURCE DATA: Vector data type geological contacts and orientation data points.

Original Compilation: Geological Survey of Canada
Open File 4172

Projection: Universal Transverse Mercator

Horizontal Datum: North American Datum 1983

Vertical Datum: Mean Sea Level

Scale: 1:50 000
Distance Measurement Units: Metres

Elevation Units: Feet

Production Media: Paper

Source Producer: Geological Survey of Canada - Calgary

Publication Date: 2001

Recommended Citation:

Lane, L.S. 2001: Geology of the Redfern Lake map area (94G/5), British Columbia; Geological Survey of Canada, Open File 4172, scale 1:50 000.

 

LINEAGE:

Geological data was compiled from field inspection and scientific interpretation.

ATTRIBUTE ACCURACY:

Independent evaluation of the attribute and positional accuracy of the geological data were conducted by peer review.

HORIZONTAL AND VERTICAL POSITIONAL ACCURACY:

The accuracy of the source components that originated in the Geomatics Canada digital files, and the geological source data digital files was maintained.

POSITIONAL DISCREPANCIES:

This map may contain discrepancies between feature positions located using an older topographic base, and feature positions determined by more recent (GPS) measurements. Inconsistencies (locally in excess of 100 metres) have been resolved by creating a thematically consistent map (consistency between geology and topography) while maintaining the spatial accuracy of the outcrops (where located by GPS points). This may result in apparent errors between the outcrop locations, and the positions of the geological contact lines. Every effort has been made to reduce these discrepancies while maintaining the accuracy of all source data.

PROCESS DESCRIPTION:

The Geomatics Canada Drawing Exchange Format (DXF) files were uploaded to MicroStation/J on a Windows2000 operating system. Geological linework was digitized using MicroStation/J. Geological points were plotted by interfacing MicroStation/J and a Microsoft Access2000 database. All data were edited and finalized in ArcInfo 8.2. All data file types were created from ArcInfo 8.2.

SPATIAL DATA FILE TYPES:

Data are provided in the following file types:
.e00 ArcInfo Export file type from ArcInfo 8.2 on a Windows platform

.shp ArcView Version 3.2 format
.dxf Drawing Exchange Format
 

SPATIAL DATA FILES:

The data are arranged according to the following:

FILE NAME               FILE CONTENTS

gel94g5                     geological contacts

srp94g5                     orientation data

stp94g5                     geological stations

fop94g5                     fossils

sap94g5                    samples

una94g5                    geological unit polygons

unl94g5                     geological unit lines

sel94g5                     stratigraphic sections



ATTRIBUTE DATA DEFINITIONS:

Attributes are defined here as the column names of the tables contained both in the ArcInfo Exchange Format (E00) and SHAPE dBase (.dbf) files.

TABLE gel94g5

Purpose:      contains the attributes of geology lines

Columns:
type            The type of feature. Examples: fault, contact

subtype       Subdivision of the feature type. Examples:

                   normal, approximate

direction       Directional information pertaining to asymmetric

                   features. Example: dip direction of a fault

nts_map       National Topographic System designator.

                   Example: 94G/5

TABLE srp94g5

Purpose:      contains the attributes of points representing orientation

                   measurements

Columns:

planar_id      A unique identification for each planar measurement

planar_typ    The type of planar feature. Examples: bedding, cleavage

modifier        Description of the feature type. Examples: overturned, irregular

strike           Strike (according to the Right-Hand Rule)

dip               Dip

location        Distance/direction from the station if measured between stations
                   or away from the station

trend            Trend of linear feature (value of 999 if no measurement available)

plunge          Plunge of linear feature (value of 999 if no measurement

                   available)

linear_typ     The type of linear feature. Examples: ripple crests, fold axis

comment      Notes relating to measurement
station_id     A unique identification of the outcrop where the measurements
                   were taken

disp_ang      Achieves Right-Hand Rule orientation of symbols in ArcView.

                   Derived using the formula (270-strike)

nts_map       National Topographic System designator. Example: 94G/5

TABLE stp94g5

Purpose:      contains the attributes of points representing outcrops

Columns:

station_id     A unique identification of each outcrop where observations were

                   made

easting        UTM NAD83 easting coordinate value of the station

northing       UTM NAD83 northing coordinate value of the station
elevation      Elevation of the station in feet above Mean Sea Level

unit             The predominant geological unit at the outcrop

geologist     Observing geologist
nts_map      National Topographic System designator. Example: 94G/5

TABLE fop94g5

Purpose:      contains the attributes of points representing fossils

Columns:

station_id     A unique identification of each out crop where fossils were        

                   collected

sample         Sample number of fossil

curation        Curation number of fossil
easting         UTM NAD83 easting coordinate value of station

northing        UTM NAD83 northing coordinate value of station

elevation       Elevation of the station in feet above Mean Sea Level
report           Paleo Report number

year             Year fossil was collected

purpose        Purpose of fossil

nts_map       National Topographic System designator. Example: 94G/5

 

TABLE sap94g5

Purpose:      contains the attributes of points representing samples

Columns:

station_id     A unique identification of each outcrop where samples were        

                   collected

sample         Sample number

easting         UTM NAD83 easting coordinate value of station

northing        UTM NAD83 northing coordinate value of station
curation        Curation number of sample

lithology        Lithology from which the sample was collected

purpose        Reason for collecting the sample

nts_map       National Topographic System designator. Example: 94G/5

 

TABLE una94g5

Purpose:       contains the attributes of polygons representing geological units

Columns:

label             Hardcopy map unit labels

group            Group name

formation       Unit name

member        Member name

gen_descr     Unit description
nts_map        National Topographic System designator. Example: 94G/5
chron_age     Sequential numbering of units from youngest to oldest for this

                    map area

 

Some formations are locally represented by lines rather than polygons, where their thicknesses are less than the 1:50 000 map resolution.

 

TABLE unl94g5

Purpose:      contains the attributes of points representing geological units

Columns:

label            Hardcopy map unit labels

group           Group name

formation      Unit name

member       Member name

gen_descr    Unit description
nts_map       National Topographic System designator. Example: 94G/5
chron_age    Sequential numbering of units from youngest to oldest for this

                   map area

 

TABLE sel94g5
Purpose:     contains the attributes of lines representing measured

                  stratigraphic sections or type-localities
Columns:
type             The type of feature. Example: section, type-localities
sec_id          A unique identification for each section within the map area

segment       A unique identification of any segments within a composite

                   section
base_east    UTM NAD83 easting coordinate value of the base of section
base_north   UTM NAD83 northing coordinate value of the base of section
base_elev     Elevation in feet at the base of the section
top_east       UTM NAD83 easting coordinate value of the top of section
top_north      UTM NAD83 northing coordinate value of the top of section
top_elev        Elevation in feet at the top of the section
sec_thick      Total measured thickness of section
sec_unit        The predominant geological unit at the section
unit_age        The geological age of the measured unit
lithology        The dominant lithologies at the section
length           The length of the section
geologist      The geologist who measured the section
sec_date      The year in which the section was measured
nts_map       National Topographic System designator.  Example: 94G/5
 


PROCESS DESCRIPTION - DETAILED:

Orientation Data:

Process Step: Created table containing location, identification, and
description details of orientation data

Process Description: Structure Query Language scripts were used to organize the relevant data from various MS Access2000 tables into one table Produced: table srp94g5

Process Step: Created graphic file of orientation data locations and identifiers Process Description: Interfaced MS Access2000 and MicroStation/J utilizing ODBC driver. Plotted strike/dip symbols and identifiers utilizing custom BASIC programs.

Produced: srp94g5.dgn

Process Step: Created dBase table of orientation data using table srp94g5
Process Description: Exported srp94g5 from MS Access2000 to dBase

Version IV

Produced: file srp94g5.dbf

Process Step: Created SHAPE files from srp94g5.dbf

Process Description: in ArcView 3.2 TABLES used "add" to import the srp94g5.dbf table and with VIEW "add event theme" Table: srp94g5.dbf

X Field: Easting Y Field: Northing (table columns in srp94g5.dbf). In ArcView 3.2 THEME used "convert to shape file"

Produced: srp94g5.shp, srp94g5.shx, srp94g5.dbf

Process Step: Created ArcInfo 8.2 coverage from srp94g5 SHAPE files Process Description: used ArcInfo ArcToolbox conversion utility

Produced: coverage srp94g5

Process Step: Deprojected ArcInfo 8.2 srp94g5 coverage

Process Description: used Government of Canada Geological Mapping System v. 2.1 Customized software for deprojection process

Produced: coverage srp94g5 in Geographic coordinates, NAD83

Process Step: Created SHAPE files from coverage srp94g5

Process Description: used ArcInfo ArcToolbox conversion utility

Produced: srp94g5.shp, srp94g5.shx, srp94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from coverage srp94g5 Process Description: used ArcInfo ArcToolbox conversion utility

Produced: file srp94g5.e00

Stations Data:

Process Step: Created table containing location, identification, and
description details of station data

Process Description: Structure Query Language scripts were used to organize the relevant data from various MS Access2000 tables into one table Produced: table stp94g5

Process Step: Created graphic file of station locations and identifiers

Process Description: Interfaced MS Access2000 and MicroStation/J utilizing ODBC driver. Plotted station symbols and identifiers utilizing custom BASIC programs.

Produced: stp94g5.dgn

Process Step: Created dBase table of station data using table stp94g5
Process Description: Exported stp94g5 from MS Access2000 to dBase Version IV

Produced: file stp94g5.dbf

Process Step: Created SHAPE files from stp94g5.dbf

Process Description: in ArcView 3.2 TABLES used "add" to import the stp94g5.dbf table and with VIEW "add event theme" Table: stp94g5.dbf

X Field: Easting Y Field: Northing (table columns in stp94g5.dbf). in ArcView 3.2 THEME used "convert to shape file"

Produced: stp94g5.shp, stp94g5.shx, stp94g5.dbf

Process Step: Created ArcInfo 8.2 coverage from stp94g5 SHAPE files Process Description: used ArcInfo ArcToolbox conversion utility

Produced: coverage stp94g5

Process Step: Deprojected ArcInfo 8.2 stp94g5 coverage

Process Description: used Government of Canada Geological Mapping System v. 2.1 Customized software for deprojection process

Produced: coverage stp94g5 in Geographic coordinates, NAD83

Process Step: Created SHAPE files from coverage stp94g5

Process Description: used ArcInfo ArcToolbox conversion utility

Produced: stp94g5.shp, stp94g5.shx, stp94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from coverage stp94g5 Process Description: used ArcInfo ArcToolbox conversion utility

Produced: file stp94g5.e00

Fossils Data:

Process Step: Created table containing location, identification, and
description details of fossil data

Process Description: Structure Query Language scripts were used to organize the relevant data from various MS Access2000 tables into one table Produced: table fop94g5

Process Step: Created graphic file of fossil locations and identifiers

Process Description: Interfaced MS Access2000 and MicroStation/J utilizing ODBC driver. Plotted fossil symbols and identifiers utilizing custom BASIC
programs.

Produced: fop94g5.dgn

Process Step: Created dBase table of fossil data using table fop94g5
Process Description: Exported fop94g5 from MS Access2000 to dBase

Version IV

Produced: file fop94g5.dbf

Process Step: Created SHAPE files from fop94g5.dbf

Process Description: in ArcView 3.2 TABLES used "add" to import the fop94g5.dbf table and with VIEW "add event theme" Table: fop94g5.dbf

X Field: Easting Y Field: Northing (table columns in fop94g5.dbf). In ArcView 3.2 THEME used "convert to shape file"

Produced: fop94g5.shp, fop94g5.shx, fop94g5.dbf

Process Step: Created ArcInfo 8.2 coverage from fop94g5 SHAPE files Process Description: used ArcInfo ArcToolbox conversion utility

Produced: coverage fop94g5

Process Step: Deprojected ArcInfo 8.2 fop94g5 coverage

Process Description: used Government of Canada Geological Mapping System v. 2.1 Customized software for deprojection process

Produced: coverage fop94g5 in Geographic coordinates, NAD83

Process Step: Created SHAPE files from coverage fop94g5

Process Description: used ArcInfo ArcToolbox conversion utility

Produced: fop94g5.shp, fop94g5.shx, fop94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from coverage fop94g5 Process Description: used ArcInfo ArcToolbox conversion utility

Produced: file fop94g5.e00
 

Samples Data:

 

Process Step: Created table containing location, identification, and
description details of sample data

Process Description: Structure Query Language scripts were used to organize the relevant data from various MS Access2000 tables into one table Produced: table sap94g5

Process Step: Created graphic file of sample locations and identifiers

Process Description: Interfaced MS Access2000 and MicroStation/J utilizing ODBC driver. Plotted sample symbols and identifiers utilizing custom BASIC
programs.

Produced: sap94g5.dgn

Process Step: Created dBase table of sample data using table sap94g5
Process Description: Exported sap94g5 from MS Access2000 to dBase

Version IV

Produced: file sap94g5.dbf

Process Step: Created SHAPE files from sap94g5.dbf

Process Description: in ArcView 3.2 TABLES used "add" to import the sap94g5.dbf table and with VIEW "add event theme" Table: sap94g5.dbf

X Field: Easting Y Field: Northing (table columns in sap94g5.dbf). In ArcView 3.2 THEME used "convert to shape file"

Produced: sap94g5.shp, sap94g5.shx, sap94g5.dbf

Process Step: Created ArcInfo 8.2 coverage from sap94g5 SHAPE files Process Description: used ArcInfo ArcToolbox conversion utility

Produced: coverage sap94g5

Process Step: Deprojected ArcInfo 8.2 sap94g5 coverage

Process Description: used Government of Canada Geological Mapping System v. 2.1 Customized software for deprojection process

Produced: coverage sap94g5 in Geographic coordinates, NAD83

Process Step: Created SHAPE files from coverage sap94g5

Process Description: used ArcInfo ArcToolbox conversion utility

Produced: sap94g5.shp, sap94g5.shx, sap94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from coverage sap94g5 Process Description: used ArcInfo ArcToolbox conversion utility

Produced: file sap94g5.e00

 

Wells Data:

Process Step: Created table containing location, identification, and
description details of well data

Process Description: Structure Query Language scripts were used to organize the relevant data from various MS Access2000 tables into one table Produced: table wlp94g5

Process Step: Created graphic file of well locations and identifiers

Process Description: Interfaced MS Access2000 and MicroStation/J utilizing ODBC driver. Plotted well symbols and identifiers utilizing custom BASIC
programs.

Produced: wlp94g5.dgn

Process Step: Created dBase table of well data using table wlp94g5
Process Description: Exported wlp94g5 from MS Access2000 to dBase

Version IV

Produced: file wlp94g5.dbf

Process Step: Created SHAPE files from wlp94g5.dbf

Process Description: in ArcView 3.2 TABLES used "add" to import the wlp94g5.dbf table and with VIEW "add event theme" Table: wlp94g5.dbf

X Field: Easting Y Field: Northing (table columns in wlp94g5.dbf). In ArcView 3.2 THEME used "convert to shape file"

Produced: wlp94g5.shp, wlp94g5.shx, wlp94g5.dbf

Process Step: Created ArcInfo 8.2 coverage from wlp94g5 SHAPE files Process Description: used ArcInfo ArcToolbox conversion utility

Produced: coverage wlp94g5

Process Step: Deprojected ArcInfo 8.2 wlp94g5 coverage

Process Description: used Government of Canada Geological Mapping System v. 2.1 Customized software for deprojection process

Produced: coverage wlp94g5 in Geographic coordinates, NAD83

Process Step: Created SHAPE files from coverage wlp94g5

Process Description: used ArcInfo ArcToolbox conversion utility

Produced: wlp94g5.shp, wlp94g5.shx, wlp94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from coverage wlp94g5 Process Description: used ArcInfo ArcToolbox conversion utility

Produced: file wlp94g5.e00

Geological Lines Data:

Process Step: Created DXF file from MicroStation design file

Process Description: used MicroStation/J export utility

Produced: file gel94g5.dxf

Process Step: Created ArcInfo 8.2 gel94g5 coverage

Process Description: Imported gel94g5.dxf into ArcInfo 8.2

Produced: coverage gel94g5

 Process Step: Deprojected coverage gel94g5

Process Description: used Government of Canada Geological Mapping System v. 2.1 Customized software for the deprojection process

Produced: coverage gel94g5

Process Step: Created SHAPE files from coverage gel94g5

Process Description: used ArcInfo ArcToolbox conversion utility

Produced: gel94g5.shp, gel94g5.shx, gel94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from coverage gel94g5 Process Description: used ArcInfo ArcToolbox conversion utility

Produced: file gel94g5.e00

 

Geological Units Data:

Process Step: Created DXF file from MicroStation design file

Process Description: used MicroStation/J export utility

Produced: file una94g5.dxf

Process Step: Created ArcInfo 8.2 una94g5 coverage

Process Description: Imported una94g5.dxf into ArcInfo 8.2

Produced: coverage una94g5

Process Step: Deprojected ArcInfo 8.2 coverage una94g5

Process Description: used Government of Canada Geological Mapping System v. 2.1 customized software for deprojection process

Produced: coverage una94g5

Process Step: Created SHAPE files from una94g5 coverage

Process Description: used ArcInfo ArcToolbox conversion utility

Produced: una94g5.shp, una94g5.shx, una94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from una94g5 coverage Process Description: used ArcInfo ArcToolbox conversion utility

Produced: file una94g5.e00
 

Process Step: Created DXF file from MicroStation design file

Process Description: used MicroStation/J export utility

Produced: file unl94g5.dxf

Process Step: Created ArcInfo 8.2 unl94g5 coverage

Process Description: Imported unl94g5.dxf into ArcInfo 8.2

Produced: coverage unl94g5

 Process Step: Deprojected coverage unl94g5

Process Description: used Government of Canada Geological Mapping System v. 2.1 Customized software for the deprojection process

Produced: coverage unl94g5

Process Step: Created SHAPE files from coverage unl94g5

Process Description: used ArcInfo ArcToolbox conversion utility

Produced: unl94g5.shp, unl94g5.shx, unl94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from coverage unl94g5 Process Description: used ArcInfo ArcToolbox conversion utility

Produced: file unl94g5.e00

 

Stratigraphic Sections Data:

Process Step: Created table containing location, identification, and description details of stratigraphic sections
Process Description: Structure Query Language scripts were used to organize the relevant data from various MS Access2000 tables into one table
Produced: table sel94g5

Process Step: Created dBase table of stratigraphic section details using table sel94g5
Process Description: Exported sel94g5 from MS Access2000 to dBase Version IV
Produced: file sel94g5.dbf

Process Step: Created SHAPE files from sel94g5.dbf
Process Description: in ArcView 3.2 TABLES used "add" to import the sel94g5.dbf table and with VIEW "add event theme" Table: sel94g5.dbf X Field: Easting Y Field: Northing (table columns in sel94g5.dbf). in ArcView 3.2 THEME used "convert to shape file"
Produced: sel94g5.shp, sel94g5.shx, sel94g5.dbf

Process Step: Created ArcInfo 8.2 coverage from sel94g5 SHAPE files
Process Description: used ArcInfo ArcToolbox conversion utility
Produced: Coverage sel94g5

Process Step: Deprojected ArcInfo 8.2 sel94g5 coverage
Process Description: used Government of Canada Geological Mapping System v. 1.3 Customized software for deprojection process
Produced: coverage sel94g5

Process Step: Created SHAPE files from coverage sel94g5
Process Description: used ArcInfo ArcToolbox conversion utility
Produced: sel94g5.shp, sel94g5.shx, sel94g5.dbf

Process Step: Created ArcInfo 8.2 EXPORT file from coverage sel94g5
Process Description:  used ArcInfo ArcToolbox conversion utility
Produced: sel94g5.e00