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Parameter | Value |
---|---|
Type | Lambert Conformal Conic projection |
Datum | North American Datum 1927 (NAD27) |
Units | metres |
Spheroid | Clarke, 1866 |
Lambert standard parallels | 49 00 00 N 77 00 00 N |
Projection origin | 95 00 00 W (central meridian) 49 00 00 N |
False origin | (easting, northing)=(0, 0) |
The \CANADA\SHPGEO\... *.SHP files contain geographic (longitude, latitude) co-ordinates.
The codes used for directory and file names correspond to either the compilation block (ARC, SUP, etc.) and/or data type (ROX, RIV, BND, etc.).
Field | Description |
---|---|
SYMBOL | symbol number |
COMP | compiler's name |
English | |
UNIT | unit code |
DOMAIN | onshore/offshore/ice |
COUNTRY | country |
ERA | age at the era level |
PERIOD | age at the period level |
EPOCH | age at the epoch or period level |
REWORKAG | age of reworking/intense metamorphism |
RXTP | general rock category |
SUBRXTP | specific rock category if applicable |
AGERXTP | age/rock type combination for viewers |
METGRADE | metamorphic grade |
GEOLPROV | geological province |
NAME | unit name |
French | |
UNITE | French equivalent of 'UNIT' field |
DOMAINE | French equivalent of 'DOMAIN' field |
PAYS | French equivalent of 'COUNTRY' field |
ERE | French equivalent of 'ERA' field |
PERIODE | French equivalent of 'PERIOD' field |
EPOQUE | French equivalent of 'EPOCH' field |
AGETRANS | French equivalent of 'REWORKAG' field |
TPRCH | French equivalent of 'RXTP' field |
SUBTPRCH | French equivalent of 'SUBRXTP' field |
AGETPRCH | French equivalent of 'AGERXTP' field |
NIVMET | French equivalent of 'METGRADE' field |
PROVGEOL | French equivalent of 'GEOLPROV' field |
NOM | French equivalent of 'NAME' field |
The following items are attached to each line:
Field | Description |
---|---|
SYMBOL | a symbol number |
COMP | compiler's name |
DXF-LAYER | description code (see table below) |
English | |
COUNTRY | country |
ENGDESC | detailed English description of line |
French | |
PAYS | French equivalent of 'COUNTRY' field |
FREDESC | French equivalent of 'ENGDESC' field |
Field | Description |
---|---|
SYMBOL | a symbol number |
COMP | compiler's name |
DXF-LAYER | description code (see table below) |
English | |
COUNTRY | country |
ENGDESC | detailed English description of line |
NAME | feature name (to be added by user) |
French | |
PAYS | French equivalent of 'COUNTRY' field |
FREDESC | French equivalent of 'ENGDESC' field |
NOM | French equivalent of 'NAME' field |
The geological symbols on this map are defined as lines and points. The following items are attached to each line and point:
Field | Description |
---|---|
SYMBOL | a symbol number |
COMP | compiler's name |
DXF-LAYER | description code (see table below) |
English | |
COUNTRY | country |
ENGDESC | detailed English description of symbol |
NAME | feature name (to be added by user) |
French | |
PAYS | French equivalent of 'COUNTRY' field |
FREDESC | French equivalent of 'ENGDESC' field |
NOM | French equivalent of 'NAME' field |
The topographical data are defined as lines. The following items are attached to each line and point:
Field | Description |
---|---|
SYMBOL | a symbol number |
DXF-LAYER | description code (see table below) |
English | |
ENGDESC | detailed English description of line |
French | |
FREDESC | French equivalent of 'ENGDESC' field |
The topographical areas are defined as polygons. The following items are attached to each polygon:
Field | Description |
---|---|
SYMBOL | a symbol number |
DXF-LAYER | description code (see table below) |
English | |
ENGDESC | detailed English description |
French | |
FREDESC | French equivalent of 'ENGDESC' field |
The topographical data are defined as lines. The following items are attached to each line:
Field | Description |
---|---|
SYMBOL | a symbol number |
DXF-LAYER | description code (see table below) |
English | |
ENGDESC | detailed English description of line |
French | |
FREDESC | French equivalent of 'ENGDESC' field |
In addition, the following Canada-wide coverages of topographic data are supplied:
The topographical data are defined as lines and points. The following items are attached to each line and point:
Field | Description |
---|---|
SYMBOL | a symbol number |
DXF-LAYER | description code (see table below) |
English | |
ENGDESC | detailed English description |
NAME | city name (in point file only) |
French | |
FREDESC | French equivalent of 'ENGDESC' field |
NOM | French equivalent of 'NAME' field |
The topographical areas are defined as polygons for unit areas and lines for shoreline. The following items are attached to each line and polygon:
Field | Description |
---|---|
SYMBOL | a symbol number |
DXF-LAYER | description code (see table below) |
English | |
ENGDESC | detailed English description |
French | |
FREDESC | French equivalent of 'ENGDESC' field |
This special polygon cover is included to create a white band around all shorelines and islands. This helps to separate the onshore geology from the offshore. The polygons use the attribute item 'INSIDE'.
The topographical text on this map is defined as annotation. The annotation is stored as a subclass called 'TEXT' which uses the attribute item 'TXT-CLASS'
The following is a list of all DXF-LAYER attributes that appear in the data with a brief description.
DXF-LAYER value | Description |
---|---|
UNCLASS_FLT | unclassified fault |
UNCLASS_FLT_OFF | unclassified fault offshore |
THRUST_FLT | thrust fault (teeth on upper plate) |
THRUST_FLT_OFF | thrust fault offshore (teeth on upper plate) |
NORMAL_FLT | normal fault (hachures on downthrown side) |
NORMAL_FLT_OFF | normal fault offshore |
STRIKE_SLIP_FLT | strike slip fault |
STRIKE_SLIP_OFF | strike slip fault offshore |
SPREAD_CTR | offshore spreading centre |
DEFORM_FRONT | offshore deformation front |
SEAFLOOR_ISO | seafloor isochron |
PSEUDO_FLT | offshore pseudo fault |
FRACTURE_ZONE | offshore fracture zone |
FLEXURE_FLT | offshore flexure fault |
TRANSFORM_FLT | offshore transform fault |
EXTINCT_CENTRE | extinct spreading centre |
SED_ISOPACH | oceanic sediment isograds (defined) |
SED-ISOPACH2 | oceanic sediment isograds (assumed) |
CONT_OCEAN_BDRY | continent ocean boundary (defined) |
CONT_OCEAN_BDRY2 | continent ocean boundary (assumed) |
FACIES_BDRY | facies boundary |
CONTACT | geological contact |
OFF_CONTACT | offshore geological contact (inferred) |
OTHERS | miscellaneous lines |
EVAP_DIAPIR | evaporite diapir |
BURIED_CONTACT | buried contact |
BURIED_FLT | buried fault |
IMPACT | impact structure |
FAULT_BDRY | fault boundary |
ICE_BDRY | ice boundary |
DXF-LAYER value | Description |
---|---|
VOLCANIC_CENTER | volcanic centre |
DIATREME | diatreme |
KIMBERLITE | kimberlite |
CARBONATITE | carbonatite |
TrJ_ULTRAMAFIC | Alaskan-type ultramafic bodies (Triassic Jurassic) |
mK_ULTRAMAFIC | Alaskan-type ultramafic bodies (mid-Cretaceous) |
EVAP_DIAPIR | evaporite diapir |
ACC_TERRANE | leading edge of accreted terrane |
DXF-LAYER Value | Description |
---|---|
NEATLINE | neatline |
URBAN_BDRY | urban boundary |
UNSURVEY_BDRY | unsurveyed boundary |
DIST_BDRY | district boundary |
PROV_BDRY | provincial boundary |
INT_BDRY | international boundary |
CITY_NAME | city name |
SHORELINE | shoreline |
LAKE | lake |
RIVER | river |
ARC_CIRCLE | arctic circle |
BATHYMETRY | submarine contour |
ISLAND | island |
2006-09-03 |