Series
Name:
Surficial Geology of Southern Ontario
Ontario Ministry of Northern Development, Mines and Forestry Sudbury Ontario,
Canada
Ontario Geological Survey Ontario,
Canada
Themes or Categories of the Resource: geoscientificInformation
Keywords:
GEOLOGY, GEOLOGICAL SURVEY, DEPOSITS, TILL, SEDIMENT, SAND DUNES, SAND PITS, ALLUVIUM, ARIP, GRAVEL PITS, DRIFT, MINISTRY OF NORTHERN DEVELOPMENT AND MINES, PALEOZOIC BEDROCK GEOLOGY, GLACIAL DEPOSITS, GLACIAL TILL SOILS, PRECAMBRIAN BEDROCK GEOLOGY, MINES
SOIL CLASSIFICATION, GEOLOGY
Soil taxonomy, Geology, Geological surveys, Paleontology, Mines, Sediments, Classification des sols, Sédimentologie, Paléontologie, Géologie
Place Keywords:
Continent > North America > Canada > Ontario
Purpose:
To provide a detailed overview of the surficial geology of southern Ontario and associated attributes available to the land-use planning, consulting, aggregate/industrial mineral industry and development community as well as government geoscientists, resource scientists, conservation authorities, land-use planners and academic researchers. Also, the dataset will be of value to the broader scientific community, school teachers and general public who have an interest in Ontario's geological history and use of earth resources. Discrepancies or inaccuracies may occur in the data for which the Ontario Ministry of Northern Development and Mines does not assume liability. Users should verify critical information. This product is intended for use at scales of 1:50 000 and smaller. Use of this product at larger, detailed scales will result in use for which this product was never intended.
Dataset Language:
eng
Status: completed
Update Frequency: asNeeded
Spatial Representation Type: vector
Processing Environment:
The software used to create the seamless Quaternary coverage in a GIS structured format was ArcMap 8.1 and ArcInfo Workstation. Data was captured as ArcInfo coverages.
Extent
West Longitude: -81.936329
East Longitude: -77.180726
North Latitude: 45.750000
South Latitude: 42.750606
Supplemental Information:
A total of 124 maps, 36 of which belong to the GSC, were used to create the seamless coverage. These original, tiled maps existed as either digital vector or raster format. The raster images were rubber sheeted to a geographic base and digitized (head's up) according to standards established for the project. Polygonal, point and line information was captured as part of the automation process. Coverages created include; sgu_poly, sgu_point, sgu_line, sgu_mor, sgu_misc, ogs_pits and sgu_anno. Attribute tables were built and populated with various geological related information. The original maps contained legends of varying detail and terminology, therefore, a single, standard legend suitable for a 1:50 000 compilation was constructed. This legend, created using Microsoft ®Access Database software, was used to translate all original map units to the new standard legend. Each of the map attribute tables was joined to the translation table using a unique key. A series of additional attributes, for instance, primary material and genesis were extracted from each map sheet and included in this table. By capturing these attributes a variety of derivative maps can be produced. For instance, for aggregate resource assessment studies a map of gravel resources can be derived from the primary material attribute. Position Accuracy of Features: Horizontal: Approximate: +/- 250m; Vertical: Not Applicable.