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TitleHydrostratigraphic model of the South Nation watershed region, south-eastern Ontario
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorLogan, CORCID logo; Cummings, D I; Pullan, S; Pugin, A; Russell, H A JORCID logo; Sharpe, D RORCID logo
SourceGeological Survey of Canada, Open File 6206, 2009, 17 pages; 1 DVD, Open Access logo Open Access
LinksMetadata - Métadonnées
PublisherNatural Resources Canada
Documentopen file
MediaDVD; on-line; digital
RelatedThis publication is related to Regional three-dimensional stratigraphic modelling of the Oak Ridges Moraine area, southern Ontario
File formatreadme
File formatpdf; tif; jpg
NTS31B/11; 31B/12; 31B/13; 31B/14; 31B/15; 31C/09; 31C/16; 31F/01; 31F/08; 31F/09; 31G/01; 31G/02; 31G/03; 31G/04; 31G/05; 31G/06; 31G/07; 31G/08; 31G/09; 31G/10; 31G/11
AreaSouth Nation; South Nation River; South Nation River Watershed; Finch; Crysler; Brockville; Merrickville; Morrisburg; Westport; Perth; Carleton Place; Arnprior; Quyon; Huntingdon; Cornwall; Winchester; Kemptville; Ottawa; Russell; Alexandria; Vaudreuil; Lachute; Hawkesbury; Thurso
Lat/Long WENS -76.0000 -74.0000 45.7500 44.5000
Subjectshydrogeology; stratigraphy; surficial geology/geomorphology; hydrostratigraphic units; models; modelling; groundwater; groundwater circulation; groundwater flow; groundwater resources; groundwater discharge; groundwater regimes; groundwater levels; aquifers; watersheds; aggregates; pits; glacial landforms; eskers; sands; gravels; muds; tills; glaciofluvial deposits; Champlain Sea; South Nation Esker; Cenozoic; Quaternary
Illustrationslocation maps; flow charts
Released2009 11 23
AbstractThe files contained on this DVD comprise the digital release of the hydrostratigraphic model of the South Nation watershed region, south-eastern Ontario. The model was developed under the Geological Survey of Canada's Groundwater Program in collaboration with partner agencies (e.g., South Nation Conservation Authority, Ontario Geological Survey, Ontario Ministry of the Environment and Ontario Ministry of Natural Resources). The model consists of a series of gridded surfaces that define the top surfaces of 7 Quaternary stratigraphic units plus bedrock. The modelled units are, stratigraphically from oldest to youngest: 1- Paleozoic bedrock, 2 - Sub-till sediment, 3 - Sandy-silt till, 4 - Glaciofluvial (esker) sediment, 5 - Basin mud, 6 - Basin sand, 7 - Organic deposits, 8 - Recent deposits. Each unit has a companion confidence map that is based on the proximity to, and relative quality of data control points that were used to interpolate its surface. Archival borehole log data was interpreted and reclassified into a stratigraphic database format using a rule-based expert system. Stratigraphic database contacts were combined with digital geologic map polygons using a 10 meter Digital Elevation Model as a common elevation standard. Surfaces were produced using Natural Neighbour interpolations in MapInfo Professional with Vertical Mapper(TM). Database management, data analysis and programming were completed using Microsoft Access 2003 and Visual Basic for Applications. Surfaces and confidence maps are viewable with MapInfo Proviewer available for free download (see For viewing the surfaces in other GIS software, including ArcGIS, GeoTIFF versions of each file are also provided.

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