GEOSCAN Search Results: Fastlink


TitleA remote predictive surficial materials map, eastern Victoria Island, Northwest Territories and Nunavut
AuthorLesemann, J E; Sharpe, D R; Giroux, D
SourceGeological Survey of Canada, Open File 7230, 2013, 1 sheet, (Open Access)
PublisherNatural Resources Canada
Documentopen file
Maps1 map
Map Info.surficial geology, remote predictive materials, 1:500,000
ProjectionLambert Conformal Conic Projection (NAD83)
Mediadigital; on-line
File formatpdf
NTS67B/10; 67B/11; 67B/13; 67B/14; 67B/15; 67C; 67F; 77E; 77H
AreaVictoria Island; Albert Edward Bay; Admiralty Island; Jenny Lind Island
Lat/Long WENS-111.5000 -100.0000 72.0000 68.5000
Subjectssurficial geology/geomorphology; remote sensing; glacial deposits; landforms; terrain types; glacial landforms; vegetation; soil moisture; remote predictive mapping; Cenozoic; Quaternary
ProgramGEM: Geo-mapping for Energy and Minerals, GEM Tri-Territorial Information management & databases (Tri-Territorial Surficial Framework)
Released2013 06 10
Summary(Plain Language Summary, not published)
This map represents a new quick mapping method (Remote Predictive Mapping, RPM) based on using remotely-sensed satellite imagery. Satellite images record spectral tone that can be related to moisture variation on the ground; this is used to classify terrain. RPM classification is aided by training areas that incorporate many of the same principles as used by aerial photograph interpreters (geologist). Variation in spectral tone allows for precise mapping of features and geological material, linked to moisture content. Although, a range of factors affect tone and moisture content: sediment grain size, topography, slope, aspect, vegetation, material thickness, and lithology. Seasonal variations in moisture content are not significant in this classification based on the fact that images were taken at similar time periods.