GEOSCAN Search Results: Fastlink


TitleA 3-D compilation of data sets from the Slave craton, northwest Canada
AuthorSnyder, D B; Hillier, M J; Kjarsgaard, B A; de Kemp, E A; Craven, J A
SourceGeological Survey of Canada, Open File 7395, 2013, 11 pages,
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
File formatreadme
File formatpdf; jpg
ProvinceNunavut; Northwest Territories
NTS75I; 75J; 75K; 75L; 75M; 75N; 75O; 75P; 76A; 76B; 76C; 76D; 76E; 76F; 76G; 76H; 85I; 85J; 85O; 85P; 86A; 86B; 86G; 86H
AreaGreat Slave Lake
Lat/Long WENS-115.0000 -105.0000 66.0000 62.0000
Subjectsstructural geology; stratigraphy; geophysics; models; modelling; modelling, structural; tectonic models; bedrock geology; xenoliths; garnet; seismic surveys; magnetotelluric surveys; magnetotelluric interpretations; seismic interpretations; gravity; aeromagnetic interpretation; aeromagnetic surveys; conductivity; Slave Craton
Illustrationslocation maps; models
Natural Resources Canada Library - Ottawa (Earth Sciences)
ProgramDiamonds, GEM: Geo-mapping for Energy and Minerals
Released2013 06 26
Summary(Plain Language Summary, not published)
The GEM program was designed to map Canada's North. In order to support diamond exploration, this mapping is best done at 150-300 km depths, the so-called 'diamond window'. Fully three-dimensional mapping using geophysical methods, as calibrated by rare samples from xenoliths and garnet xenocrysts is required. A regional 3-D model now exists for the Slave craton within the Canadian Shield and can be presented in stereo using gOcad software. The Slave region of northwest Canada has undergone relatively intense exploration by the diamond industry so that geochemistry of the mantle can be estimated where diamondifereous kimberlite deposits have been discovered and studied. Observed or modelled geophysical properties can thus be calibrated or 'ground truthed' in these sparse locations and extrapolated outward across North America. Our new 3-D models place this 'spot', 1-D geochemical information into a fuller context on a continental-wide scale and allow comparisons with cratons on other continents. New insights may suggest new avenues for exploration.