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TitleAn integrated assessment of potential granular aggregate resources in Northwest Territories
AuthorSmith, I R; Lesk-Winfield, K
SourceGeological Survey of Canada, Open File 6058, 2009; 1 DVD, (Open Access)
LinksMetadata - Métadonnées
LinksMetadata - Métadonnées
PublisherNatural Resources Canada
Documentopen file
MediaDVD; on-line; digital
RelatedThis publication is superceded by Smith, I R; Bednarski, J M; Deblonde, C; Duk-Rodkin, A; Huntley, D; Kennedy, K E; (2011). Potential granular aggregate resources in Northwest Territories and northern Yukon: an updated assessment integrating seismic shothole drillers' logs and surficial geology maps, Geological Survey of Canada, Open File 6849
File formatreadme
File formatpdf; e00; shp; bmp; mxd; pmf; txt
ProvinceNorthwest Territories
NTS85B; 85C; 85D; 85E; 85F; 85G; 85L; 95A; 95B; 95C; 95F; 95G; 95H; 95I; 95J; 95K; 95N; 95O; 95P; 96; 97A; 97B; 97C; 97D; 106A; 106B; 106C; 106F; 106G; 106H; 106I; 106J; 106K; 106M; 106N; 106O; 106P; 107A; 107B; 107C; 107D; 107E; 117A; 117D
AreaMackenzie Corridor; Mackenzie Delta; Mackenzie River; Mackenzie Valley; Aklavik; Colville Lake; Deline; Enterprise; Fort Good Hope; Fort Liard; Fort McPherson; Fort Providence; Fort Simpson; Hay River; Inuvik; Jean Marie River; Kakisa; Nahanni Butte; Norman Wells; Sambaa K'e; Trout Lake; Tsiigehtchic; Tuktoyaktuk; Tulita; Wrigley; Yellowknife
Lat/Long WENS-140.0000 -114.0000 71.0000 60.0000
Subjectssurficial geology/geomorphology; environmental geology; stratigraphy; overburden thickness; drift deposits; clays; gravels; boulders; glacial deposits; glaciofluvial deposits; granular deposits; granular resources; buried valleys; alluvial deposits; bedrock geology; environmental impacts; environmental studies; lithology; lithostratigraphy; permafrost; aggregates; geographic information systems; Cenozoic; Quaternary; Tertiary
Illustrationsphotographs; tables
ProgramNorthern Resources Development Program
ProgramProgram of Energy Research and Development (PERD)
Released2009 09 25
AbstractGranular aggregate (e.g., sand, gravel, boulders, and crushed bedrock) is critical to all manner of community, regional, and commercial infrastructure development including roads, airstrips, concrete production, petroleum well and building pads, and pipelines. Typically, granular aggregate is mined from glacial deposits such as eskers, kames, and sub- and pro-glacial meltwater channels; it can also be mined from modern or paleo-river deposits such as raised terraces. As the greatest economic cost of granular aggregate resources is typically associated with its transportation, and this cost increases exponentially with distance, undertakings that identify new potential sources in proximity to communities and prospective infrastructure development projects is regarded as being of particular benefit.
This study uses drillers' logs from past seismic operations throughout the Northwest Territories as a means of identifying potential surface and subsurface (buried) granular aggregate resources. During the auger drilling of seismic shotholes, drillers logged the earth materials they were drilling through at varying degrees of resolution and accuracy. Past success using seismic shothole drillers' logs to identify a large buried granular aggregate deposit in northeastern British Columbia has demonstrated the efficacy of this type of investigation. Using a database of >275 000 archival shothole drillers' log records (Open File 6049), this project has queried, sorted, and interpreted the data from which databases and shapefiles of "gravel" (including boulders and rocks), "gravel + sand" and "sand" deposits have been integrated into a regional Geographic Information System (GIS). Relevant data from a geotechnical borehole database (Smith, 2005) and a separate database of seismic shothole drillers' logs from the Mackenzie Delta region (Côté et al., 2003) has also been interpreted and integrated into the GIS. This publication also includes granular aggregate-associated map polygons (e.g., glaciofluvial deposits, alluvial terraces) extracted from existing surficial geology maps. At present this is confined to the northern part of the Mackenzie corridor (many more surficial geology maps are being completed for the central and southern part of the Mackenzie corridor, and will be integrated into a revised publication at a later date). The benefit of including the map polygon data is that it can be used to confirm or question the identification of potential granular aggregate deposits from coincident shothole records; it also can give a sense of the potential geographic extent of what is otherwise point-source shothole data. The GIS created by this project is designed to give the user a visual sense of the distribution and size of potential granular aggregate deposits, while at the same time providing the ability to search and query the actual records throughout the geographic extent of the data. In all cases, users are cautioned that seismic shothole-associated deposits identified in the GIS should only be considered "potential" granular aggregate resources - all deposits require field verification, as well as a proper assessment of their sedimentological and lithological characteristics prior to their engineering application, or inclusion as part of a regional resource inventory. That said, past success in using this kind of information to prospect for granular aggregate resources, and the shear volume and geographical extent of new information provided by this project is likely to make this a particularly invaluable resource for the Northwest Territories.
Purpose: Produced as part of Natural Resources Canada's Secure Canadian Energy Supply Program, Northern Energy Development - Mackenzie Valley Pipeline project and Program of Energy Research and Development (PERD) Pipelines Program 1.2.5