| Title | Remote predictive mapping of surficial materials west of Repulse Bay, Nunavut (NTS 46M-SW, 46L-W and -S, 46K-SW) |
| Download | Downloads |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Wityk, U; Harris, J R; McMartin, I ; Campbell, J E; Ross, M; Grunsky,
E |
| Source | Geological Survey of Canada, Open File 7357, 2013, 24 pages, https://doi.org/10.4095/292578  Open Access |
| Year | 2013 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | digital; on-line |
| File format | readme
|
| File format | pdf; rtf; xml; shp; xls; docx; jpg |
| Province | Nunavut |
| NTS | 46K/04; 46L; 46M/03; 46M/04; 46M/05; 46M/06; 46M/12 |
| Area | Repulse Bay; Committee Bay; Wager Bay |
| Lat/Long WENS | -84.0000 -82.0000 67.7500 66.0000 |
| Subjects | surficial geology/geomorphology; remote sensing; satellite imagery; glacial deposits; glacial features; landforms; terrain types; mapping techniques; airphoto interpretation; glacial landforms; LANDSAT
7; Cenozoic; Quaternary |
| Illustrations | location maps; tables; flow charts; satellite images; plots |
| Program | GEM: Geo-mapping for Energy and Minerals Multiple Metals - Melville Peninsula (Nunavut) |
| Released | 2013 05 15 |
| Abstract | Canada's vast northern territories require an efficient and timely method to create surficial geology maps. Due to the convenient availability of remotely sensed imagery, it is effective to develop and
test this resource by using various automatic and remote approaches to assist with the production of surficial geology maps.
The goal of this remote predictive mapping (RPM) effort is to generate a map of surficial materials, in turn accelerating
traditional mapping efforts, which use fieldwork, sampling and other resources. This report describes techniques used to create a remote predictive surficial materials map near Repulse Bay in Nunavut using classification algorithms applied to LANDSAT
imagery, and tests two approaches in the iterative RPM process. The approaches are: 1) geological knowledge-based, incorporating expert knowledge and traditional mapping data, and 2) statistically-based, investigating statistical accuracies of the
classifications. Based on variability maps of the most optimal classification maps, it was found that the geological knowledge-based approach is more suitable for remotely mapping materials in the study area. |
| Summary | (Plain Language Summary, not published)
Surficial materials left by the retreat of the last glaciers were mapped near the community of Repulse Bay, central mainland Nunavut. The surficial
mapping is based on the interpretation and classification of remote sensing data, and data acquired during fieldwork. The work was undertaken to provide new geological knowledge of the distribution and nature of surficial materials and will support
informed decision making for resource development and land use. This work is part a graduate research project from University of Waterloo, conducted under the Melville Peninsula Project at the Geological Survey of Canada, as part of Natural Resources
Canada¿s Geo-mapping for Energy and Minerals (GEM) Program. |
| GEOSCAN ID | 292578 |
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