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TitleAn overview of the surficial geology map compilation, RapidEye land-cover mapping and permafrost studies for infrastructure in the western Hudson Bay area, Nunavut
 
AuthorTremblay, T; Kendall, M S; Leblanc, A -MORCID logo; Bellehumeur-Génier, O; Oldenborger, G AORCID logo; Budkewitsch, P; Mate, D J
SourceCanada-Nunavut Geoscience Office, Summary of Activities 2015, 2015 p. 145-159 Open Access logo Open Access
LinksOnline - En ligne
Year2015
Alt SeriesEarth Sciences Sector, Contribution Series 20150327
PublisherCanada-Nunavut Geoscience Office
Documentserial
Lang.English
Mediaon-line; digital
File formatpdf (Adobe® Reader®); tfw; tif; xml; xlsx (Microsoft® Excel®)
ProvinceNunavut
AreaKivalliq
ProgramCanada-Nunavut Geoscience Office, Funding Program
Released2015 01 01
AbstractThe Western Hudson Bay project is a Canada-Nunavut Geoscience Office-led geoscience project collecting and compiling geoscience data for infrastructure. Significant new infrastructure is being considered in the Kivalliq region of Nunavut, including a proposed Manitoba-Nunavut road corridor, in order to support natural resource and community development. Western Hudson Bay lies in the continuous permafrost zone, where 90-100%of the ground surface is underlain by permafrost. Alack of compiled regional geoscience knowledge in this region is a hindrance in helping advance informed decision-making to build this type of infrastructure. This paper presents 1) the new digital compilation of surficial geology for the area, from various maps published in the 1970s and 1980s; 2) a methodology for interpreting land cover from RapidEye images to enhance the location of some potential aggregate sources (gravel deposits), bedrock outcrops, bouldery tills, freshly eroded sediments, vegetation and water surfaces; 3) a bibliographical summary of till and lake-sediment geochemical samples and of bedrock geology synthesis maps, and of the location of mineral occurrences; and 4) a summary of the existing literature on the permafrost conditions. This paper also presents ongoing and possible future work on 1) the integration of modern and traditional knowledge on permafrost conditions, 2) the assessment of ground surface displacement using a remote sensing method, and 3) new bedrock geology mapping to complete the coverage of the study area.
Summary(Plain Language Summary, not published)
The Western Hudson Bay project is a Canada-Nunavut Geoscience Office'led geoscience project collecting and compiling geoscience data for infrastructure development. Significant new infrastructure is being considered in the Kivalliq region of Nunavut, including the proposed Manitoba-Nunavut road corridor. Western Hudson Bay lies in the continuous permafrost zone, where 90'100% of the area is always frozen under the surface. In collaboration with the Geological Survey of Canada, a two-year (2014'2016) project is aimed at compiling geoscience data and providing 1) a digital compilation map of surficial geology for the area, 2) new satellite interpretations for land cover, and 3) a bibliographical summary of till and lake-sediment geochemical samples, of bedrock geology synthesis maps, and of the location of mineral occurrences. New bedrock geology maps are being produced to complete the coverage of the study area. The knowledge of permafrost will be compiled with a summary of the existing literature, traditional knowledge, ground surface displacement and climatic data.
GEOSCAN ID297390

 
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