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TitleReconnaissance surficial geology, Arrowsmith River north, Nunavut, NTS 56-O north
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AuthorDredge, L A
SourceGeological Survey of Canada, Canadian Geoscience Map 384, 2018, 1 sheet, https://doi.org/10.4095/313018 (Open Access)
Image
Year2018
PublisherNatural Resources Canada
Documentserial
Lang.English
Maps1 map
Map Info.surficial geology, sediments, landforms, features, 1:100,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 15 (NAD83)
Mediaon-line; digital
File formatreadme
File formatpdf (Adobe® Reader®); rtf; gdb (ESRI® ArcGIS(TM) v.10.x); shp (ESRI® ArcGIS(TM) v.10.x); xml (ESRI® ArcGIS(TM) v.10.x); mxd (ESRI® ArcGIS(TM) v.10.x); tiff
ProvinceNunavut
NTS56O/09; 56O/10; 56O/11; 56O/12; 56O/13; 56O/14; 56O/15; 56O/16
AreaArrowsmith River
Lat/Long WENS -92.0000 -90.0000 68.0000 67.5000
Subjectssurficial geology/geomorphology; postglacial deposits; glacial deposits; glacial features; glacial landforms; deltas; ice contact deposits; tills; till plains; kettles; meltwater channels; paleocurrents; moraines; moraine, de geer; moraine, end; eskers; flow trajectories; drumlinoids; crag and tail; glacial flutings; kames; glacial striations; glacial lakes; glacial erosion; sands; silts; gravels; clays; boulders; permafrost; ground ice; periglacial features; thermokarst; patterned ground; ice-wedge polygons; frost boils; solifluction; glacial history; glaciation; ice flow; deglaciation; submergence; shoreline changes; depositional environment; bedrock geology; lithology; alluvial sediments; alluvial terraced sediments; marine sediments; marine deltaic sediments; marine veneer; marine blanket; glaciomarine sediments; glaciomarine deltaic sediments; glaciolacustrine sediments; glaciolacustrine deltaic sediments; glaciolacustrine blanket; glaciofluvial sediments; glaciofluvial outwash plain sediments; esker sediments; hummocky tills; till veneer; till blanket; thermokarst depressions; reworked sediments; geological contacts; terrace scarps; moraine ridges; ice-contact scarps; esker ridges; drumlinoid ridges; crag-and-tail ridges; outcrops; sample locations; cobbles; diamicton; ice-flow directions; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; index maps; aerial photographs
Viewing
Location
 
Natural Resources Canada Library - Ottawa (Earth Sciences)
 
ProgramRae Province, Synthesis of glacial history, GEM2: Geo-mapping for Energy and Minerals
Released2018 12 17
AbstractThe Arrowsmith River north map area consists primarily of rocky uplands, till plains, and postglacial marine deposits. The till plains are cut by subglacial meltwater corridors filled with reworked till, eskers, and other ice-contact deposits, as well as by postglacial outwash. Glacial lakes were present where bedrock topography or surficial deposits blocked drainage to the north. Streamlined landforms indicate ice flow to the north and later to the north-northeast. De Geer moraines along Kellett River indicate ice recession towards the southwest, although terrestrial end moraines and ice-marginal channels show that ice recession was primarily southward. Glaciomarine deltas and postglacial marine deposits, consisting of silty deposits capped by sand, penetrate into the valleys of the Arrowsmith and Kellett rivers. These deposits reach elevations of 190 m a.s.l. in the west and rise to 220 m a.s.l. in the east, with isobases following a northwest-southeast trend.
Summary(Plain Language Summary, not published)
The Arrowsmith River north map (NTS 56-O north) in Nunavut identifies glacial and marine surficial sediments and landforms left by the retreat of the Laurentide Ice Sheet and post-glacial sea which covered the area until about 8000 years ago. The surficial geology is based on the interpretation of aerial photos and LANDSAT 8 imagery. This work was undertaken to provide new geological knowledge and improve our understanding of the distribution, nature and glacial history of surficial materials in the Rae Geological Province. The map will support informed decision making for resource development and land use.
GEOSCAN ID313018