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TitleReconnaissance surficial geology, Beechey Lake, Nunavut, NTS 76-G
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorKerr, D E
SourceGeological Survey of Canada, Canadian Geoscience Map 447, 2022, 1 sheet, Open Access logo Open Access
LinksSurficial geology map collection
LinksCollection de données de géologie de surface
PublisherNatural Resources Canada
Maps1 map
Map Info.surficial geology, sediments, landforms, features, 1:125,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 13 (NAD83)
Mediadigital; on-line
RelatedThis publication is related to the following publications
File formatreadme
File formatpdf; 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); xls (Microsoft® Excel® 2010)
AreaBeechey Lake
Lat/Long WENS-108.0000 -106.0000 66.0000 65.0000
Subjectssurficial geology/geomorphology; Nature and Environment; Science and Technology; postglacial deposits; organic deposits; raised beaches; deltas; alluvial fans; dunes; glacial deposits; glacial landforms; glacial features; tills; moraines; glacial lakes; ice contact deposits; eskers; glacial flutings; glacial scours; kettles; meltwater channels; paleocurrents; kames; drumlinoids; drumlins; crag and tail; glacial striations; sands; silts; gravels; boulders; clays; glacial history; glaciation; deglaciation; ice flow; ice margins; paleodrainage; permafrost; ground ice; periglacial features; thermokarst; ice-wedge polygons; felsenmeer; solifluction; depositional environment; snowpacks; icings; eolian sediments; alluvial sediments; alluvial floodplain sediments; alluvial terraced sediments; lacustrine sediments; glaciomarine sediments; glaciomarine deltaic sediments; glaciolacustrine sediments; glaciolacustrine beach sediments; glaciolacustrine deltaic sediments; glaciofluvial sediments; glaciofluvial outwash plain sediments; glaciofluvial terraced sediments; esker sediments; hummocky tills; ridged tills, moraine; streamlined tills; till veneer; till blanket; geological contacts; landslide scars; thermokarst depressions; dune crests; terrace scarps; beach crests; subglacial meltwater corridors; moraine ridges; ice-contact scarps; esker ridges; drumlinoid ridges; drumlin ridges; crag-and-tail ridges; pre-crag ridges; ice-flow directions; fluted drift; fluted bedrock; outcrops; station locations, ground observation; submergence, lacustrine; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; index maps; aerial photographs
ProgramClimate Change Geoscience Coastal Infrastructure
Released2022 10 25
AbstractPreliminary mapping studies of Beechey Lake map area, through aerial photograph interpretation and limited legacy data, improve our understanding of surficial sediments and glacial history. The area is dominated by glacially and meltwater-scoured bedrock, hummocky moraine, till of varying thickness occasionally streamlined, and thin ridged till. Glacial lake sediments are predominantly in river valley lowlands. Glaciolacustrine delta and raised beach elevations range from 410 m to 230 m and 440 m to 290 m, respectively. Glaciofluvial deposits consist of eskers, ice-contact mounds, proglacial outwash plains, and terraces. Basal meltwater from regional ice stagnation and downwasting scoured subglacial and proglacial meltwater corridors and channels of varying width, many trending northwest. A glaciomarine delta was deposited in a high-sea marine environment following deglaciation in the northernmost map area. Streamlined till and bedrock landforms and striations indicate regional ice flow was dominantly northwest. A late westward and southwestward deglacial ice flow is preserved sporadically in the easternmost map area, and well preserved in the west-central and southwestern map areas, west of a discontinuous hummocky moraine belt.
Summary(Plain Language Summary, not published)
The map identifies surficial materials and associated landforms left by the retreat of the last glaciers. The surficial geology is based on aerial photograph interpretation. This work provides new geological knowledge and improves our understanding of the distribution, nature and glacial history of surficial materials. The map supports informed decision making for resource assessments, development, and effective land use management.

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