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TitleSurficial geology, northwest Smallwood Reservoir, Newfoundland and Labrador, NTS 23-I southeast
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AuthorPaulen, R C; Rice, J M; McClenaghan, M B
SourceGeological Survey of Canada, Canadian Geoscience Map 315, 2017, 1 sheet, https://doi.org/10.4095/300685
Year2017
PublisherNatural Resources Canada
EditionPrelim.
Documentserial
Lang.English
Maps1 map
Map Info.surficial geology, surfical deposits and features, 1:100,000
ProjectionUniversal Transverse Mercator Projection, zone 20U (NAD83)
Mediaon-line; digital
File formatreadme
File formatpdf (Adobe® Reader®); rtf; shp (ESRI® ArcGIS(TM) 10.x); gdb (ESRI® ArcGIS(TM) 10.x); xml (ESRI® ArcGIS(TM) 10.x); mxd (ESRI® ArcGIS(TM) 10.x)
ProvinceNewfoundland and Labrador
NTS23I/01; 23I/02; 23I/07; 23I/08
AreaSmallwood Reservoir; Labrador
Lat/Long WENS -65.0000 -64.0000 54.5000 54.0000
Subjectssurficial geology/geomorphology; postglacial deposits; organic deposits; swamps; bogs; fens; alluvial deposits; lacustrine deposits; storm deposits; water levels; beach deposits; littoral deposits; glacial deposits; glacial features; glacial landforms; glaciolacustrine deposits; glacial lakes; proglacial lakes; glaciofluvial deposits; outwash plains; drift deposits; outwash fans; hummocks; ice contact deposits; kames; lag deposits; eskers; tills; mass wasting; moraines; kettles; scarps; raised beaches; shoreline changes; paleogeography; meltwater channels; flow trajectories; drumlinoids; crag and tail; glacial striations; ice movement directions; lineations; glacial flutings; frost heaving; frost boils; solifluction; gravels; sands; silts; clays; boulders; glacial history; glaciation; Wisconsinian glacial stage; ice sheets; glacial erosion; deglaciation; sediment reworking; depositional environment; strandlines; wave-cut platforms; Laurentide Ice Sheet; Glacial Lake Low; Glacial Lake Naskaupi; Core Zone; Superior Craton; North Atlantic Craton; Nain Craton; diamicton; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; index maps; photographs
ProgramHudson/Ungava, Northeastern Quebec-Labrador, surficial geology, GEM2: Geo-mapping for Energy and Minerals
ProgramPolar Continental Shelf Program
Image
Released2017 07 06
AbstractApproximately 60% of the map-area is covered by the Smallwood Reservoir, created in 1974 with the damming of the Churchill River at Churchill Falls. The terrain is of moderate relief, with higher elevation regions in the northeast that correspond to the southern extent of the Paleoproterozoic De Pas Batholith and Late Archean Orma domain intrusive rocks. Three general phases of ice flow are observed in the map-area: to the northeast, southeast, and east. Meltwater corridors and eskers crosscut the southeasterly oriented glacial landforms and drained to the southeast and east towards the former ice margin. A large shallow glacial lake filled the Smallwood Reservoir basin. This glacial lake was previously unmapped. This lake is herein informally referred to as 'glacial Lake Low' named after A.P. Low of the Geological Survey of Canada, who first recognized that the final disintegration of the continental ice sheet occurred in this region.
Summary(Plain Language Summary, not published)
Surficial geology map for the northwest part of the Smallwood Reservoir, Labrador, as an output to the GEM2 program.
GEOSCAN ID300685