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TitleSurficial geology, Ashuanipi River, Newfoundland and Labrador, NTS 23-I southwest
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AuthorCampbell, H E; Paulen, R C; Rice, J M
SourceGeological Survey of Canada, Canadian Geoscience Map 346, 2018, 1 sheet, https://doi.org/10.4095/306431
Year2018
PublisherNatural Resources Canada
Editionprelim.
Documentserial
Lang.English
Maps1 map
Map Info.surficial geology, sediments, landforms, features, 1:100,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 20 (NAD83)
Mediaon-line; digital
RelatedThis publication is related to Paulen, R C; Rice, J M; McClenaghan, M B; (2017). Surficial geology, northwest Smallwood Reservoir, Newfoundland and Labrador, NTS 23-I southeast, Geological Survey of Canada, Canadian Geoscience Map no. 315, ed. Prelim.
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/03; 23I/04; 23I/05; 23I/06
AreaAshuanipi River; Labrador; Wade Lake; Woods Lake; Smallwood Reservoir
Lat/Long WENS -66.0000 -65.0000 54.5000 54.0000
Subjectssurficial geology/geomorphology; postglacial deposits; organic deposits; peat; swamps; bogs; fens; alluvial deposits; lacustrine deposits; storm deposits; ice rafting; water levels; shoreline changes; beach deposits; beach ridges; glacial deposits; glacial features; glacial landforms; glaciolacustrine deposits; glacial lakes; proglacial lakes; littoral deposits; glaciofluvial deposits; outwash plains; drift deposits; outwash fans; hummocks; ice contact deposits; kames; eskers; tills; clasts; till ridges; moraines; moraine, ribbed; kettles; scarps; raised beaches; shoreline changes; paleogeography; meltwater channels; flow trajectories; drumlinoids; crag and tail; glacial striations; ice flow; ice movement directions; glacial flutings; permafrost; periglacial features; frost heaving; frost boils; solifluction; gravels; sands; silts; clays; boulders; glacial history; glaciation; Wisconsinian glacial stage; ice sheets; deglaciation; depositional environment; sedimentary structures; bedrock geology; lithology; Laurentide Ice Sheet; Labrador Ice Divide; Glacial Lake Low; Core Zone; De Pas Batholith; Kaniapiskau Supergroup; Doublet Zone; New Quebec Orogen; Wakuach Gabbros; diamicton; cobbles; pebbles; nearshore deposits; winnowed sediments; 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
Released2018 03 01
AbstractThe Ashuanipi map area lies south of the ancestral Labrador ice divide of the Laurentide Ice Sheet. The combined record of striations and large-scale streamlined landforms reveal three phases of ice flow (oldest to youngest): northeast, south-southeast, and east-southeast. Erosional and depositional features throughout the map area distinguish the distinct glacial domains. Till veneer with channels and bedrock eroded by glacial meltwater was observed in higher elevation terrain north of Ashuanipi River, and also in the uplands formed by the Paleoproterozoic De Pas batholith to the east. Ribbed moraines, eskers, and streamlined landforms characterize the area southeast of Wade Lake. Extensive lowland fens, glaciolacustrine strandlines, and wave-cut benches that surround isolated streamlined till units in the central portion of the map area mark the former inundation of a large, shallow glacial lake (glacial Lake Low), the basin of which is occupied by the present-day Smallwood Reservoir.
Summary(Plain Language Summary, not published)
Surficial geology map, constructed from fieldwork undertaken in 2014 to 2016, as part of the GEM2 Hudson-Ungava Core Zone Surficial Activity. This map shows the surface distribution of bedrock and glacial sediments at 1:100,000 scale, which is important for future mineral exploration and land use planning.
GEOSCAN ID306431