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TitleReconnaissance surficial geology, Leith Peninsula, Northwest Territories, NTS 86-E
DownloadDownloads
AuthorKerr, D E; O'Neill, H B
SourceGeological Survey of Canada, Canadian Geoscience Map 409, 2019, 1 sheet, https://doi.org/10.4095/314705 (Open Access)
Image
Year2019
PublisherNatural Resources Canada
Documentserial
Lang.English
Maps1 map
Map Info.surficial geology, sediments, landforms, features, 1:125,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 11 (NAD83)
Mediaon-line; digital
RelatedNRCan photo(s) in this publication
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)
ProvinceNorthwest Territories
NTS86E
AreaLeith Peninsula
Lat/Long WENS-120.0000 -118.0000 66.0000 65.0000
Subjectssurficial geology/geomorphology; postglacial deposits; organic deposits; eolian deposits; colluvial deposits; landslides; alluvial fans; glacial deposits; glacial landforms; glacial features; glacial lakes; ice contact deposits; tills; till ridges; moraines; moraine, end; moraine, ribbed; glacial flutings; glacial scours; kettles; terraces; scarps; meltwater channels; eskers; paleocurrents; beach ridges; drumlinoids; drumlins; crag and tail; kames; glacial striations; ice flow; permafrost; ground ice; periglacial features; thermokarst; silts; sands; gravels; boulders; clays; glacial history; glaciation; deglaciation; shoreline changes; isostatic rebound; depositional environment; Glacial Lake McConnell; bog deposits; alluvial sediments; alluvial floodplain sediments; alluvial terraced sediments; lacustrine sediments; glaciolacustrine sediments; glaciolacustrine beach sediments; glaciolacustrine deltaic sediments; glaciolacustrine veneer; glaciofluvial sediments; glaciofluvial outwash plain sediments; glaciofluvial outwash fan sediments; glaciofluvial hummocky sediments; esker sediments; interlobate morraine; hummocky tills; streamlined tills; till veneer; till blanket; geological contacts; landslide scars; beach crests; ice-contact scarps; crevasse ridges; ice-flow directions; tundra ponds; diamicton; cobbles; outcrops; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps; index maps; photographs
ProgramMackenzie Corridor, North Bear Surficial Mapping, GEM2: Geo-mapping for Energy and Minerals
Released2019 07 05
AbstractThe Leith Peninsula map area is characterized by three distinct terrain types differentiated by surficial sediment cover and associated landforms. An extensive zone of generally low-lying bedrock-dominated terrain with little sediment cover dominates the eastern regions from Hottah Lake to McTavish Arm. The central and western regions below 280-290 m a.s.l. are covered by various glaciolacustrine sediments, including well developed raised beaches. The southwestern and central highlands rise from 300 m a.s.l. to 500 m a.s.l. and consist of different till units with glacial flutings, moraine ridges, and meltwater channels. In all terrain types, glaciofluvial eskers generally trend westward to northwestward. During the last glaciation, ice advanced westward, deviating slightly to west-northwestward toward McVicar Arm and McTavish Arm. Minor local variations in ice-flow direction are recorded by striations, crag-and-tail features, and fluted bedrock. Glacial Lake McConnell generally inundated the land in the region up to 290 m a.s.l., and up to 300 m a.s.l. to 305 m a.s.l. in some locations due to local ice configuration.
Summary(Plain Language Summary, not published)
The Leith Peninsula map (NTS 86-E) identifies surficial materials and associated landforms left by the retreat of the last glaciers. The surficial geology is based on aerial photograph interpretation, with outcrops and striations from previous publications. This work provides new geological knowledge and improves our understanding of the distribution and nature of the surficial geology cover, and the glacial history of this region. It contributes to resource assessments and effective land use management
GEOSCAN ID314705