GEOSCAN Search Results: Fastlink


TitleSurficial geology, Dendale Lake, Yukon-Northwest Territories, NTS 95-C/15
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorGeological Survey of Canada
SourceGeological Survey of Canada, Canadian Geoscience Map 456, 2023, 1 sheet, Open Access logo Open Access
LinksSurficial geology map collection
LinksCollection de données de géologie de surface
PublisherNatural Resources Canada
Editionsurficial data model v.2.4 conversion
Maps1 map
Map Info.surficial geology, sediments, landforms, features, 1:50,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 10 (NAD83); Universal Transverse Mercator Projection, UTM zone 15 (NAD83)
Mediaon-line; digital
RelatedNRCan photo(s) in this publication
RelatedThis publication is related to the following publications
File formatreadme
File formatpdf
ProvinceYukon; Northwest Territories
AreaDendale Lake
Lat/Long WENS-125.0000 -124.5000 61.0000 60.7500
Subjectssurficial geology/geomorphology; geochronology; Nature and Environment; Science and Technology; organic deposits; peat; bogs; fens; colluvial deposits; mass wasting; talus; landslide deposits; slumps; rock glaciers; alluvial deposits; gravels; sands; silts; flood plains; alluvial fans; terraces; Wisconsinian glacial stage; glaciolacustrine deposits; deltaic sediments; deltas; glaciofluvial deposits; outwash plains; fans; ice contact deposits; kames; till deposits; bedrock geology; sedimentary rocks; sandstones; shales; thermokarst; palsa bogs; paleodrainage; meltwater channels; moraines; drumlinoids; drumlins; clasts; striations; cirques; Mattson Formation; Besa River Formation; Sikanni Formation; Chinkeh Formation; Tika Syncline; Carboniferous; Devonian; Cretaceous
Illustrationslocation maps; index maps; tables; photographs
ProgramGEM2: Geo-mapping for Energy and Minerals Information Management
Released2023 09 08
AbstractThis map area is situated within the Hyland Plateau and comprises the headwaters of the La Biche River. It is framed by the La Biche Range on the east, the Tlogotsho Range on the north, and an unnamed ridge along its western boundary. The map area was inundated by the Cordilleran Ice Sheet during the Late Wisconsinan glaciation, and ice advanced east to northeast across the region. Coalescence with the Laurentide Ice Sheet is considered to have occurred just east and north of this area. During deglaciation, ice retreated generally south and westwards. Prominent northward-aggrading ice-contact and proglacial deltas formed between retreating Cordilleran and Laurentide ice margins, within early stages of glacial Lake Nahanni. Well-developed cirque basins point to a prolonged glacial history that predates the Late Wisconsinan glaciation. Small lobate moraines extending into valley bottoms below these cirques suggests that during regional Late Wisconsinan deglaciation, upland ice persisted through a phase of late glacial-early Holocene alpine cirque glaciation.
Summary(Plain Language Summary, not published)
This map displays the surficial geology at the north end of the La Biche River, bounded by the La Biche and Tika ranges to the east and west, respectively, and the Tlogotsho Plateau to the north. The area was inundated by the Cordilleran Ice Sheet during the late Wisconsinan glaciation, and a staircase of deltas descending northward and eastward record the retreat of the Cordilleran ice and a large proglacial lake occupying the Nahanni River valley to the north, impounded against eastward retreating Laurentide ice. Extents of landsliding in this map sheet is markedly less than in adjoining areas.

Date modified: