GEOSCAN Search Results: Fastlink


TitleReconnaissance surficial geology, Arctic Sound, Nunavut, NTS 76-N
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorKerr, D E
SourceGeological Survey of Canada, Canadian Geoscience Map 423, 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 12 (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)
AreaArctic Sound; James River
Lat/Long WENS-110.0000 -108.0000 68.0000 67.0000
Subjectssurficial geology/geomorphology; Nature and Environment; Science and Technology; postglacial deposits; organic deposits; colluvial deposits; fans; landslides; landslide deposits; talus; alluvial fans; marine sediments; glacial deposits; glacial features; glacial landforms; ice contact deposits; eskers; tills; kettles; moraines; drumlinoids; crag and tail; kames; glacial striations; meltwater channels; paleocurrents; beach ridges; drumlins; glacial flutings; roches moutonnees; glacial lakes; water levels; glacial scours; clays; silts; sands; gravels; boulders; glacial history; glacial stages; Wisconsinian glacial stage; glaciation; ice flow; deglaciation; depositional environment; shoreline changes; sea level changes; isostatic rebound; postglacial emergence; permafrost; ground ice; periglacial features; thermokarst; patterned ground; solifluction; ice-wedge polygons; massive ice; landforms; dunes; escarpments; sedimentary structures; Wisconsin Glaciation; snowpacks; icings; eolian sediments; colluvial and mass-wasting veneer; colluvial and mass-wasting blanket; alluvial sediments; alluvial floodplain sediments; alluvial terraced sediments; lacustrine sediments; marine beach sediments; marine deltaic sediments; marine littoral sediments; marine veneer; marine blanket; glaciomarine sediments; glaciomarine deltaic sediments; glaciomarine veneer; glaciomarine blanket; glaciolacustrine sediments; glaciolacustrine deltaic sediments; glaciofluvial sediments; glaciofluvial outwash plain sediments; esker sediments; hummocky tills; till veneer; till blanket; dune crests; gullied terrain; geological contacts; landslide escarpments; landslide scars; terrace scarps; limit of submergence, marine; subglacial meltwater corridors; moraine ridges; esker ridges; drumlinoid ridges; drumlin ridges; crag-and-tail ridges; pre-crag ridges; ice-flow directions; outcrops; station locations, ground observation; retrogressive thaw flows; Phanerozoic; Quaternary; Cenozoic
Illustrationslocation maps; index maps; aerial photographs
ProgramClimate Change Geoscience
Released2022 03 08
AbstractThe Arctic Sound map area consists primarily of glacially scoured bedrock, minor till in the southwest, and postglacial marine sediments in coastal lowlands and inland along river valleys. The till deposits are cut to bedrock by subglacial meltwater corridors defined by eskers and other glaciofluvial sediments. Glacial lakes occupied the James River valley where retreating or stagnant ice blocked drainage to the east. Glaciolacustrine deltas record falling lake levels, from 310 m to 290 m and 260 m elevation. Striations and streamlined landforms indicate ice flow to the north-northwest, and later crosscutting relationships recording minor variations locally. Orientation of minor moraines, eskers, and outwash plains suggest ice recession was primarily southeastward. A series of small glaciomarine deltas following a northwest-southeast trend, and postglacial marine deltas and fine-grained sediments, reach elevations of 210 m in the northwest and 200 m in the southeast. Isostatic rebound caused marine regression, forming raised beaches from 210 m elevation to current sea level.
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 and fieldwork. 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.

Date modified: