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TitleSurficial geology, Schultz Lake South, Nunavut
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AuthorMcMartin, I; Dredge, L A; Aylsworth, J M
SourceGeological Survey of Canada, "A" Series Map 2120A, 2008, 1 sheet; 1 CD-ROM, https://doi.org/10.4095/224825
Year2008
PublisherNatural Resources Canada
Documentserial
Lang.English
Maps1 map
Map Info.surficial geology, surficial materials, landforms, 1:100,000
Mediapaper; CD-ROM; digital; on-line
File formatreadme / lisez-moi
File formate00 (ESRI® ArcExplorerTM v. 2.0, is included / est fourni); shp; pdf; tif; JPEG2000
ProvinceNunavut
NTS66A/01; 66A/02; 66A/03; 66A/04; 66A/05; 66A/06; 66A/07; 66A/08
AreaSchultz Lake South; Thom Lake; Long Lake; Pitz Lake; Judge Sissons Lake; Princess Mary Lake; Baker Lake
Lat/Long WENS-98.0000 -96.0000 64.5000 64.0000
Subjectssurficial geology/geomorphology; Holocene; Pleistocene; Wisconsinian glacial stage; postglacial deposits; fluvial deposits; landforms; flood plains; marine deposits; beach ridges; shoreline changes; glaciolacustrine deposits; proglacial lakes; ice margins; ice rafting; glaciofluvial deposits; outwash deltas; outwash fans; valley trains; deltaic sediments; ice contact deposits; proglacial deposits; glacial deposits; glacial features; moraines; kettles; eskers; kames; hummocks; tills; till plains; glacial flutings; drumlins; lag deposits; drumlinoids; crag and tail; roches moutonnees; glacial striations; striae; glacial history; glaciation; ice flow; ice movement directions; meltwater channels; gravels; sands; boulders; silts; depositional environment; bedrock topography; glacial erosion; permafrost; Cenozoic; Quaternary
Illustrationssketch maps
ProgramNorthern Resources Development Program
LinksMetadata - Métadonnées
Image
Released2008 03 01
AbstractMap A2120 - The geoscientific data presented on this map were collected during the Western Churchill Metallogeny Project (2003-2006) by the Geological Survey of Canada. It builds on previous surficial mapping in the area by the GSC in the 1980's at 1:125 000 scale by Aylsworth, Cunningham and Shilts (1990). The map is based on field work, air-photo interpretation (1:60 000 scale aerial photographs), Landsat TM-7 and Radarsat-1 imagery, and drift composition data. The Schultz Lake South map area was located beneath a zone of outflow within the Laurentide Ice Sheet, possibly through much of its Wisconsinan history. Nonetheless, the profusion of multi-faceted bedrock outcrops, intersecting striations, superimposed streamlined landforms and stacked till units of distinct provenance, indicate that ice-flow directions significantly changed through time as a result of the migration of the main ice divide in the region. Drift is relatively thick (>5 m) and continuous in the western part of the map area, forming rolling till plains, commonly streamlined in different directions. In contrast, thin till (<2 m) is predominant in the east. Following deglaciation, the area was inundated by the postglacial Tyrrell Sea. Extensive glacial marine deposits cover the southeastern part of the map area with thicknesses ranging from a thin veneer to tens of metres.
GEOSCAN ID224825