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TitleSurficial geology, Cottonwood, British Columbia
DownloadDownloads
AuthorBlais-Stevens, A; Clague, J J
SourceGeological Survey of Canada, Open File 5270, 2007, 1 sheet; 1 CD-ROM, https://doi.org/10.4095/223223
Year2007
Documentopen file
Lang.English
Maps1 map
Map Info.surficial geology, surficial materials, landforms, 1:50,000
Mediapaper; on-line; CD-ROM; digital
File formatreadme / lisez-moi
File formataep (ESRI® ArcExplorer(TM) v.2.0, is included / est fourni); aux (ESRI® ArcExplorer(TM) v.2.0, is included / est fourni); bmp; dbf (ESRI® ArcExplorer(TM) v.2.0, is included / est fourni); doc (Microsoft Word); e00 (ESRI® ArcExplorer(TM) v.2.0, is included / est fourni); pdf (Adobe® Acrobat® Reader® v. 4 +); rrd (ESRI® ArcExplorer(TM) v.2.0, is included / est fourni); shp (ESRI® ArcExplorer(TM) v.2.0, is included / est fourni); tif; txt; xml; JPEG2000
ProvinceBritish Columbia
NTS93G/01
AreaCottonwood; Cottonwood River; Barlow Creek; Ten Mile Lake; Lightning Creek; Umiti Creek; Genevieve Lake; Ahbau Lake; Ahbau Creek; John Boyd Creek; Alice Creek; Bellos Lake; Barlow
Lat/Long WENS-122.5000 -122.0000 53.2500 53.0000
Subjectssurficial geology/geomorphology; postglacial deposits; organic deposits; peat; fens; bogs; alluvial deposits; fluvial deposits; alluvial fans; flood plains; terraces; colluvial deposits; mass wasting; slope failures; landslides; landslide deposits; debris flow deposits; slopewash deposits; hummocks; slope deposits; glacial deposits; glacial features; glacial landforms; glacial lake deposits; tills; proglacial deposits; glaciolacustrine deposits; glacial lakes; rhythmites; glaciofluvial deposits; ice contact deposits; kettles; eskers; ice movement directions; drumlins; crag and tail; glacial flutings; landforms; escarpments; glaciation; Wisconsinian glacial stage; paleodrainage; meltwater channels; paleogeomorphology; depositional environment; sediment reworking; boulders; gravels; sands; silts; clays; gravel, commodity; paleotopography; Interior Plateau; Fraser Basin; Fraser Glaciation; diamictons; rock fall deposits; cobbles; pebbles; landslide scars; Phanerozoic; Cenozoic; Quaternary
Illustrationslocation maps
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Location
 
Natural Resources Canada Library - Ottawa (Earth Sciences)
 
Natural Resources Canada library - Calgary (Earth Sciences)
 
Natural Resources Canada library - Vancouver (Earth Sciences)
 
Geological Survey of Canada (Atlantic)
 
Natural Resources Canada library - Québec (Earth Sciences)
 
ProgramReducing Risk from Natural Hazards
LinksOther maps in this survey - Autres cartes de la même étude
LinksMetadata - Métadonnées
Released2007 01 01; 2007 02 01
AbstractThe surficial geology of the Cottonwood map area provides a record of the late Quaternary history of central British Columbia near the centre of the former Cordilleran Ice Sheet. The map depicts a variety of sediment units of glacial and non-glacial origin superposed on a hillshade derived from a Digital Elevation Model (DEM). From oldest to youngest, the units are bedrock, till, glaciofluvial deposits, glaciolacustrine deposits, colluvium, alluvium, and organic deposits. Till, the most aerially extensive deposit, was deposited by glacier ice and consists of boulder- to pebble-sized clasts in a matrix of sand, silt, and clay. Till underlies north-trending drumlins that indicate ice flow to the north. Glaciofluvial deposits consist of stratified, well-sorted to poorly-sorted sand and gravel. They are associated with eskers, terraces, and blankets. Some glaciofluvial deposits are kettled. Glaciolacustrine deposits comprise sand, silt, and clay deposited in a former glacial lake impounded by decaying ice masses. Colluvium is derived mainly from glaciolacustrine deposits that failed along river banks. Alluvium consists of fine silt, sand, and minor gravel deposited along modern streams after deglaciation. Organic deposits include peat and organic-rich mud that have accumulated in poorly drained depressions formed in older sediments and bedrock.
GEOSCAN ID223223