| Titre | Surficial geology, Ahbau Lake, British Columbia |
| Télécharger | Téléchargements |
| |
| Licence | Veuillez noter que la Licence du gouvernement
ouvert - Canada remplace toutes les licences antérieures. |
| Auteur | Blais-Stevens, A ;
Clague, J J |
| Source | Commission géologique du Canada, Dossier public 5273, 2007, 1 feuille; 1 CD-ROM, https://doi.org/10.4095/223234  Accès ouvert |
| Liens | Other maps in this survey - Autres cartes de la même étude
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| Liens | Metadata - Métadonnées
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| Image |  |
| Année | 2007 |
| Éditeur | Ressources naturelles Canada |
| Document | dossier public |
| Lang. | anglais |
| DOI | https://doi.org/10.4095/223234 |
| Cartes | 1 carte |
| Info. carte | dépôts meubles, 1/50,000 |
| Media | papier; en ligne; CD-ROM; numérique |
| Liens | readme / lisez-moi
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| Formats | aep (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 |
| Province | Colombie-Britannique |
| SNRC | 93G/08 |
| Région | Ahbau Lake; Naver Creek; Genevieve Lake; Ahbau Creek; Lodi Lake; Willow River; Meadowbank Creek; Yardley Lake; Colebank Lake; Neck Lake; Terry Creek; Hixon Creek; Teapot Lake; Dunkley |
| Lat/Long OENS | -122.5000 -122.0000 53.5000 53.2500 |
| Sujets | dépôts postglaciaires; dépôts organiques; tourbe; tourbières minérotrophes; tourbières aligotrophes; alluvions; dépôts fluviaux; cônes alluviaux; plaines d'inondation; terrasses; colluvions; mouvement de
masse; glissements de pentes; glissements de terrain; dépôts de glissement de terrain; dépôts de coulée de débris; dépôts de matériaux transportés par ruissellement diffus; buttes; dépôts de pentes; dépôts glaciaires; elements glaciaires; topographie
glaciaire; dépôts de lacs glaciaires; tills; dépôts proglaciaires; dépôts glaciolacustres; lacs glaciaires; rythmites; dépôts fluvioglaciaires; sediments de contact glaciaire; kettles; eskers; directions des mouvements de la glace; drumlins;
crag-and-tail; rainures glaciaires; topographie; escarpements; glaciation; Wisconsinien; paléodrainage; chenaux d'eau de fonte; paléogéomorphologie; milieu sédimentaire; déplacement des sédiments; blocs; graviers; sables; silts; argiles; gravier,
dérivé; paléotopographie; Plateau d'Interior ; Glaciation de Fraser ; Plateau de Fraser ; cicatrices de glissements de terrain; géologie des dépôts meubles/géomorphologie; Phanérozoïque; Cénozoïque; Quaternaire |
| Illustrations | cartes de localisation |
| Programme | Réduction des risques dus aux aléas naturels |
| Diffusé | 2007 01 01 |
| Résumé | (disponible en anglais seulement)
The surficial geology of the Ahbau Lake 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 ID | 223234 |
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