| Titre | Surficial geology, southeastern portion of the Prince George map area 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 5274, 2007, 1 feuille; 1 CD-ROM, https://doi.org/10.4095/224162  Accès ouvert |
| Liens | Metadata - Métadonnées
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| Image |  |
| Année | 2007 |
| Éditeur | Ressources naturelles Canada |
| Document | dossier public |
| Lang. | anglais |
| DOI | https://doi.org/10.4095/224162 |
| Cartes | 1 carte |
| Info. carte | dépôts meubles, 1/100,000 |
| Media | papier; CD-ROM; numérique; en ligne |
| 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;
JPEG2000 |
| Province | Colombie-Britannique |
| SNRC | 93G/01; 93G/02; 93G/07; 93G/08 |
| Région | Prince George |
| Lat/Long OENS | -123.0000 -122.0000 53.5000 53.0000 |
| Sujets | dépôts postglaciaires; dépôts organiques; tourbe; tourbières minérotrophes; tourbières aligotrophes; alluvions; dépôts fluviaux; plaines d'inondation; cônes alluviaux; terrasses; colluvions; dépôts de
glissement de terrain; dépôts de pentes; mouvement de masse; buttes; Wisconsinien; dépôts glaciaires; dépôts proglaciaires; dépôts glaciolacustres; dépôts fluvioglaciaires; topographie glaciaire; elements glaciaires; sediments de contact glaciaire;
tills; rythmites; dépôts de coulée de débris; lacs glaciaires; chenaux d'eau de fonte; dépôts de matériaux transportés par ruissellement diffus; caractéristiques de désagrégation glaciaire; kettles; eskers; drumlins; crag-and-tail; rainures
glaciaires; stabilité des pentes; glissements de pentes; glissements de terrain; escarpements; sables; graviers; silts; argiles; blocs; Glaciation de Fraser ; géologie des dépôts meubles/géomorphologie; Phanérozoïque; Cénozoïque;
Quaternaire |
| Illustrations | cartes de localisation |
| Programme | Réduction des risques dus aux aléas naturels |
| Diffusé | 2007 08 01 |
| Résumé | (disponible en anglais seulement)
The surficial geology of the southeastern portion of the Prince George 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 | 224162 |
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