| Titre | An updated assessment of ground ice and permafrost geology-related observations based on seismic shothole drillers' log records, Northwest Territories and northern Yukon |
| Télécharger | Téléchargements |
| Auteur | Smith, I R; Lesk-Winfield, K |
| Source | Commission géologique du Canada, Dossier public 7061, 2012; 1 DVD, https://doi.org/10.4095/290974 (Accès ouvert) |
| Liens | Metadata - Métadonnées
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| Année | 2012 |
| Éditeur | Ressources naturelles Canada |
| Document | dossier public |
| Lang. | anglais |
| DOI | https://doi.org/10.4095/290974 |
| Media | DVD; numérique; en ligne |
| Liens | readme
|
| Formats | txt; pdf; shp; doc; html |
| Province | Territoires du Nord-Ouest; Yukon |
| SNRC | 85C; 85D; 85E; 85F; 85K; 85L; 95A; 95B; 95G; 95H; 95I; 95J; 95K; 95N; 95O; 95P; 96A; 96B; 96C; 96D; 96E; 96F; 96G; 96K; 96L; 96M; 96N; 96O; 97B; 97C; 106E; 106G; 106H; 106I; 106J; 106K; 106L; 106M; 106N;
106O; 106P; 107A; 107B; 107C; 107D; 107E; 116F; 116G; 116H; 116I; 116J; 116K; 116O; 116P; 117A; 117D |
| Lat/Long OENS | -136.1667 -116.0000 70.0000 60.0000 |
| Lat/Long OENS | -141.0000 -133.5000 69.5000 65.0000 |
| Sujets | données sismiques; lithologie; lithostratigraphie; pergélisol; congélation du sol; glace fossile; dépôts glaciaires; dépôts fluvioglaciaires; phénomènes fluvioglaciaires; topographie glaciaire; elements
glaciaires; dépôts postglaciaires; dépôts fluviaux; dépôts glaciaires; épaisseur de la couverture meuble; isopaques; aggrégats; graviers; sables; silts; argiles; blocs; glace massive; roches sédimentaires; géophysique; géologie des dépôts
meubles/géomorphologie; géologie régional; stratigraphie; hydrogéologie; géologie économique; géologie de l'environnement; Nature et environnement; Phanérozoïque; Cénozoïque; Quaternaire; Mésozoïque; Paléozoïque |
| Illustrations | tables |
| Programme | Renforcement de la résilience des communautés canadiennes face aux changements climatiques, Géosciences de changements climatiques |
| Diffusé | 2012 04 19 |
| Résumé | (disponible en anglais seulement)
This publication utilizes seismic shothole drillers' litholog records to document ground ice and massive ice thickness and extents in the Northwest Territories
and northern Yukon. It also provides estimates of permafrost thickness in areas of thin extensive and sporadic discontinuous permafrost, and the identification of unfrozen sediments (non-ice-bonded permafrost and/or existing and relic taliks) in
areas of thick permafrost cover, and in offshore Mackenzie Delta sediments. Limitations of the seismic shothole drillers' log data are clearly recognized in their application to permafrost studies (reflecting the generally shallow (10 - 60 m)
shothole depth, and logging imprecision). They nonetheless provide a rich archive of information that in some cases represents orders of magnitude more records than previously existed, that can be correlated with established monitoring sites and used
to expand regional interpretations. The information interpreted from the drillers' log records will perhaps best serve as guides to future permafrost research by identifying key areas of interest, lithostratigraphic associations, and anomalous
permafrost conditions that can be studied and tested in follow-up field research. |
| GEOSCAN ID | 290974 |
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