| Titre | Deglacial history of the Champlain Sea basin and implications for urbanization |
| Télécharger | Téléchargements |
| Auteur | Russell, H A J (éd.); Brooks, G R (éd.); Cummings, D I (éd.) |
| Source | Commission géologique du Canada, Dossier public 6947, 2011, 96 pages, https://doi.org/10.4095/289555 (Accès ouvert) |
| Année | 2011 |
| Réunion | Joint Annual Meeting of the Geological Association of Canada, the Mineralogical Association of Canada, the Society of Economic Geologists and the Society for Geology Applied to Mineral Deposits;
Ottawa; CA; mai 25-27, 2011 |
| Document | dossier public |
| Lang. | anglais |
| DOI | https://doi.org/10.4095/289555 |
| Media | en ligne; numérique |
| Référence reliée | Cette publication contient les publications suivantes |
| Formats | pdf |
| Province | Ontario; Québec |
| SNRC | 31G/03; 31G/05; 31G/06; 31G/13 |
| Lat/Long OENS | -76.0000 -75.0000 46.0000 45.0000 |
| Sujets | dépôts glaciaires; antecedents glaciaires; déglaciation; géologie urbaine; planification urbaine; bassins; secousses séismiques; risque de tremblement de terre; catalogues des tremblements de terre;
topographie glaciaire; eskers; drumlins; cônes alluviaux; eau souterraine; stabilité des pentes; glissements de pentes; chenaux d'eau de fonte; argiles; argiles sensibles; tills; graviers; sables; diamictites; sismicité; ondes sismiques; propagation
des ondes; milieu sédimentaire; stratification; Bassin de Champlain Sea ; géologie des dépôts meubles/géomorphologie; géologie de l'environnement; géologie de l'ingénieur; hydrogéologie; géophysique; stratigraphie; Cénozoïque; Quaternaire |
| Illustrations | location maps; tables; stratigraphic columns; photographs; cross-sections; models; profiles; plots |
| Programme | Aquifer Assessment & support to mapping, Géoscience des eaux
souterraines |
| Diffusé | 2011 12 02 |
| Résumé | (disponible en anglais seulement)
The Champlain Sea was an inland arm of the Atlantic Ocean that inundated the St. Lawrence Lowland following retreat of the Laurentide Ice Sheet. The
fine-grained sediments deposited in this sea have important implications for urbanization (e.g. slope stability, foundation design, seismic hazard assessment) of the National Capital Region. This two-day field trip reviews aspects of the deglacial
landforms and deposits of the area, the Champlain Sea deposits, and reviews the societal implications from the perspectives of hydrogeology and natural hazards. On day one, a visit to the Vars-Winchester esker and environs provides the setting for
discussing eskers and Champlain Sea deposits and the importance of these features with respect to regional hydrogeological issues. On day two, the focus shifts to natural hazards, with visits to a cluster of earth-flow scars at Breckenridge, Quebec,
and an earth flow near Notre-Dame-de-la-Salette, Quebec, that was triggered by an earthquake on June 23, 2010. Discussion will focus on the seismicity of the earthquake and issues of seismic amplification due to variations in local geology. |
| GEOSCAN ID | 289555 |
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