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TitreKarst and hazards lands Mitigation: some guidelines for geological and geotechnical investigations in Ontario karst terrains
TéléchargerTéléchargement (publication entière)
AuteurBrunton, F R
SourceRegional-scale groundwater geoscience in southern Ontario: an Ontario Geological Survey, Geological Survey of Canada, and Conservation Ontario open house; par Russell, H A J; Ford, D; Priebe, E H; Commission géologique du Canada, Dossier public 8212, 2017 p. 4, (Accès ouvert)
ÉditeurRessources naturelles Canada
RéunionOntario Geological Survey and Geological Survey of Canada groundwater geoscience open house; Guelph; CA; mars 1-2, 2017
Documentdossier public
Mediaen ligne; numérique
Référence reliéeCette publication est contenue dans Russell, H A J; Ford, D; Priebe, E H; (2017). Regional-scale groundwater geoscience in southern Ontario: an Ontario Geological Survey, Geological Survey of Canada, and Conservation Ontario open house, Commission géologique du Canada, Dossier public 8212
SNRC30; 31B; 31C; 31D; 31E; 31G; 40; 41A; 41G; 41H/03; 41H/04; 41H/05; 41H/06; 41H/12; 41H/13
Lat/Long OENS -84.0000 -74.0000 46.0000 41.5000
Sujetstopographie karstique; utilisation du terrain; planification; régimes des eaux souterraines; écoulement de la nappe d'eau souterraine; géologie de l'ingénieur; géologie générale; géologie des dépôts meubles/géomorphologie; Santé et sécurité; Phanérozoïque; Paléozoïque; Dévonien; Silurien; Ordovicien; Cambrien
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
ProgrammeAquifer Assessment & support to mapping, Géoscience des eaux souterraines
Diffusé2017 02 22
Résumé(disponible en anglais seulement)
The mandate of the Ontario Geological Survey is to provide citizens and institutions of Ontario with accurate and objective earth science knowledge about Ontario, in order to sustain and support quality of life, economic prosperity, environmental quality, and public health and safety. The OGS does not comment on best practices or recommended approaches for reviewing and approving changes to landuse or development applications in karst terrains. Various Ontario ministries - the Ontario Geological Survey (MNDM) and the Ministry of Natural Resources & Forestry (MNRF), Municipal Affairs and Housing (MMAH), and Agriculture and Food and Rural Affairs (OMAFRA) have been reviewing existing policies related to land-use and development throughout southern Ontario and Manitoulin Island to update hazard lands guidelines, nutrient management practices and to develop best practices documents for various forms of development in karst terrains.
The main purpose of the Ontario Geological Survey Karst Mitigation field-based research is to provide a more comprehensive summary of the kinds of geoscience field work and data sets that could be integrated into field-based studies in order to address gaps in the current guidelines framework (e.g., Natural Hazards Technical Guidance documents for use with the current Ontario Provincial Policy Statement). A "best practices" approach to addressing karst hazards should be carried out in a staged manner, one that involves a general geologic- and geomorphologic-data-gathering desktop investigation (Phase 1 study) that would progress to a more detailed field-based study (Phase 2) to quantify and qualify identified karst terrain hazards (i.e., progress from Phase 1- to Phase 2-level site investigation depending upon nature of land use or development project being proposed). An overview of proposed best practices for investigating karst hazards in Ontario and an innovative "toolkit" for investigating karst-influenced groundwater flow zones will be reviewed in this presentation.