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Hydrogeology Journal

Erschienen in:

01.05.2007 | Paper

DRASTIC-Fm: a modified vulnerability mapping method for structurally controlled aquifers in the southern Gulf Islands, British Columbia, Canada

verfasst von: S. C. Denny, D. M. Allen, J. M. Journeay

Erschienen in: Hydrogeology Journal | Ausgabe 3/2007

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Abstract

DRASTIC, the methodology for mapping the intrinsic vulnerability of aquifers, is modified to incorporate the structural characteristics of fractured bedrock aquifers. In these aquifers, groundwater flow is predominantly through fractures, with large-scale fracture zones and faults acting as primary conduits for flow at the regional scale. The methodology is applied to the southern Gulf Islands region of southwestern British Columbia, Canada. Bedrock geology maps, soil maps, structural measurements, mapped lineaments, water-well information and topographic data, assembled within a comprehensive GIS database, form the basis for assigning traditional DRASTIC indices, while adding the structural indices necessary for capturing the importance of regional structural elements in recharge and well capture zone determinations.

Vorheriger Artikel Well productivity controlling factors in crystalline terrains of southeastern Brazil

Nächster Artikel Groundwater and surface-water interactions in a confined alluvial aquifer between two rivers: effects of groundwater flow dynamics on high iron anomaly

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Titel: DRASTIC-Fm: a modified vulnerability mapping method for structurally controlled aquifers in the southern Gulf Islands, British Columbia, Canada
verfasst von: S. C. Denny
D. M. Allen
J. M. Journeay
Publikationsdatum: 01.05.2007
Verlag: Springer-Verlag
Erschienen in: Hydrogeology Journal / Ausgabe 3/2007
Print ISSN: 1431-2174
Elektronische ISSN: 1435-0157
DOI: https://doi.org/10.1007/s10040-006-0102-8

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