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TitleGround-penetrating radar survey of the Brookswood aquifer, Fraser Valley, British Columbia
DownloadDownload (whole publication)
AuthorRea, J; Knight, R; Ricketts, B D
SourceCordillera and Pacific Margin/Cordillère et marge du Pacifique; by Geological Survey of Canada; Geological Survey of Canada, Current Research no. 1994-A, 1994 p. 211-216, (Open Access)
PublisherNatural Resources Canada
Mediapaper; on-line; digital
RelatedThis publication is contained in Geological Survey of Canada; (1994). Cordillera and Pacific Margin, Geological Survey of Canada, Current Research no. 1994-A
File formatpdf
ProvinceBritish Columbia
AreaLangley City; Vancouver; Surrey
Lat/Long WENS-122.7500 -122.5000 49.1667 49.0000
Subjectshydrogeology; geophysics; sedimentology; aquifers; groundwater; water table; lithology; ground probing radar; geophysical interpretations; geophysical surveys; crossbedding; sedimentary structures; sediments; gravels; sands; clays; Brookswood aquifer; Quaternary
Illustrationssketch maps; radar profiles
Released1994 02 01
AbstractA ground penetrating radar (GPR) study has been conducted over the Brookswood aquifer in the Fraser Valley, southwestern British Columbia. Twelve kilometres of data were collected to assess the usefulness of GPR as a means of characterizing the stratigraphic architecture of the Brookswood aquifer. Existing well data in the area are compared with the GPR results. Over most of the study area, the signal penetration depth was 10 to 20 m. Strong reflections are visible from the water table and from lithological contacts identified from well data. Smaller scale reflections provide information about the spatial heterogeneity within stratigraphic units (e.g., large scale crossbedding). One three-dimensional survey (50 m x 25 m) was conducted and the data displayed using 3-D visualization techniques. The 3-D data set is a useful means of illustrating the geometry of sedimentary structures and potential anisotropy in aquifers.