Some applications of borehole logging to quaternary research: A study in Southern Saskatchewan

Generally the geology of the Breton area of Alberta consists of a 5‐to 125‐ft (1.5‐ to 38.1‐m) veneer of glacial till overlying sandstone and sandy shale units of the Paskapoo Formation. These sandstone units are locally important aquifers. Glacial drift in the Hastings Lake area varies in thickness from 100 to 200 ft (30.5 to 61.0 m) and overlies the Horseshoe Canyon Formation, which consists of bentonitic shale, siltstone and coal units with minor sandstone units. Ground‐water yields from drift and bedrock in this area are generally less than 30 gpm (113.6 1/m). Resistivity soundings were completed at 68 and 65 stations in the Breton and Hastings Lake areas, respectively. Profile maps from the Breton area are characterized by broad areas with apparent resistivity values greater than 100 ohm‐ft (3048 ohm‐cm). Qualitative evaluation of the resistivity soundings and existing borehole data indicated that the high resistivity values resulted from a thick resistive sandstone aquifer less than 25 ft (7.6 m) from ground surface. A reasonably well‐defined resistivity pattern was evident on the profile maps of the Hastings Lake area with the highest resistivity values coming from stations located in the hummocky moraine south of the lake. Sounding curves and borehole data indicate that an increase in the sand content of the drift is responsible for these values. However, local variability in the drift lithology produces anomalies in the resistivity patterns. In addition to providing useful information on the geology of an area, surface resistivity methods provide a rapid and relatively inexpensive tool to aid in planning more detailed ground‐water studies because of their ability to detect inhomogeneities in the subsurface environment.

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Some applications of borehole logging to quaternary research: A study in Southern Saskatchewan

Cited by 4 publications

References 13 publications

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Hydrogeological characterization of saline water aquifer deploying multiple well logs at Khulna, a coastal region of Bangladesh

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