| Description |
vi, 99 leaves : illustrations, maps ; 29 cm |
| Summary |
"Mineralized ground water occurs at some localities in southeastern St. Louis and northern Jefferson counties, Missouri. This water is usually undesirable and is detrimental to development of ground water resources. Water well records in the offices of the Missouri Geological Survey and Water Resources provided data for a study of structure, lithology and occurrence of ground water. Water well drillers and property owners were interviewed to obtain additional information concerning drilling problems and quality of water. Geologic cross-sections, subsurface contour maps and isochlorinity maps aided the study of lithology, structure and areal distribution of mineralized ground water. Relationship is suggested between occurrence of mineralized water and lithology and structure. Relatively impermeable lithologies which act as barriers to the movement of ground water, and structural depressions which act as traps, retard the flushing of mineralized water by fresh meteoric water. Localities where mineralized water occurs with respect to two ground water zones are shown on geologic cross-sections and subsurface contour maps of the principal water bearing formations, the Keokuk-Burlington and the Kimmswick"--Abstract, leaf iii. |
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