Hydrochemical aspects of the Triassic Sandstone aquifer of the Birmingham area are discussed to show the effect of aquifer structure upon the quality and nature of ground-waters. The presence of faulting and its effects upon ground-water flow and quality are demonstrated by reference to major ion chemistry. Carbon isotope data show that old groundwater exists in an unconfined outcrop area, its distribution being controlled by a structural low in the base of the Triassic. Radiocarbon ages of 20 samples show that low levels of chloride (<20 mg/l) are indicative of old ground-waters.
- © 1983 The Geological Society