A proposed conceptual model for the genesis of the Derbyshire thermal springs

  1. Lookup NU author(s)
  2. Professor Rick Brassington
Author(s)Brassington FC
Publication type Article
JournalQuarterly Journal of Engineering Geology and Hydrogeology
Year2007
Volume40
Issue1
Pages35-46
ISSN (print)1470-9236
ISSN (electronic)2041-4803
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
Ten thermal springs occur in seven centres in Derbyshire, England with temperatures up to 27.5oC compared with an ambient groundwater temperature of about 9oC. The springs discharge from a karstic Dinantian limestone aquifer along the boundary with the overlying Namurian strata around the edge of a regional dome structure. The water is heated by deep circulation to as much as 1km with the hottest spring being at Buxton spring where the water is 5,000 years old. A comparison of flow data from the Buxton spring with groundwater hydrographs shows seasonality in the thermal flows suggesting that the loading effects produced by recharge are transmitted through this deep aquifer system. From a review of the geological history and the hydrogeology and the use of measurements on the Buxton spring it is suggested that the thermal flow system may have its roots in ancient convection cells possibly established in the deeply buried aquifer in late Carboniferous-Lower Permian times. Subareal erosion during the Pliocene removed the impermeable cap rocks and allowed both the thermally heated water to form warm springs and this deep groundwater circulation to be recharged by meteoric waters. The location of the individual springs is likely to date from the down-cutting during the Upper Pleistocene that formed the modern river valley topography.
PublisherGeological Society Publishing House
URLhttp://dx.doi.org/10.1144/1470-9236/05-046
DOI10.1144/1470-9236/05-046
Actions    Link to this publication
Share