Evans, D.J. and Hough, E. and Crofts, R.G. and Terrington, R.L. and Williams, G. (2005) The geology of the Preesall Saltfield area. Technical Report. British Geology Survey, Keyworth, Nottingham.
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Abstract
This report is the published product of an appraisal by the British Geological Survey (BGS) of the geology and structural setting of the Preesall Saltfield, near Fleetwood, Lancashire. It represents a synthesis of subsurface data held by, and made available to, BGS and including borehole and seismic reflection data, to produce a three-dimensional representation of the main Triassic salt beds (Preesall Halite) near Preesall. It does not claim to be the final and definitive model, and it should be noted that outwith the area of the former brinefield, borehole data are sparsely distributed, with the model relying on the available seismic reflection data. To date, these seismic data (including three Canatxx lines acquired in 1997) have been of limited use. However, reprocessing of British Gas and Canatxx seismic data during this study and the availability of an additional 1999 IELP line (also reprocessed during this study), has provided new data on the subsurface form of the Preesall Halite. Given the data distribution across the proposed area of development, this work can only represent a working model that is bound to be refined as more subsurface data are acquired. Disclaimer: this is an appraisal and factual account of the geological conditions and structure of the Preesall Halite as presently understood. The model is based up on data held by BGS and those data supplied to BGS by Canatxx and/or Mott MacDonald for the purpose of this study. These data are publicly accessible. It is NOT an assessment of engineering issues or the technology of Underground Gas Storage (UGS) and the suitability of the Preesall Halite hereabouts for gas storage. Canatxx is separately advised by other experts on these issues.
| Item Type: | Reports (Technical Report) |
|---|---|
| Subjects: | Methodology > Other-additional study Region > UK > Lancashire |
| Project: | EPOS-IP > PREESALL MINE: underground salt extraction cavities |