Slimline Logging Techniques, which have had widespread usage in the field of exploration geology, have a number of important applications in engineering ground investigations. This paper describes the successful use of such techniques in Triassic sandstones as part of a ground investigation for a possible nuclear power station development at Sellafield, Cumbria. The aim of the investigation was to provide a clear understanding of the geological structure of the site allowing provision of data for seismic hazard assessment and to provide geotechnical parameters for future structural design. During the planning stages of the investigation the importance of gaining cross-site geological correlation was recognised and Slimline Techniques were chosen as the most appropriate means of providing this given the relatively homogeneous and monotonous nature of the sandstones. The paper describes the investigation and the various Slimline Techniques employed and discusses the relative usefulness of each with respect to the requirements of the investigation. The paper demonstrates a successful correlation between the geophysical signatures obtained from these techniques and the detailed stratigraphy and allowed correlation of sandstone units across the site. The correlation proved to be a key element in the understanding of the geological structure and also allowed confirmation of the recently proposed geological division of the St Bees sandstone into two units, the upper part of which is now known as the Calder Sandstone. (A) For the covering abstract see IRRD 883023.


  • English

Media Info

  • Features: References;
  • Pagination: p. 750-61

Subject/Index Terms

Filing Info

  • Accession Number: 00729298
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • ISBN: 0-7277-2513-0
  • Files: ITRD
  • Created Date: Dec 12 1996 12:00AM