MAPPING OF POTENTIAL SHORELINE AREAS IN NORTHERN NORWAY

Since the famous Rissa quick clay slide the Norwegian government has put considerable effort into surveying and mapping the extensive quick clay deposits in the lower parts of Eastern and Central Norway. As this work is now almost complete, focus has been shifted towards the northern parts of Norway, a mountainous area with long fjords and steep geological formations. The shoreline soil consists of soft, sensitive quaternary marine clays often overlain by layered loose young sediments, very sensitive to disturbance and to fluctuations in ground water pressure, erosion and manmade changes. A series of shoreline slides in the past years draw attention to slide triggering mechanisms and hazard mapping. A systematic geological and geotechnical review of shoreline conditions is proposed. This is aimed at systematic zooming on possible risk zones and shall finally lead to maps of potential shoreline slide areas for use in regional planning and decision.

Language

  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 103-108

Subject/Index Terms

Filing Info

  • Accession Number: 00778727
  • Record Type: Publication
  • ISBN: 9058090477
  • Report/Paper Numbers: Volume 1
  • Files: TRIS
  • Created Date: Nov 23 1999 12:00AM