IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

A refreshing 3D view of an ancient sediment collapse and slope failure
Huvenne, V.A.I.; Croker, P.F.; Henriet, J.-P. (2002). A refreshing 3D view of an ancient sediment collapse and slope failure. Terra nova (Print) 14(1): 33-40. dx.doi.org/10.1046/j.1365-3121.2002.00386.x
In: Terra Nova. Blackwell: Oxford. ISSN 0954-4879, more
Peer reviewed article  

Available in Authors 
    VLIZ: Open Repository 214834 [ OMA ]

Keyword
    Marine

Authors  Top 
  • Huvenne, V.A.I., more
  • Croker, P.F.
  • Henriet, J.-P., more

Abstract
    The combined analysis of high-resolution 2D seismics and an industrial 3D seismic data volume from the western Porcupine Basin, offshore SW Ireland, revealed an unusual picture of a buried sediment collapse and slope failure. A proportionally thin (<=85m) but vast (>=750 km2) slab of consolidated sediments started to slide downslope, in the meantime breaking into hundreds of vertically undisturbed blocks, up to 500m in diameter. The most probably overpressured underlying horizon seems to have liquefied and acted as a slide plane until the excess pore pressure had dissipated. Then – still very early in the slide development – the process stopped, freezing the failure at its initial stage.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors