Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (0): add | show Print this page

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; e-ISSN 1365-3121, more
Peer reviewed article  

Available in  Authors 

Keyword
    Marine/Coastal

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 the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors