The initiation of sliding on the mid Norway margin in the Møre Basin

The stratigraphic and geographic distribution of giant craters and remobilised sediment mounds on the mid Norway margin, and their relation to long term fluid flow

“…The onset of slope instability in the Møre Basin was after 3.6 Ma (Lawrence and Cartwright, 2009). The onset of extensive northern hemisphere glaciation, often cited as being between 2.6 and 2.7 Ma on the basis of ice-rafted debris (Jansen et al, 2000;Hjelstuen et al, 2005), ensured that large volumes of sediment continued to be shed into the Møre Basin from the Norwegian Margin to the east and from the Norwegian Channel to the south .…”

“…The first slide events to occur on the mid Norway margin in the Plio-Pleistocene were described by Lawrence and Cartwright (2009). The first slide to occur is 100 km in length and 380 km 3 in volume, flowed from east to west, was translated a maximum distance 2-3 km, and is named Slide Y.…”

“…The first slide to occur is 100 km in length and 380 km 3 in volume, flowed from east to west, was translated a maximum distance 2-3 km, and is named Slide Y. Slide Y is linked with the cessation of polygonal faulting and with the arrest of an Opal A/ Opal CT boundary in the Møre Basin (Lawrence and Cartwright, 2009). The second slide to occur on the mid Norway Margin, known as Slide W, is one of the largest by volume to have occurred on this margin, being 180 km long and 4320 km 3 in volume.…”

Small-Scale Insights into Seismic-Scale Slumps: A Comparison of Slump Features from the Waitemata Basin, New Zealand, and the Møre Basin, Off-Shore Norway

“…The Plio-Pleistocene Naust Formation, within which Slump W occurs, comprises of contourites, hemipelagites and glacigenic sediments (Evans et al 2002). Slump W is believed to have developed between 1.8 and 4 Ma and is confined against the volcanic palaeo-high of the Faroe-Shetland Escarpment (Lawrence and Cartwright 2009). Lawrence and Cartwright (2009) concluded that limited translation of the slump mass has occurred (estimated at 2-3 km), with a transport direction from east to west.…”

“…2a). This slump, referred to as 'Slump W' (after Lawrence and Cartwright 2009) has been chosen because it is well imaged by high quality seismic data, and occurs on a scale some 100 times greater than the field outcrop example.…”