The Ormen Lange turbidite systems: sedimentary architectures and sequence structure of sandy slope fans in a sediment-starved basin - From Depositional Systems to Sedimentary Successions on the Norwegian Continental Margin - page 634

(A)

Frøya High

Slørebotn
Sub-basin
Devregubben-Hvitmeis
Terrace

Ormen Lange
Sub-basin / Terrace

Carmen Sub-basin

(B)

Sandy fan reservoir architectures - dip profile

C1

C2

C3

C4

I.

C5

Backstepping resulting from slope onlap -
note time-equvialent forestepping motif in downfan areas

Knickpoint erosion on ramp segments
between slope steps or terraces

II.

(C)
(1)

Channelised settings

Proximal settings

(2)

Intermediate settings

(3)

Distal settings

(4)

Terminal settings

(5)

Fig. 14. (A) Examples of slope sandy turbidite fan types; I: ponded minibasin fill - the Slørebotn turbidite systems, II: at grade
channelised turbidite fan - the inclined intermediate Hvitmeis-Dovregubben terrace, III: slope terrace turbidite fan - the
Ormen Lange slope terrace and IV: lower slope isolate lobe complexes - the Carmen subbasin turbidite fills. (B) Examples of
conceptual gross turbidite architectures along a dip profile across the Ormen Lange slope terrace turbidite system; I: without
distal outlet knick point channel and II: with distal outlet knick point channel. (C) Conceptual sedimentary architectures of a
series of strike profiles across an Ormen Lange type sandy slope turbidite system without outlet channel. Location of the
profiles are indicated in dip profile in B-I.

and the Messinian Laga 1 system of central Italy
(Milli et al ., 2007; Marini et al ., 2011).
Along the Møre Margin, the upslope feeder sys-
tems on the low-gradient ramp settings between
the slope terraces and mini-basins most probably

consisted of braided tributary systems, which
were dominated by by-pass and lag deposition
prior to deposition of spill-caps during retreat of
the two fan systems. For the Ormen Lange fan
systems, the inner fan was probably dominated