3D forward modelling of the impact of sediment transport and base level cycles on continental margins and incised valleys - From Depositional Systems to Sedimentary Successions on the Norwegian Continental Margin - page 462

T = 162 ka - Maximum sea-level rise of the fast cycle

Infill of the incised valley
Backstepping and onlap onto
the subaerial erosion surface
Aggradation of sedimentary units

100

300

1000

200

162 ka
144 ka

154 ka

T = 154 ka - Maximum sea-level fall of the fast cycle

Deep incised valley and subaerial exposure surface
Progradation of a delta
Downlapping foresets and truncation of toplaps

100

100

0 -100 -200

Sea-level (m)

1000

Sand [%]

T = 144 ka - End of the steady-phase between of the slow and fast cycles

1

Toplap on a fluvial erosion surface
Backstepping then aggradation of sedimentary units

0.9
0.8
0.7
0.6
0.51
0.49
0.4
0.3
0.2
0.1
0

100

1000

Fig. 5. Detailed internal architecture of sedimentary units deposited during the fast sea-level cycle (T = 144 ka to 162 ka).