Geology Reference
In-Depth Information
60
Sea level: constant
40
Shoals,
mainly
grainstone
0-5 m depth
20
Wackestone, 5-40 m water depth
Argillaceous carbonate mudstone, >40 m depth
0
60
40
20
Sea-level: sine wave, period 100 kyr, amplitude 10 m
0
80
Sea-level: (1) sine wave, period 100 kyr, amplitude 10 m
(2) linear fall of 30 m (30 μ m yr 1 )
Terrestrial erosion: 100 μ m yr 1
60
40
20
Fig. 15. The C3D simulations of
upper Shu'aiba depositional anatomy
indicate that the scenario of an ero-
sionally truncated FST best matches
observations in both Safah and Bu
Hasa fi elds.
0
0
2
4
6
8
10
Distance in modelling space (km)
question to be pursued in this section is: how
do the results from modelling compare with
geological reality? In other words: which part
of the parameter space is geologically probable
and supported by observations? The situation
is evaluated separately for each of the principal
controls.
Rates of sea-level fall
It is well established that the 'power' (or variance)
of sea-level fl uctuations changes with the fre-
quency of the wave patterns. This implies that
rates and amplitudes of sea-level change are not
independent of the length of the time interval
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