440
I. Lerche· S. Cao . S. Mallory· K. Petersen . A. Lowrie
possible results, despite our misgivings on the northern salt mass conserving its
shape with time.
At each geological time-step the salt bodies are taken to move across the section preserving their shapes with time to within the constraints of thickness uncertainty. Thus the salt masses cross-cut sedimentary beds, and sedimentary
deposition continues across the section both prior to, during, and post-emplacement of salt at each location.
4.1.3
Mean Excess Pressure Results
As each salt sheet moves across the section there is a change in fluid excess pressure at each location. Shown on Fig. 10 are the values of mean excess fluid presa
Excess pressure [kg·em·:!]
Fig. 10 Mean excess pressure
0
C
B
A
variations with time directly
~ r r r
under the southerly salt mass
at locations A-D
1 =0.8 MYBP
b
0
C
B
A
i
t
r r
JI 2
1
1=0.5 MYBP
eo 40 20
I /1
C
0
C
B
A
t
i
I
1=0.2 MYBP
120 eo 40
I I /'
d
0
C
B
A
Hri-li
1=0.15 MYBP
I I I I
e
0
c
B
A
110 1~ ~ 1
1=0.1 MYBP
.~
leo
I
I I I I
f
0
C
B
A
t=OMYBP
r~ I / / /