446
Oeplh [n)
o~~~~~~~
lr
f-II
I
/
7
f
J
0
0
~ ~ ~ ~ ~ ~ ~
N
0
IwlLlldao
Dep\tl!fI]
0
~ ~ ~ ~ 6l ~
0
0
~
r~
I
V
I
II
J
V
V
J
c o
~ ~ ~ ~ ~ ~ ~
.0
(wI LIIdao
Depa'llft)
c ~ ~ ~ ~ ~ ... ~ ~
+--fIr
/
I
7
/
/
/
o o
I. Lerche· S. Cao . S. Mallory· K. Petersen· A. Lowrie
Fig. 12a-c Excess pressure (in kg/cm- 2 = 1.03 atm)
variations with present -day depth at location A for an
intrusive salt sill inserted at a speed of 10 cm a-I and
present-day salt top at 300 m sub-sea bed. a Salt
thickness of 2000 m. b Salt thickness of 2200 m. c As
for a but when the underlying formation lithology is
changed to 100% sand from the 50% sand/50% shale
lithology used in a and b