Fig. 2.5 a-c. Evaporite deposition in the early Atlantic. a Geographic distribution of Mesozoic evaporites.
[K. O. Emery, 1977, AAPG
Continuing Education
Course Notes Ser 5: B-1.]
b Salt diapir structures (S)
as seen on air gun profile of
Meteor Cruise 39, off Morocco (near 30° N). Water
depth at triangle is approximately 1800 m. [E. Seibold
et aI., 1976.] c Relationship
of salt diapirs to margin
structure off Angola (SW
Africa). The Aptian salt is
underlain by nonmarine
clastic deposits which fill
graben-like depression
within pre-Cambrian basement [R. H. Beck and
P. Lehner, 1974, AAPG
Bull. 58. 376.]
• 5fA~RS
• 5~51
b
c
Atlantic-Type (= Passive) Margins
49
- ..... . .. . .
sec
- 2
Cretaceous
OJ Pre · Combrlon
D Oceanic Basolts
.
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