613 
NW. 
SW. 
KEY. 
- Spring mound 
.tellite imagery 
.y be identified 
d lineaments 
o SE-NW, 
ilting parallel 
adj anticline, 
dentified which 
erpendicular to 
the Djebel 
his faulting 
Chott el 
ection and 
p of aquifers 
nose of the 
t as a NERC 
e authors, 
hank Geoff 
nd to 
Meller for the 
Local formations 
Recent deposits 
Zarzis Formation 
Pontien ? 
Habra Formation (Paleocene) 
Main lithological units found in the Netazoua 
Clays and sands 
Aboid Formation 
Limestones 
Aleg Formation 
U. LpLi Upper Zebbag Formation 
r i, “i. k n (Lower Senonien) 
S upper Zebbag Formation 
(Lower Senonien) 
Upper Zebbag Formation 
(Turonien) 
I i i i j Lower and Middle Zebbag 
III! Formation (Cenomanien) 
□ 
Gafsa Formation (Albo-Aptien) 
E 
Gypsiferous marls 
Gypsiferous marls and limestones 
Gypsiferous marls 
Massive dolomitic limestone 
I Dolomitic limestones 
Gypsiferous marls 
Dolomitic limestones 
Dolomitic limestone, limestone, 
clays and marls 
Figure 7. Cross sections of the Chott el Fedjadj anticline (a) before and (b) after breaching (after Mamou, 
1976) 
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