Les richesses de la Côte d'Ivoire et du Golfe de Guinée.pdf


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Contents
Foreword.........................................................................................................................................................iii
Abstract............................................................................................................................................................1
Introduction.....................................................................................................................................................1
Geology of the Gulf of Guinea Province......................................................................................................1
Pre-Transform Stage.............................................................................................................................8
Syn-Transform Stage...........................................................................................................................19
Post-Transform Stage.........................................................................................................................19
Petroleum Occurrences in the Gulf of Guinea Province........................................................................22
Hydrocarbon Source Rocks...............................................................................................................22
Hydrocarbon Generation and Migration..........................................................................................24
Hydrocarbon Reservoirs, Traps, and Seals.....................................................................................24
Total Petroleum Systems of the Gulf of Guinea Province......................................................................25
Lower Paleozoic and Lower Cretaceous Total Petroleum Systems............................................26
Cretaceous Composite Total Petroleum System (718301).............................................................28
Assessment Units of the Gulf of Guinea Province..................................................................................29
Coastal Plain and Offshore Assessment Unit (71830101)..............................................................29
Summary........................................................................................................................................................29
Acknowledgments........................................................................................................................................31
References Cited..........................................................................................................................................31

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1. Location map of Gulf of Guinea Province, west-central Africa.............................................2
2. Location map of Cretaceous Composite Total Petroleum System and
Coastal Plain and Offshore Assessment Unit...........................................................................3
3. Map of the basins, exploration wells, and major hydrocarbon discoveries in
Gulf of Guinea Province................................................................................................................4
4. Generalized geologic map of west Africa.................................................................................5
5. Paleogeographic maps of the Cretaceous separation of Africa and
South America................................................................................................................................6
6. Maps of four stages of the Mesozoic breakup of Africa and South America
and the tectonic evolution of the Equatorial Atlantic..............................................................7
7. Generalized geologic map of Gulf of Guinea area, showing selected oil and
gas provinces.................................................................................................................................9
8. Sketch map showing major fracture zones, sediment thickness, and
oceanic-continental crust boundary........................................................................................10
9. Generalized stratigraphic column within the Gulf of Guinea Province..............................11
10. Generalized composite stratigraphic column of offshore and onshore parts
of the Saltpond and Tano Basins..............................................................................................12
11. Generalized stratigraphic column of Dzita-1 drill hole, Keta Basin, Ghana.......................13
12. Sketch diagram showing paleogeographic reconstruction of the
Silurian Period..............................................................................................................................14