Sequence stratigraphy, basin dynamics, and petroleum geology of the Miocene from eastern Tunisia
Journal Article
·
· AAPG Bulletin
OSTI ID:223582
- Campus Universitaire, Tunis (Tunisia)
- Universite Bordeaux, Talence (France); and others
On the eastern margin of Tunisia, Miocene limestones, marl, and siliciclastic deposits crop out poorly and are lacking in age-diagnostic faunal content. The biostratigraphic and lithostratigraphic subdivisions of these series are not clearly defined. A regional study of subsurface sequences of this margin (Cap Bon, Gulf of Hammamet, and Sahel) by means of sequence stratigraphy and subsurface structural analyses permits the identification of seven third-order sedimentary sequences of inferred Langhian to Messinian age, the boundaries of which are characterized by downlap and onlap/toplap relationships. These sequences include turbidites, sands, and sandstones deposited in connection with eustatic sea level changes and tectonic movements of east-west and south-north deep-seated faults due to the Alpine and Atlassic paroxysm. Stratal sequences are organized around Miocene syndepositional grabens, half-grabens, platforms, and folds occurring inside and outside of regional tectonic corridors. The geodynamic evolution of Miocene basins has led to the deposition of turbiditic black argillaceous source rocks, and sandstone and carbonate reservoirs that present new Miocene petroleum targets. The basin subsidence in response to the Alpine/Atlassic orogeny has permitted the maturation of Miocene source rocks, oil generation, and the formation of oil traps, stratigraphic pinch-outs, and structural enclosures on the flanks of folds and on the borders of grabens.
- OSTI ID:
- 223582
- Journal Information:
- AAPG Bulletin, Journal Name: AAPG Bulletin Journal Issue: 1 Vol. 80; ISSN 0149-1423; ISSN AABUD2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Petroleum geology of Tunisia
Stratigraphic and structural interpretation of Willapa basin
Lithofacies and sandbody shape of sandstones in the Paphos-Polis basin, western Cyprus
Conference
·
Tue May 01 00:00:00 EDT 1990
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:7033451
Stratigraphic and structural interpretation of Willapa basin
Conference
·
Fri Mar 31 23:00:00 EST 1989
· AAPG (Am. Assoc. Pet. Geol.) Bull.; (United States)
·
OSTI ID:6027278
Lithofacies and sandbody shape of sandstones in the Paphos-Polis basin, western Cyprus
Conference
·
Mon Aug 01 00:00:00 EDT 1988
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:5537131