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Zebbag Formation

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Image
—Isopach map of Turonian part of Zebbag Formation: log top of Zebbag (Figure 15) to top of Annaba in and around Kerkennah West permit (elsewhere, Turonian carbonate or equivalent). Contour interval = 50 m. Fault symbol indicates approximate trend of Jeffara flexure.
Published: 01 September 1988
Figure 13 —Isopach map of Turonian part of Zebbag Formation: log top of Zebbag ( Figure 15 ) to top of Annaba in and around Kerkennah West permit (elsewhere, Turonian carbonate or equivalent). Contour interval = 50 m. Fault symbol indicates approximate trend of Jeffara flexure.
Journal Article
Journal: AAPG Bulletin
Published: 01 September 1988
AAPG Bulletin (1988) 72 (9): 1033–1058.
...Figure 13 —Isopach map of Turonian part of Zebbag Formation: log top of Zebbag ( Figure 15 ) to top of Annaba in and around Kerkennah West permit (elsewhere, Turonian carbonate or equivalent). Contour interval = 50 m. Fault symbol indicates approximate trend of Jeffara flexure. ...
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First thumbnail for: Petroleum Geology of East-Central Tunisia
Second thumbnail for: Petroleum Geology of East-Central Tunisia
Third thumbnail for: Petroleum Geology of East-Central Tunisia
Journal Article
Published: 01 March 2010
Journal of Paleontology (2010) 84 (2): 321–331.
... hundred well-preserved, fairly complete specimens that are free of sediment matrix, found in a single bed of an ammonite-bearing Albian succession (‘ Knemiceras beds’, Zebbag Formation) in central Tunisia. This study provides the most nearly complete knowledge of any Eoradiolites species to date...
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First thumbnail for: ALBIAN EORADIOLITES (BIVALVIA: RADIOLITIDAE) FROM ...
Second thumbnail for: ALBIAN EORADIOLITES (BIVALVIA: RADIOLITIDAE) FROM ...
Third thumbnail for: ALBIAN EORADIOLITES (BIVALVIA: RADIOLITIDAE) FROM ...
Journal Article
Journal: PALAIOS
Published: 01 July 2012
PALAIOS (2012) 27 (7): 455–464.
...MICHELA CONTESSI; FEDERICO FANTI Abstract The discovery of fossil bird tracks from the Cenomanian Kerker Member (Zebbag Formation) in southern Tunisia represents the oldest report of fossil birds from the Cretaceous of continental Africa. Three small bird tracks were discovered in a track-bearing...
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First thumbnail for: FIRST RECORD OF BIRD TRACKS IN THE LATE CRETACEOUS...
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Image
Figure 2. Eoradiolites plicatus (Conrad, 1852) from the Albian of Tunisia (“Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), stereo-pairs, scale bar  =  10 mm; 1, PUAB 74791, right valve, ventral view; 2–3, PUAB 74779, both valves, upper and ventral view respectively; 4–5, PUAB 74809, both valves, upper and ventral view respectively.
Published: 01 March 2010
Figure 2. Eoradiolites plicatus ( Conrad, 1852 ) from the Albian of Tunisia (“ Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), stereo-pairs, scale bar  =  10 mm; 1 , PUAB 74791, right valve, ventral view; 2–3 , PUAB 74779, both valves, upper and ventral view respectively; 4–5
Image
Figure 3. Scatter diagram showing range of variation in height versus width in specimens of Eoradiolites plicatus (Conrad, 1852) from the Albian of Tunisia (“Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa). Specimens with broken apical end are represented by open dots; total height may be about 10–20 mm more than indicated, but width values remain the same. Specimens in Fig. 2 are indicated by their identification numbers.
Published: 01 March 2010
Figure 3. Scatter diagram showing range of variation in height versus width in specimens of Eoradiolites plicatus ( Conrad, 1852 ) from the Albian of Tunisia (“ Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa). Specimens with broken apical end are represented by open dots; total height
Image
Figure 4. Eoradiolites plicatus (Conrad, 1852) from the Albian of Tunisia (“Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), transverse sections of right valves close to the commissure, scale bar  =  10 mm; 1, PUAB 74836; 2, PUAB 74797; 3, PUAB 74823; 4, PUAB 74811; 5, PUAB 74817; 6, PUAB 74778; 7, PUAB 74808; 8, PUAB 74848; 9, PUAB 74805; 10, PUAB 74850.
Published: 01 March 2010
Figure 4. Eoradiolites plicatus ( Conrad, 1852 ) from the Albian of Tunisia (“ Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), transverse sections of right valves close to the commissure, scale bar  =  10 mm; 1 , PUAB 74836; 2 , PUAB 74797; 3 , PUAB 74823; 4 , PUAB 74811; 5
Image
Figure 6. Eoradiolites plicatus (Conrad, 1852) from the Albian of Tunisia (“Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), stereo-pairs, scale bar  =  10 mm; 1, PUAB 74799, inner-ventral view of the left valve showing up-right growth of the outer shell layer, the “outer” surface corresponds to the commissural surface, outer concavity filled with sediment, inner shell layer not preserved; 2, PUAB 74785, ventral-posterior view of the right valve showing the left valve where broken at the upper part.
Published: 01 March 2010
Figure 6. Eoradiolites plicatus ( Conrad, 1852 ) from the Albian of Tunisia (“ Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), stereo-pairs, scale bar  =  10 mm; 1 , PUAB 74799, inner-ventral view of the left valve showing up-right growth of the outer shell layer, the “outer” surface
Image
Figure 5. Eoradiolites plicatus (Conrad, 1852) from the Albian of Tunisia (“Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), scale bar  =  10 mm; 1, PUAB 74823, transverse section of the right valve close to the commissure, showing the ligament crest and teeth sockets as well as the myocardinal apparatus of the left valve; 2, PUAB 74808, transverse section of the right valve close to the commissure, showing the three folds of the growth laminae of the outer shell layer; 3, PUAB 74845, oblique section of the right valve nearly parallel to the growth laminae, showing the radial ridges and the inner marginal groove; 4, PUAB 74845, radial section of the right valve.
Published: 01 March 2010
Figure 5. Eoradiolites plicatus ( Conrad, 1852 ) from the Albian of Tunisia (“ Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), scale bar  =  10 mm; 1 , PUAB 74823, transverse section of the right valve close to the commissure, showing the ligament crest and teeth sockets as well
Journal Article
Published: 25 February 2021
Journal of the Geological Society (2021) 178 (3): jgs2019-195.
...Mohamed Ben Chelbi Abstract The Zebbag and Fahdene formations outcrop onshore Tunisia and provide an excellent opportunity to test models of the tectonosedimentary evolution of this region during the Albian–Cenomanian. A NW–SE compressive stress regime resulted in shortening of the Tunisian margin...
FIGURES
First thumbnail for: Geodynamic evolution of the Tunisian margin during...
Second thumbnail for: Geodynamic evolution of the Tunisian margin during...
Third thumbnail for: Geodynamic evolution of the Tunisian margin during...
Image
Figure 7. Eoradiolites plicatus (Conrad, 1852) from the Albian of Tunisia (“Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), scale bar  =  10 mm; 1–3, PUAB 74840, serial transverse sections (polished sections) of a young specimen, preserved inside the concavity of the left valve of an adult, cutting the successive layers of the left valve outer shell layer; sediment, filling outer concavity of adult specimen's left valve and surrounding juvenile, cleaned out from photographs but shell margin of adult's left valve kept and still visible at upper left in 1 and 2 and at lower left in 2 and 3; 4, PUAB 74831, longitudinal section of both valves, left valve is cut nearly parallel to the growth lamellae; 5, PUAB 74854, longitudinal section of both valves, more centered than previous one, showing the nearly vertical commissural lip and more left valve's growth lamellae cut at a higher angle.
Published: 01 March 2010
Figure 7. Eoradiolites plicatus ( Conrad, 1852 ) from the Albian of Tunisia (“ Knemiceras beds,” Zebbag Formation, Jabal Naïmia, Gafsa), scale bar  =  10 mm; 1–3 , PUAB 74840, serial transverse sections (polished sections) of a young specimen, preserved inside the concavity of the left valve
Image
—Sub-Zebbag reference section from a well in Kerkennah West permit. Equivalents to Barremian-Aptian Meloussi to Orbata Formations found elsewhere in Tunisia (Fournie, 1978) are present in permit area, but these units themselves are not recognized.
Published: 01 September 1988
Figure 17 —Sub-Zebbag reference section from a well in Kerkennah West permit. Equivalents to Barremian-Aptian Meloussi to Orbata Formations found elsewhere in Tunisia ( Fournie, 1978 ) are present in permit area, but these units themselves are not recognized.
Journal Article
Journal: AAPG Bulletin
Published: 01 May 2001
AAPG Bulletin (2001) 85 (5): 885–907.
... Youssef, 1999 ; Abdallah, 2000 ). They are assembled in the Albian-Cenomanian Zebbag Formation, Cenomanian-Turonian Guettar member, Turonian-Campanian Aleg Formation, and Campanian-Maastrichtian Abiod Formation ( Figure 2 ) ( Burollet, 1956 ; Négra, 1994 ). These series show important variations...
FIGURES
First thumbnail for: Subsurface Mesozoic Basins in the Central Atlas of...
Second thumbnail for: Subsurface Mesozoic Basins in the Central Atlas of...
Third thumbnail for: Subsurface Mesozoic Basins in the Central Atlas of...
Journal Article
Journal: AAPG Bulletin
Published: 01 March 1975
AAPG Bulletin (1975) 59 (3): 413–450.
... accumulations and shows are in a shoreline facies associated with the series of northeast-trending anticlines of a foothills belt which is less disturbed than the main Atlas ranges farther north. Cenomanian-Turonian —This interval includes the Ain Tobi, Jefren, and Garian Formations of Libya and the Zebbag...
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First thumbnail for: Geology of Tunisia and Adjacent Parts of Algeria a...
Second thumbnail for: Geology of Tunisia and Adjacent Parts of Algeria a...
Third thumbnail for: Geology of Tunisia and Adjacent Parts of Algeria a...
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1975
AAPG Bulletin (1975) 59 (10): 1871–1903.
...) in the previous year (–8.7%). BRPM completed a well in the Beni-Mellal area (central Morocco) with good gas shows in the Devonian and Silurian shales, and with some fluorescence in these formations. A second well was spudded in this area and was drilling at year-end. In the Rif foothills area. Aquitaine-Maroc...
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First thumbnail for: Petroleum Developments in North Africa in 1974
Second thumbnail for: Petroleum Developments in North Africa in 1974
Third thumbnail for: Petroleum Developments in North Africa in 1974
Journal Article
Published: 01 February 2021
Italian Journal of Geosciences (2021) 140 (1): 141–154.
... City, South Korea Jinju, Sindong Group of Gyeongsang Supergroup Lower Cretaceous, Aptian Kim et alii , 2017 Asia China Shaanxi   Lower Cretaceous Xing et alii , 2018 Africa Tunisia Jebel Boulouha West of Tataouine Kerker Member of the Zebbag Formation Upper Cretaceous...
FIGURES
First thumbnail for: Vertebrate Trace Fossils: the Congo’s Brasilichniu...
Second thumbnail for: Vertebrate Trace Fossils: the Congo’s Brasilichniu...
Third thumbnail for: Vertebrate Trace Fossils: the Congo’s Brasilichniu...
Journal Article
Journal: AAPG Bulletin
Published: 11 December 1999
AAPG Bulletin (1999) 83 (12): 1–40.
... the Cretaceous section. Probably the most important are the shallow shelf, skeletal limestone and dolomite facies of the Cenomanian-Turonian Lower and Upper Zebbag formations. In the Libyan nomenclature, this sequence equates to the Alagah and Makhbaz formations and the Lidam-Argub sequence. The net Upper...
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First thumbnail for: LIBYA: PETROLEUM POTENTIAL OF THE UNDER-EXPLORED B...
Second thumbnail for: LIBYA: PETROLEUM POTENTIAL OF THE UNDER-EXPLORED B...
Third thumbnail for: LIBYA: PETROLEUM POTENTIAL OF THE UNDER-EXPLORED B...
Journal Article
Journal: AAPG Bulletin
Published: 01 September 2015
AAPG Bulletin (2015) 99 (9): 1649–1669.
... ). It includes the continental Asfer and Sidi Aïch Formations at the base, successively overlain by the marine Orbata, Zebbag, and Aleg Formations ( Figure 2 ). The main hydrocarbon source rock for Paleozoic and Triassic reservoirs in southern Tunisia is the Silurian Tannezuft Formation ( Ghenima, 1995...
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First thumbnail for: A new borehole temperature adjustment in the Jeffa...
Second thumbnail for: A new borehole temperature adjustment in the Jeffa...
Third thumbnail for: A new borehole temperature adjustment in the Jeffa...
Journal Article
Published: 01 May 2012
Bulletin de la Société Géologique de France (2012) 183 (3): 217–231.
... ]. Southward along the NW-SE orientated Kasserine fault system the stratigraphic equivalent of hemipelagic and pelagic successions is represented by rudist-gravel facies of the Zebbag Formation [ Philip et al. , 1989 ]. Several Albian buildups composed of hexacorallian limestones were reported previously...
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First thumbnail for: Thrombolitic and coral buildups in the Upper Albia...
Second thumbnail for: Thrombolitic and coral buildups in the Upper Albia...
Third thumbnail for: Thrombolitic and coral buildups in the Upper Albia...
Journal Article
Published: 12 March 2021
Journal of Sedimentary Research (2021) 91 (1): 146–166.
...., and Redfern, J., 2017 , Examining the interplay of climate and low amplitude sea-level change on the distribution and volume of massive dolomitization: Zebbag Formation, Cretaceous, Southern Tunisia : Depositional Record , v. 3 , p. 38...
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First thumbnail for: Multi-episodic recrystallization and isotopic rese...
Second thumbnail for: Multi-episodic recrystallization and isotopic rese...
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