Associations de foraminifères benthiques dans les séquences de dépôt du Trias moyen?-supérieur de l'Atlas Tunisien central et méridional

Kamoun, Fékri; Peybernès, Bernard; Martini, Rossana; Zaninetti, Louisette; Vila, Jean-Marie; Trigui, Abderrahmen; Rigane, Adel

doi:10.1016/s0016-6995(98)80104-6

Cited by 20 publications

(13 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…assemblage (black limestones, central Tunisia) (Figure 10). Similarly, Castany and Degalier (1956) attributed the Triassic series outcropping in Koudiat El Alfa (KEA, see Figure 2 for location) to the 'Keuper'; then Kamoun et al (1998), by means of benthic foraminiferal assemblages, assigned a Carnian age to the section. The neighbouring well (KEA-5) has been subject to a palynological investigation by Khessibi and Pacaud (1968) Figure 10.…”

Section: Biostratigraphy and Sequence Stratigraphymentioning

confidence: 97%

“…The low TOC values characterizing some early Carnian sections/wells (Figure 2) could be explained by the absence of the basal part of the early Carnian interval (typically organic-rich in the Oued El Bhima and Oued El Forka of the Rhéouis-type section) where the silty level (Tr2 of Burollet 1956) that directly underlies the organicrich level is reportedly absent in several sections throughout the North-South Axis region and exceptionally within the western and eastern flanks of Jebel Rhéouis (Burollet and Dumestre 1952;Salaj and Stranik 1970;Ben Ferjani et al 1990;Chandoul et al 1993;Soussi et al 1996;Kamoun et al 1998) and in northcentral as well as northeastern Tunisia (Bonnefous 1967;Crampon 1971;Salaj and Bajanik 1972;Biely and Rakus 1972;Burollet 1973;Boufares and Mekki 1984;Touati et al 1995;Smaoui 1996;Salaj and Mzoughi 1997). This explains to some extent the direct deposition of the organic-rich black stromatolitic dolomites interbedded with black shales and few gypsum levels on the lower gypsum unit.…”

Section: International Geology Review 1893mentioning

confidence: 99%

“…Biostratigraphic calibration of the organic-rich strata on the basis of palynology and benthic foraminifera. BF: benthic foraminifera (zones of Peybernes et al 1993;Kamoun et al 1998Kamoun et al , 2001; palynoflora (zones of Mehdi et al 2009;Buratti et al 2012).…”

Section: Biostratigraphy and Sequence Stratigraphymentioning

confidence: 99%

“…This is confirmed by seismic studies over the same basin by Bedir (1995), who defined laminated and well-stratified Carnian carbonates termed T3 ( Figure 5). Generally speaking, the early Carnian black shales contain dwarfed and impoverished benthonic fauna as well as pelycepods, lamellibrachs, gastropods, brachiopods, and ammonites (Burollet 1956;Calzada et al 1994;Soussi et al 1996;Kamoun et al, 1998). However, the dysaerobic conditions in the Gulf of Gabes (DE-1, DJM-1 wells, e.g.…”

Section: Biostratigraphy and Sequence Stratigraphymentioning

confidence: 99%

“…A similar sequence stratigraphic interpretation was presented by Soussi et al (1996). Particularly in the Rhs section, the sequence boundary (SB) is confused with the transgressive surface (TS), probably due to an underlying discontinuity (Kamoun et al 1998).…”

Section: Biostratigraphy and Sequence Stratigraphymentioning

confidence: 99%

See 4 more Smart Citations

Early Carnian anoxic event as recorded in the southern Tethyan margin, Tunisia: an overview

Soua

2014

International Geology Review

View full text Add to dashboard Cite

Considerable attention has been given to the Carnian (Late Triassic) Pluvial and Reingraben events associated with organicrich shale accumulation in the Germanic basin, Alps, southern Appenines as well as in northwestern Tethyan margins. Less interest has been shown to the southern Tethyan portion represented by the northern margin of Africa, including Tunisia. Tunisian basins represented by the Tellian domain, Tunisian trough, the 'Dorsale', and the North-South Axis (NOSA) belong to the southern Tethyan margin, where northern and central areas record the early Carnian anoxic event within an extensive carbonate platform. This short-lived (~2 million year) period of anoxia ranges within the Aonoides to Austriacum ammonite zones, and corresponds in Tunisia generally to intermediate to shallow water environments marked by organicrich black limestone, dolomite, and shale. Interestingly, toward the south, the dysaerobic conditions in the Jeffara-southern Dahar basin appear to have prevailed locally also in the early Carnian. Here we review evidence of early Carnian anoxia in Tunisia based on the analysis of more than 17 Triassic sections and wireline logs from several petroleum exploration wells penetrating the black dolomites, limestones, and shales. In addition, biostratigraphic and complete geochemical reviews have been undertaken from published papers and unpublished internal reports to better assess this important and promising hydrocarbon source interval.

show abstract

Section: Biostratigraphy and Sequence Stratigraphymentioning

confidence: 97%

Section: International Geology Review 1893mentioning

confidence: 99%

Section: Biostratigraphy and Sequence Stratigraphymentioning

confidence: 99%

Section: Biostratigraphy and Sequence Stratigraphymentioning

confidence: 99%

Section: Biostratigraphy and Sequence Stratigraphymentioning

confidence: 99%

See 3 more Smart Citations

Early Carnian anoxic event as recorded in the southern Tethyan margin, Tunisia: an overview

Soua

2014

International Geology Review

View full text Add to dashboard Cite

show abstract

Depositional environment and biofacies characterisation of the Triassic (Carnian to Rhaetian) carbonate succession of Punta Bassano (Marettimo Island, Sicily)

Martini

Cirilli

Saurer

et al. 2007

Facies

Self Cite

View full text Add to dashboard Cite

The aims of this study are to reconstruct the geological setting of the Punta Bassano series (Marettimo Island, Egadi Archipelago, western Sicily) and its palaeogeographic evolution. The reference section for the Upper Triassic of Marettimo shows an alternation of marl and limestone beds together with brecciated levels. The limestones are both homogeneous mudstones with evaporite pseudomorphs and laminated with fenestrae. Foraminiferal, palynomorph, and ostracod associations constrain the Punta Bassano sequence to the Carnian-Rhaetian interval. The Punta Bassano succession represents a shallow inner ramp, ranging from open-marine environment with good water circulation to lagoonal and peritidal protected environments. Freshwater input from rivers or groundwater on the carbonate ramp is indicated by the ostracod microfauna. The comparison of facies and microfauna with those from other sequences of the Mediterranean Upper Triassic (Pyrenees, Corsica, Sardinia, and Tunisia) allows us to conWne the Punta Bassano sedimentation to the northern margin of the Tethys, between the Corsican and the Pyrenean depositional setting. These new results indicate that Marettimo Island, which is considered a single structural element being formed by four tectonic units, is a piece of the southern margin of the European Plate, displaced over a longer distance to become part of the other Egadi Islands, when the Corso-Sarde block made its rotation and successive collision with the North African Margin

show abstract

Polyphasic evolution of the Jeffara basin in southern Tunisia, influence of halokinesis on the passive margin structuration in the Mesozoic and the Cenozoic

et al. 2018

View full text Add to dashboard Cite

Associations de foraminifères benthiques dans les séquences de dépôt du Trias moyen?-supérieur de l'Atlas Tunisien central et méridional

Cited by 20 publications

References 5 publications

Early Carnian anoxic event as recorded in the southern Tethyan margin, Tunisia: an overview

Early Carnian anoxic event as recorded in the southern Tethyan margin, Tunisia: an overview

Depositional environment and biofacies characterisation of the Triassic (Carnian to Rhaetian) carbonate succession of Punta Bassano (Marettimo Island, Sicily)

Polyphasic evolution of the Jeffara basin in southern Tunisia, influence of halokinesis on the passive margin structuration in the Mesozoic and the Cenozoic

Contact Info

Product

Resources

About