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Middle Triassic (Anisian-Ladinian) Tejra red beds and Late Triassic (Carnian) carbonate sedimentary records of southern Tunisia, Saharan Platform: Biostratigraphy, sedimentology and implication on regional stratigraphic correlations

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cris.lastimport.scopus2024-02-12T19:35:56Z
dc.abstract.enThe “red beds” of the Triassic succession outcropping at Tejra-Medenine (southern Tunisia, Saharan Platform) have yielded rich fossil assemblages of both freshwater and brackish-marine invertebrates and vertebrates. The new discovered fauna indicates an Anisian-Lower Ladinian age for the Tejra section. Its lowermost part is considered as equivalent of Ouled Chebbi Formation, while the medium and upper parts are considered as equivalent of the Kirchaou Formation. Both sedimentological characteristics and fossil assemblages indicate the increasing marine influences within the middle part of the section and the migration of brackish and freshwater fauna into the lacustrine/playa environment at the top. The marine fauna-rich interval of the Tejra section correlates well with the well-known Myophoria-rich carbonate stratigraphic marker confirming the Middle Triassic (Ladinian) major transgression well recorded eastward in the Tunisian Jeffara basin and in Libya. The use of this Ladinian stratigraphic event in addition to the Carnian carbonate transgressive events of the Jeffara escarpment outcrops was of great help for regional lithostratigraphic correlations between the Triassic outcropping series and those currently buried in Ghadames and Berkine basins. The age of the sandstones of “Trias Argilo-Gréseux Inférieur” (TAGI) which forms the main oil and gas reservoir in the Saharan domain is attributed to the Anisian-Carnian and considered as coeval of Ouled Chebbi and Kirchaou Formations of the Dahar escarpment. An updated synthetic stratigraphic chart is proposed for the Triassic of Saharan Platform domain on the basis of the compilation of the new obtained results and the subsurface data taken from published literature.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorSoussi, Mohamed
dc.contributor.authorBłażejowski, Błażej
dc.contributor.authorMermer, Janusz
dc.contributor.authorTałanda, Mateusz
dc.contributor.authorBoukhalfa, Kamel
dc.contributor.authorDróżdż, Dawid
dc.contributor.authorNiedźwiedzki, Grzegorz
dc.contributor.authorSulej, Tomasz
dc.date.accessioned2024-01-25T11:29:36Z
dc.date.available2024-01-25T11:29:36Z
dc.date.issued2017
dc.description.financeNie dotyczy
dc.description.volume79
dc.identifier.doi10.1016/J.MARPETGEO.2016.10.019
dc.identifier.issn0264-8172
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/112469
dc.identifier.weblinkhttps://www.sciencedirect.com/science/article/abs/pii/S0264817216303580
dc.languageeng
dc.pbn.affiliationbiological sciences
dc.relation.ispartofMarine and Petroleum Geology
dc.relation.pages222-256
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enBiostratigraphy
dc.subject.enSedimentology
dc.subject.enTriassic
dc.subject.enTAGI
dc.subject.enSaharan Platform
dc.subject.enTunisia
dc.titleMiddle Triassic (Anisian-Ladinian) Tejra red beds and Late Triassic (Carnian) carbonate sedimentary records of southern Tunisia, Saharan Platform: Biostratigraphy, sedimentology and implication on regional stratigraphic correlations
dc.typeJournalArticle
dspace.entity.typePublication