The Middle to Late Triassic of Central Saudi Arabia with emphasis on the Jilh Formation. Part II: sequence stratigraphy, depositional and structural history, correlations and paleogeography - BRGM - Bureau de recherches géologiques et minières Accéder directement au contenu
Article Dans Une Revue Comptes Rendus. Géoscience Année : 2023

The Middle to Late Triassic of Central Saudi Arabia with emphasis on the Jilh Formation. Part II: sequence stratigraphy, depositional and structural history, correlations and paleogeography

Résumé

New biostratigraphic data reported by Le Nindre et al. (2023-this volume) improve the sequence stratigraphic understanding of the Middle-Late Triassic mixed carbonate-silicilclastic Jilh Formation and overlying siliciclastic Minjur Formation at outcrop in Central Saudi Arabia. The Anisian Tr40, Ladinian Tr50, Julian Tr60, Tuvalian Tr70 and Alaunian Tr80 MFS are all identified and their ages discussed. A major Carnian-Norian hiatus (Tr80 SB) approximates to but notably cuts across the mapped Jilh-Minjur Formation boundary. A younger Late Norian-Rhaetian transgression (Tr90 MFS?) is also identified. All of these major transgressive-regressive sequences and hiatuses can be identified with confidence and correlated at the regional scale with time-equivalent carbonates. The ages of subsurface lithostratigraphic units identified elsewhere across the Arabian Plate, notably the "Jilh, Sefidar and Marker Dolomites", "Jilh Evaporite" (sometimes "Carnian Salinity Crisis") and the * Corresponding author.
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Dates et versions

hal-04438935 , version 1 (05-02-2024)

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Yves-Michel Le Nindre, Roger Brett Davies, Benoit Issautier, Leopold Krystyn, Denis Vaslet, et al.. The Middle to Late Triassic of Central Saudi Arabia with emphasis on the Jilh Formation. Part II: sequence stratigraphy, depositional and structural history, correlations and paleogeography. Comptes Rendus. Géoscience, 2023, 355 (S2), pp.1 - 36. ⟨10.5802/crgeos.227⟩. ⟨hal-04438935⟩
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