Aptian−Albian extension in Tethyan rifted continental passive margin of Tunisia inferred from sequential restorations of balanced cross-sections and expansion index

Gharbi, Mohamed; Boote, David R. D.; Aich, Nejla Sekatni; Moustafa, Mohamed S.H.; Gabtni, Hakim

doi:10.1016/j.marpetgeo.2022.105818

Cited by 11 publications

(2 citation statements)

References 107 publications

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“…Currently, the most mature methods for studying the characteristics of fault activity are the paleo-drop method and the growth index method [40][41][42] . The balanced cross-section and structural physical simulation methods are frequently utilized to investigate tectonic evolution and genetic mechanism [43][44][45][46] .…”

Section: The Research Methodsmentioning

confidence: 99%

Structural Characteristics and Evolution Mechanism of Paleogene Faults in the Central Dongying Depression, Bohai Bay Basin

Zhang,

Bai,

Wang

et al. 2024

Preprint

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This study used the growth index, fault activity rate and fault distance burial depth curve methods to analyze the characteristics of fault activity in the central area of Dongying depression. Using typical fault evolution and dynamic analysis to study the stages of fault evolution in the area, and using physical simulation experiments to study the mechanism and evolution process of fault formation. According to the results, the faults in the study area can be classified into four types. The Shicun fault and the pre-existing faults in the basin developed in the Paleogene Kongdian to Es4 period. Es3x and Es3z stages were characterized by strong extensional fault activities. The effect of strike-slip transformation from the Es3s to Es1 period was strengthened. The extensional fault continued to be active in Dongying period, and the strike-slip fault was basically stopped. The study area has been in the depression stage since Neogene. The physical simulation experiments show that the northern He 125 fault system is a fault combination composed of a main fault and broom-shaped branches formed by normal fault activities in the early stages and dextral strike slip processes in the late periods. The central en echelon fault system is a fault combination composed of three R fractures inherited the NE-SW basement fault and regulated by the later dextral strike-slip activities. The southern Wangjiagang fault system is a complex fault combination composed of Wangjiagang structure (P fracture) and Bamianhe structure (R fracture) developed from the Tanlu concealed branch strike-slip fault. This paper provided important reference for further research on the tectonic evolution and hydrocarbon accumulation in Dongying depression.

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Section: The Research Methodsmentioning

confidence: 99%

Structural Characteristics and Evolution Mechanism of Paleogene Faults in the Central Dongying Depression, Bohai Bay Basin

Zhang,

Bai,

Wang

et al. 2024

Preprint

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“…Frontiers in Earth Science frontiersin.org hanging wall of an ancient normal fault (Figures 13A, B). By restoring the bedding plane to its original horizontal orientation (Gharbi et al, 2022), Mahil Formation's fault-controlled deposits was observed after pre-folding. This extensional phase occurred concurrently with the rifting in the Arabian plate in the north and the rapid subsidence in the passive margin basin of the Neo-Tethys in the south (Glennie, 2000;Sharland et al, 2001).…”

Section: Syn-rift Tethyan Passive Margin Geometrymentioning

confidence: 99%

Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman

Moustafa,

Al Raqaishi,

El-Ghali

et al. 2023

Front. Earth Sci.

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This research presents findings from a study focused on the Lower Triassic (Induan) Lower Mahil KS-1 Formation, situated on a homoclinal carbonate platform in Northern Oman. The sequence stratigraphy of this formation is characterized by a considerable thickness variation, slumps, and breccia deposits related to active normal faults coupled with intra-basin growth faults. The main objective was to establish a reliable stratigraphic framework for the Lower Mahil KS-1 Formation by integrating high-resolution carbon isotope data along with high-resolution spectral and total gamma-ray data. To achieve this, whole-rock samples were analyzed for δ13C and δ18O isotopes. Spectral and total gamma-ray records were obtained for the formation. Isotope sampling is conducted every 0.5 m in the Saiq Plateau and Wadi Sahtan sections. Furthermore, spectral gamma-ray measurements were taken at intervals of 10 cm from the logged sections. Within the third-order sequence, the spectral gamma-ray data revealed a distinct sea-level trend, leading to the division of KS1 into two different parts. Five fourth-order depositional sequences were identified by analyzing stable carbon isotopes, uranium, and total gamma-ray profiles. Four of these sequences displayed complete patterns, reflecting transgression and regression phases, while the fifth sequence was incomplete and solely comprised a transgressive phase. An essential outcome of the study is the correlation of the δ13C curve of the Lower Mahil KS-1 Formation with other similar formations around the Tethys region. This correlation indicates that the Lower Mahil KS-1 Formation captures the near-primary signal of carbon isotope variations in coeval seawater. As a result, it holds promise as a reference section for future investigations and studies in this field. Compared to the prior investigation, this study utilizes data with higher precision, capturing spectral gamma-ray measurements at 10 cm intervals and isotope measurements at 50 cm intervals. Furthermore, the study’s focus is confined explicitly to KS1.

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Structural control of the geometry and grain size distribution of the Miocene reservoir in the coastal region of Sfax, Tunisia, using well logging data

Khalfi,

Marouani,

Baklouti

et al. 2023

Euro-Mediterr J Environ Integr

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Aptian−Albian extension in Tethyan rifted continental passive margin of Tunisia inferred from sequential restorations of balanced cross-sections and expansion index

Cited by 11 publications

References 107 publications

Structural Characteristics and Evolution Mechanism of Paleogene Faults in the Central Dongying Depression, Bohai Bay Basin

Structural Characteristics and Evolution Mechanism of Paleogene Faults in the Central Dongying Depression, Bohai Bay Basin

Gamma-ray, stable carbon and oxygen isotope chemostratigraphy and sequence stratigraphy of the Lower Mahil Formation (KS-1 Khuff-Equivalent), Northern Oman

Structural control of the geometry and grain size distribution of the Miocene reservoir in the coastal region of Sfax, Tunisia, using well logging data

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