Geodynamic Evolution of Northeastern Tunisia During the Maastrichtian-Paleocene Time: Insights from Integrated Seismic Stratigraphic Analysis

被引:7
作者
Abidi, Oussama [1 ,2 ,3 ]
Inoubli, Mohamed Hedi [1 ,3 ]
Sebei, Kawthar [1 ,3 ]
Amiri, Adnen [1 ,3 ]
Boussiga, Haifa [1 ,5 ]
Nasr, Imen Hamdi [1 ,2 ]
Ben Salem, Abdelhamid [4 ]
Elabed, Mahmoud [4 ]
机构
[1] Univ Tunis El Manar, Res Unit Appl Geophys, Tunis 1060, Tunisia
[2] Univ Carthage, Fac Sci Bizerte, Jarzouna 7021, Tunisia
[3] Univ Tunis El Manar, Fac Sci Tunis, Tunis 1060, Tunisia
[4] Entreprise Tunisienne Act Petr, 54 Ave Mohamed 5, Tunis 1002, Tunisia
[5] Univ Carthage, Inst Natl Agron Tunisie, 43 Ave Charles Nicolle, Tunis 1082, Tunisia
关键词
Maastrichtian-Paleocene; El Haria formation; Calibration; Seismic stratigraphy; Geodynamics; Seismic inversion; Tunisia; SYNSEDIMENTARY TECTONIC ACTIVITY; PLANKTIC FORAMINIFERA; STRUCTURAL EVOLUTION; NORTH; EOCENE; PALEOGENE; AFRICA; EVENTS; MARGIN; CONSTANTINOIS;
D O I
10.1007/s10712-016-9404-0
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
The Maastrichtian-Paleocene El Haria formation was studied and defined in Tunisia on the basis of outcrops and borehole data; few studies were interested in its three-dimensional extent. In this paper, the El Haria formation is reviewed in the context of a tectono-stratigraphic interval using an integrated seismic stratigraphic analysis based on borehole lithology logs, electrical well logging, well shots, vertical seismic profiles and post-stack surface data. Seismic analysis benefits from appropriate calibration with borehole data, conventional interpretation, velocity mapping, seismic attributes and post-stack model-based inversion. The applied methodology proved to be powerful for charactering the marly Maastrichtian-Paleocene interval of the El Haria formation. Migrated seismic sections together with borehole measurements are used to detail the three-dimensional changes in thickness, facies and depositional environment in the Cap Bon and Gulf of Hammamet regions during the Maastrichtian-Paleocene time. Furthermore, dating based on their microfossil content divulges local and multiple internal hiatuses within the El Haria formation which are related to the geodynamic evolution of the depositional floor since the Campanian stage. Interpreted seismic sections display concordance, unconformities, pinchouts, sedimentary gaps, incised valleys and syn-sedimentary normal faulting. Based on the seismic reflection geometry and terminations, seven sequences are delineated. These sequences are related to base-level changes as the combination of depositional floor paleo-topography, tectonic forces, subsidence and the developed accommodation space. These factors controlled the occurrence of the various parts of the Maastrichtian-Paleocene interval. Detailed examinations of these deposits together with the analysis of the structural deformation at different time periods allowed us to obtain a better understanding of the sediment architecture in depth and the delineation of the geodynamic evolution of the region.
引用
收藏
页码:617 / 649
页数:33
相关论文
共 94 条
  • [1] Abidi O., 2014, SEARCH DISCOVERY ART, P30368
  • [2] Abidi O, 2012, THESIS
  • [3] Abidi O, 2016, INT C APPL GEOL ENV
  • [4] [Anonymous], THESIS
  • [5] Characterisation of Mesozoic-Cenozoic deformations and palaeostress fields in the Central Constantinois, northeast Algeria
    Aris, Y
    Coiffait, PE
    Guiraud, M
    [J]. TECTONOPHYSICS, 1998, 290 (1-2) : 59 - 85
  • [6] Ayed NB, 1986, THESIS
  • [7] Bajanik S, 1978, NOTICE FEUILLE ENFID
  • [8] Bedir M, 1995, THESIS
  • [9] Ben Chelbi M., 2008, AFRICA GEOSCIENCES R, V15, P229
  • [10] Ben Ferjani A, 1990, ETAP MEMOIR ED