3D structural modeling and restoration of the Apennine-Maghrebian chain in Sicily: Application for non-cylindrical fold-and-thrust belts

Balestra, M.; Corrado, S.; Aldega, L.; Rudkiewicz, J.; Sassi, W.

Risultato della ricerca: Article

2 Citazioni (Scopus)

Abstract

Thirteen seismic reflection profiles and field observations have been used to build a three-dimensional watertight geological model of the sub-surface architecture of the Trapanese carbonate platform unit of the Apennine-Maghrebian chain in the Mt. Kumeta and Mt. Rocca Busambra (NW Sicily, Italy). Either a single step or a two-step thrust-fault deformation model is acceptable on the basis of seismic interpretation but the integration of 3D model reconstruction and 3D geomechanical restoration, validates only the scenario with a single stage of deformation. The 3D model highlights along strike variations of the structural style for the Trapanese unit where pre-existing discontinuities (e.g. inherited Mesozoic normal faults)played an important role in the preferential occurrence of hinterland verging structures. In detail, backthrusts (N-verging)are dissected by tear faults along the Mt. Kumeta structure whereas an imbricate backthrust system evolves into thrust along the Mt. Rocca Busambra structure. Shortening estimate indicates low amount of internal deformation affecting the carbonate platform unit (<15%). The combined approach of three-dimensional geological modeling and restoration allowed us to: (i)discriminate the best structural interpretation for the subsurface architecture of the Apennine-Maghrebian chain, detecting issues or inconsistencies in previous seismic interpretations and (ii)propose a valuable tool for hydrocarbon exploration to be applied in other complex structural areas worldwide.
Lingua originaleEnglish
pagine (da-a)86-107
Numero di pagine22
RivistaTectonophysics
Volume761
Stato di pubblicazionePublished - 2019

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3D structural modeling and restoration of the Apennine-Maghrebian chain in Sicily: Application for non-cylindrical fold-and-thrust belts. / Balestra, M.; Corrado, S.; Aldega, L.; Rudkiewicz, J.; Sassi, W.

In: Tectonophysics, Vol. 761, 2019, pag. 86-107.

Risultato della ricerca: Article

Balestra, M.; Corrado, S.; Aldega, L.; Rudkiewicz, J.; Sassi, W. 2019, '3D structural modeling and restoration of the Apennine-Maghrebian chain in Sicily: Application for non-cylindrical fold-and-thrust belts', Tectonophysics, vol. 761, pagg. 86-107.
Balestra, M.; Corrado, S.; Aldega, L.; Rudkiewicz, J.; Sassi, W. / 3D structural modeling and restoration of the Apennine-Maghrebian chain in Sicily: Application for non-cylindrical fold-and-thrust belts. In: Tectonophysics. 2019 ; Vol. 761. pagg. 86-107.
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title = "3D structural modeling and restoration of the Apennine-Maghrebian chain in Sicily: Application for non-cylindrical fold-and-thrust belts",
abstract = "Thirteen seismic reflection profiles and field observations have been used to build a three-dimensional watertight geological model of the sub-surface architecture of the Trapanese carbonate platform unit of the Apennine-Maghrebian chain in the Mt. Kumeta and Mt. Rocca Busambra (NW Sicily, Italy). Either a single step or a two-step thrust-fault deformation model is acceptable on the basis of seismic interpretation but the integration of 3D model reconstruction and 3D geomechanical restoration, validates only the scenario with a single stage of deformation. The 3D model highlights along strike variations of the structural style for the Trapanese unit where pre-existing discontinuities (e.g. inherited Mesozoic normal faults)played an important role in the preferential occurrence of hinterland verging structures. In detail, backthrusts (N-verging)are dissected by tear faults along the Mt. Kumeta structure whereas an imbricate backthrust system evolves into thrust along the Mt. Rocca Busambra structure. Shortening estimate indicates low amount of internal deformation affecting the carbonate platform unit (<15{\%}). The combined approach of three-dimensional geological modeling and restoration allowed us to: (i)discriminate the best structural interpretation for the subsurface architecture of the Apennine-Maghrebian chain, detecting issues or inconsistencies in previous seismic interpretations and (ii)propose a valuable tool for hydrocarbon exploration to be applied in other complex structural areas worldwide.",
keywords = "3D geological modeling; 3D restoration; Apennine-Maghrebian chain; Carbonate platform unit; Seismic interpretation; Sicilian fold-and-thrust belt; Geophysics; Earth-Surface Processes",
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journal = "Tectonophysics",
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T1 - 3D structural modeling and restoration of the Apennine-Maghrebian chain in Sicily: Application for non-cylindrical fold-and-thrust belts

AU - Balestra, M.; Corrado, S.; Aldega, L.; Rudkiewicz, J.; Sassi, W.

AU - Sulli, Attilio

AU - Gasparo Morticelli, Maurizio

PY - 2019

Y1 - 2019

N2 - Thirteen seismic reflection profiles and field observations have been used to build a three-dimensional watertight geological model of the sub-surface architecture of the Trapanese carbonate platform unit of the Apennine-Maghrebian chain in the Mt. Kumeta and Mt. Rocca Busambra (NW Sicily, Italy). Either a single step or a two-step thrust-fault deformation model is acceptable on the basis of seismic interpretation but the integration of 3D model reconstruction and 3D geomechanical restoration, validates only the scenario with a single stage of deformation. The 3D model highlights along strike variations of the structural style for the Trapanese unit where pre-existing discontinuities (e.g. inherited Mesozoic normal faults)played an important role in the preferential occurrence of hinterland verging structures. In detail, backthrusts (N-verging)are dissected by tear faults along the Mt. Kumeta structure whereas an imbricate backthrust system evolves into thrust along the Mt. Rocca Busambra structure. Shortening estimate indicates low amount of internal deformation affecting the carbonate platform unit (<15%). The combined approach of three-dimensional geological modeling and restoration allowed us to: (i)discriminate the best structural interpretation for the subsurface architecture of the Apennine-Maghrebian chain, detecting issues or inconsistencies in previous seismic interpretations and (ii)propose a valuable tool for hydrocarbon exploration to be applied in other complex structural areas worldwide.

AB - Thirteen seismic reflection profiles and field observations have been used to build a three-dimensional watertight geological model of the sub-surface architecture of the Trapanese carbonate platform unit of the Apennine-Maghrebian chain in the Mt. Kumeta and Mt. Rocca Busambra (NW Sicily, Italy). Either a single step or a two-step thrust-fault deformation model is acceptable on the basis of seismic interpretation but the integration of 3D model reconstruction and 3D geomechanical restoration, validates only the scenario with a single stage of deformation. The 3D model highlights along strike variations of the structural style for the Trapanese unit where pre-existing discontinuities (e.g. inherited Mesozoic normal faults)played an important role in the preferential occurrence of hinterland verging structures. In detail, backthrusts (N-verging)are dissected by tear faults along the Mt. Kumeta structure whereas an imbricate backthrust system evolves into thrust along the Mt. Rocca Busambra structure. Shortening estimate indicates low amount of internal deformation affecting the carbonate platform unit (<15%). The combined approach of three-dimensional geological modeling and restoration allowed us to: (i)discriminate the best structural interpretation for the subsurface architecture of the Apennine-Maghrebian chain, detecting issues or inconsistencies in previous seismic interpretations and (ii)propose a valuable tool for hydrocarbon exploration to be applied in other complex structural areas worldwide.

KW - 3D geological modeling; 3D restoration; Apennine-Maghrebian chain; Carbonate platform unit; Seismic interpretation; Sicilian fold-and-thrust belt; Geophysics; Earth-Surface Processes

UR - http://hdl.handle.net/10447/359194

UR - https://doi.org/10.1016/j.tecto.2019.04.014

M3 - Article

VL - 761

SP - 86

EP - 107

JO - Tectonophysics

JF - Tectonophysics

SN - 0040-1951

ER -