Oblique rifting along transfer zones: The structural evolution model revealed by physical modeling

Rodrigues, Ricardo de Souza; Silva, Fernando César Alves da; Venâncio, Marilia Barbosa

doi:10.1016/j.jsames.2022.104153

Cited by 3 publications

(2 citation statements)

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“…Such transverse faults were also identified and well‐studied in the Saar‐Nahe segment of the basin where they display a regular spacing of about 10 km (Henk, 1993; Stollhofen, 1998; Stollhofen & Stanistreet, 1994) As shown by lateral syn‐sedimentary variations in the Stephanian to Lower Permian series exposed in this part of the basin, these faults were proposed to be active at least during the extensional phase forming transfer zones (described as transtensional) accommodating differential subsidence and sedimentary infill (Stollhofen, 1998; Stollhofen & Stanistreet, 1994). Such transfer faults, almost perpendicular to the direction of the main normal fault system, have been frequently recognized in extensional basins and rift zones; that is, the Basin and Range (Faulds et al., 1990), Gulf of Suez rift (Moustafa, 2002), East African rift (Morley et al., 1990), Pannonian basin (Tari et al., 1992) and were the subject of extensive modeling (Liu et al., 2022; Paul & Mitra, 2013; Rodrigues et al., 2023; Schlische & Withjack, 2009). These different studies point to some variable amounts of strike‐slip and normal movements along transfer faults depending on the obliquity of the extension direction.…”

Section: A New Tectonic Model For the Lsnbmentioning

confidence: 99%

A Deformed Wedge‐Top Basin Inverted During the Collapse of the Variscan Belt: The Permo‐Carboniferous Lorraine Basin (NE France)

Hemelsdaël,

Averbuch,

Beccaletto

et al. 2023

Tectonics

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A new structural model is presented for the Permo‐Carboniferous Lorraine Basin (NE France), a major intramountain basin that developed during the latest stages of the Variscan orogeny (ca. 315–270 Ma). Digitalized well logs and reprocessed seismic data were used to decipher the kinematic evolution of this basin located along the Rhenohercynian orogenic suture zone. The basin was initiated during the late collision stage (Early to Middle Pennsylvanian) in a wedge‐top position upon the Saxothuringian retro‐wedge. The syn‐orogenic sequence is delimited to the north by the major SE‐verging Metz Thrust, which is part of the backthrust system that propagated during Middle Pennsylvanian (Late Westphalian). Seismic data provide evidence of negative tectonic inversion, allowing the formation of syn‐rift depocenters (Late Pennsylvanian‐Early Permian) above the former anticlines. Erosion of these anticlines results in a major unconformity marking the onset of post‐orogenic collapse. The late Early Permian shortening (Saalian phase) is suggested to reactivate former thrusts and normal faults, thus generating late uplift of the basin. The post‐orogenic phase is complex and diachronous at basin scale, and both compression and extension can be recorded in the same area over a short period (<10 Myr). The Late Carboniferous negative tectonic inversion along the Rhenohercynian suture zone is proposed to result from the lithospheric delamination of the Variscan orogenic roots. The associated upwelling of asthenospheric material is recorded by intense magmatic activity, and can be, in turn, considered as the main trigger for the subsequent thermal subsidence of the Mesozoic Paris Basin.

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Section: A New Tectonic Model For the Lsnbmentioning

confidence: 99%

A Deformed Wedge‐Top Basin Inverted During the Collapse of the Variscan Belt: The Permo‐Carboniferous Lorraine Basin (NE France)

Hemelsdaël,

Averbuch,

Beccaletto

et al. 2023

Tectonics

View full text Add to dashboard Cite

show abstract

“…shown by lateral syn-sedimentary variations in the Stephanian to Lower Permian series exposed in this part of the basin, these faults were proposed to be active at least during the extensional phase forming transfer zones (described as transtensional) accommodating differential subsidence and sedimentary infill (Stollhofen, 1998;Stollhofen and Stanistreet, 1994). Such transfer faults, almost perpendicular to the direction of the main normal fault system, have been frequently recognized in extensional basins and rift zones; that is, the Basin and Range (Faulds et al, 1990), Gulf of Suez rift (Moustafa, 2002), East African rift (Morley et al, 1990), Pannonian basin (Tari et al, 1992) and were the subject of extensive modeling (Liu et al, 2022;Paul and Mitra, 2013;Rodrigues et al, 2023;Schlische and Withjack, 2009). These different studies point to some variable amounts of strike-slip and normal movements along transfer faults depending on the obliquity of the extension direction.…”

Section: Integration Of Seismic Data Into a New Regional Structural Mapmentioning

confidence: 99%

A deformed wedge-top basin inverted during the collapse of the Variscan belt: the Permo-Carboniferous Lorraine Basin (NE France)

Hemelsdaël¹,

Averbuch

Beccaletto

et al. 2023

Preprint

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<div> <div> <div> <p>A new structural model is presented for the Permo-Carboniferous Lorraine Basin (NE France), a major intramountain basin that developed during the latest stages of the Variscan orogeny (ca 315&#8211;270 Ma). This basin is buried in NE France below the Paris Basin but outcrops in southern Germany (Saar-Nahe Basin). Digitalized well logs and reprocessed seismic data were used to decipher the kinematic evolution of this basin located along the Rhenohercynian orogenic suture zone. The basin initiated during the late collision stage (Late Namurian-Westphalian) in a wedge- top position upon the Saxoth&#252;ringian retrowedge. The syn-orogenic sequences are delimited to the north by the major SE-directed Metz Thrust, which is part of the backthrust system that propagated during Late Westphalian times. Seismic data provide evidence of negative tectonic inversion, allowing the formation of syn-rift depocenters (Stephanian-Early Permian) above the former anticlines. Erosion of these anticlines results in a major unconformity (base of Stephanian) marking the onset of post-orogenic collapse stage. The late Early Permian shortening (Saalian phase) reactivated former thrusts and normal faults, thus generating uplift of the basin. The post- orogenic phase is complex and diachronous at basin scale, and both compression and extension can be recorded in the same area over a short period (<10 Ma). The Late Carboniferous negative tectonic inversion along the Rhenohercynian suture zone is proposed to result from the lithospheric delamination of the Variscan orogenic roots. The associated upwelling of asthenospheric material is recorded by intense magmatic activity, and can be, in turn, considered as the main trigger for the subsequent thermal subsidence of the Paris basin.</p> </div> </div> </div>

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Structures evolution along strike-slip fault zones: The role of rheology revealed by PIV analysis of analog modeling

Venâncio

Silva

2023

Tectonophysics

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Oblique rifting along transfer zones: The structural evolution model revealed by physical modeling

Cited by 3 publications

References 121 publications

A Deformed Wedge‐Top Basin Inverted During the Collapse of the Variscan Belt: The Permo‐Carboniferous Lorraine Basin (NE France)

A Deformed Wedge‐Top Basin Inverted During the Collapse of the Variscan Belt: The Permo‐Carboniferous Lorraine Basin (NE France)

A deformed wedge-top basin inverted during the collapse of the Variscan belt: the Permo-Carboniferous Lorraine Basin (NE France)

Structures evolution along strike-slip fault zones: The role of rheology revealed by PIV analysis of analog modeling

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