Oblique rifting and sequential faulting in the Jurassic development of the northern North Sea

F˦rseth, R.B.; Knudsen, Bjørn-Egil; Liljedahl, T.; Midbøe, P.S.; Søderstrøm, Bo

doi:10.1016/s0191-8141(97)00045-x

Cited by 86 publications

(84 citation statements)

References 19 publications

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“…More northeasterly trending, displacement-normal faults developed later, in the basin ®ll, and became the predominant fault trend in the center of the basin. Fñrseth et al (1997) o ered a similar interpretation of the fault pattern in the northern North Sea (Fig. 20b), where basins localized along northerly trending Permian structures during NW±SE extension in the Jurassic.…”

Section: Geological Examples: Continental Riftsmentioning

confidence: 68%

Influence of rift obliquity on fault-population systematics: results of experimental clay models

Clifton

Schlische

Withjack

et al. 2000

Journal of Structural Geology

195

163

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Section: Geological Examples: Continental Riftsmentioning

confidence: 68%

Influence of rift obliquity on fault-population systematics: results of experimental clay models

Clifton

Schlische

Withjack

et al. 2000

Journal of Structural Geology

195

163

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“…Some authors suggest that it was coaxial with the Permian -Early Triassic rifting (Badley et al, 1988;Doré and Gage, 1987;Roberts et al, 1990) whereas others suggest WNW-ESE to NW-SE extension direction (Davies et al, 2001;Faerseth, 1996;Faerseth et al, 1997). The Middle Jurassic -Early Cretaceous extension is concentrated within the 25-40 km wide Viking Graben and the Sogn Graben ( Fig.…”

Section: Geological Settingmentioning

confidence: 99%

“…While normal faults with different orientations can form simultaneously during none-plane strain (e.g., Healy et al, 2015), crosscutting relations indicate that the NE-SW-striking segment of the Brage Fault developed later than the N-S-and NW-SE-striking faults (Fig. 7D), which suggests a change in extension direction from E-W to NW-SE during the Middle Jurassic -Early Cretaceous rift phase in this region (Faerseth et al, 1997). Davies et al (2001) took this view to the extreme, as they suggested that each of several sets of faults in the North Sea rift system are dip-slip normal faults that formed sequentially due to repeated variations in the extension direction, and related these changes to variations in the Middle Jurassic -Early Cretaceous regional extension direction.…”

Section: Changes In Extension Direction During Multiphase Riftingmentioning

confidence: 99%

“…As for the northern North Sea rift system, two rift phases are recognized: the ?Permian -Early Triassic and the Middle JurassicEarly Cretaceous rift phases (Badley et al, 1988;Bell et al, 2014;Faerseth, 1996;Faerseth et al, 1997;Steel and Ryseth, 1990;Yielding et al, 1992). The early consensus was that some of the faults initiated during the Permian -Early Triassic rifting were reactivated and played a significant role during the Middle JurassicEarly Cretaceous rift phase, while others were not (Badley et al, 1988;Roberts et al, 1993Roberts et al, , 1995Steel and Ryseth, 1990;Yielding et al, 1992).…”

Section: Introductionmentioning

confidence: 99%

“…The Oseberg area is located at the boundary between the Permian -Early Triassic and Middle JurassicEarly Cretaceous rift axis (Badley et al, 1984;Faerseth et al, 1997;Faerseth and 4 Ravnas, 1998; Tomasso et al, 2008), making it possible to study the faults related to both rift phases. The main goal is to understand the fault evolution and interaction between the two phases of rift-related faulting, and to explore what controls fault evolution in the Oseberg area and in multiphase rift basins in general.…”

Section: Introductionmentioning

confidence: 99%

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Influence of fault reactivation during multiphase rifting: the Oseberg area, Northern North Sea rift

Deng¹,

Fossen²,

Gawthorpe³

et al. 2017

Preprint

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Multiphase rifts tend to produce fault populations that evolve by the formation of new faults and reactivation of earlier faults. The resulting fault patterns tend to be complex and difficult to decipher. In this work we use seismic reflection data to examine the evolution of a normal fault network in the Oseberg Fault Block in the northern North Sea Rift System -a rift system that experienced Permian -Early Triassic and Middle Jurassic -Early Cretaceous rifting and exhibits N-S, NW-SE and NE-SW oriented faults.Both N-S-and NW-SE-striking faults were established during the Permian -Early

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Evolution of stress and fault patterns in oblique rift systems: 3‐D numerical lithospheric‐scale experiments from rift to breakup

Brune

2014

Geochem Geophys Geosyst

112

117

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Rifting involves complex normal faulting that is controlled by extension direction, reactivation of prerift structures, sedimentation, and dyke dynamics. The relative impact of these factors on the observed fault pattern, however, is difficult to deduce from field-based studies alone. This study provides insight in crustal stress patterns and fault orientations by employing a laterally homogeneous, 3-D rift setup with constant extension velocity. The presented numerical forward experiments cover the whole spectrum of oblique extension. They are conducted using an elastoviscoplastic finite element model and involve crustal and mantle layers accounting for self-consistent necking of the lithosphere. Despite recent advances, 3-D numerical experiments still require relatively coarse resolution so that individual faults are poorly resolved. This issue is addressed by applying a post processing method that identifies the stress regime and preferred fault azimuth at each surface element. The simple model setup results in a surprising variety of fault orientations that are solely caused by the three-dimensionality of oblique rift systems. Depending on rift obliquity, these orientations can be grouped in terms of rift-parallel, extension-orthogonal, and intermediate normal fault directions as well as strike-slip faults. While results compare well with analog rift models of low to moderate obliquity, new insight is gained in advanced rift stages and highly oblique settings. Individual fault populations are activated in a characteristic multiphase evolution driven by lateral density variations of the evolving rift system. In natural rift systems, this pattern might be modified by additional heterogeneities, surface processes, and dyke dynamics.

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Oblique rifting and sequential faulting in the Jurassic development of the northern North Sea

Cited by 86 publications

References 19 publications

Influence of rift obliquity on fault-population systematics: results of experimental clay models

Influence of rift obliquity on fault-population systematics: results of experimental clay models

Influence of fault reactivation during multiphase rifting: the Oseberg area, Northern North Sea rift

Evolution of stress and fault patterns in oblique rift systems: 3‐D numerical lithospheric‐scale experiments from rift to breakup

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