Growth of normal faults in multilayer sequences: A 3D seismic case study from the Egersund Basin, Norwegian North Sea

Tvedt, Anette Broch Mathisen; Rotevatn, Atle; Jackson, Christopher; Fossen, Haakon; Gawthorpe, Robert L.

doi:10.1016/j.jsg.2013.08.002

Cited by 109 publications

(117 citation statements)

References 39 publications

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“…These points of dip linkage indicates that the upper and the lower segments of F1 and F4 have been linked by reactivation through dip linkage (Mansfield and Cartwright, 1996;Omosanya and Alves, 2014;Tvedt et al, 2013).…”

Section: Discussionmentioning

confidence: 93%

“…In the study area, the non-reactivated faults include: (1) i.e, strike-linkage (Baudon and Cartwright, 2008;Omosanya and Alves, 2014;Tvedt et al, 2013;Jackson and Rotevatn, 2013). As the preferred direction of fault reactivation is directly related to the orientation of the fault plane relative to the principal stress direction, the strain causes reactivation, friction coefficients and cohesion, fault segmentation, maximum dimension and throw values (Sibson, 1985;Baudon and Cartwright, 2008;Richard and Krantz, 1991;White et al, 1986).…”

Section: Discussionmentioning

confidence: 99%

“…In order to understand the history of fault growth, linkage and reactivation, fault displacement data are used (Omosanya and Alves, 2014;Tvedt et al, 2013). Fault displacement data used in this thesis include the plot of displacement-distance (t-x), throw-depth (t-z), expansion and growth indices.…”

Section: Fault Displacement Analysismentioning

confidence: 99%

“…These plots provide insights about potential reactivation of fault by dip linkage (Mansfield and Cartwright, 1996;Omosanya and Alves, 2014;Tvedt et al, 2013), and also distinguishing faults that developed through synsedimentary activity from blind or radial propagation of tips (Childs et al, 2003;Omosanya and Alves, 2014). Expansion Index (EI) has been used to define periods of most significant fault growth form normal faults (Beach, 1984;Bischke, 1994;Gibbs, 1983;Mansfield and Cartwright, 1996;Pochat et al, 2009;Thorsen, 1963) but does not contain any information about absolute slip rate (Cartwright et al, 1998).…”

Section: Fault Displacement Analysismentioning

confidence: 99%

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Deep-seated faults and hydrocarbon leakage in the Snøhvit Gas Field, Hammerfest Basin, Southwestern Barents Sea

Mohammedyasin

Lippard

Omosanya

et al. 2016

Marine and Petroleum Geology

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High-quality 3D seismic data are used to analyze the history of fault growth and hydrocarbon leakage in the Snøhvit Field, southwestern Barents Sea. The aim of this work is to evaluate the role of tectonic fracturing as a mechanism driving fluid-flow in the study area. To achieve this aim, an integrated approach including seismic interpretation, multiple seismic attribute analysis, fault modeling and displacement analysis was used.The six major faults in the study area are dip-slip normal faults which are characterized by complex lateral and vertical segmentation. The three main episodes of fault reactivation interpreted were in late Jurassic (Kimmeridgian), early Cretaceous and Paleocene times. Fault reactivation in the study area is mainly through dip-linkage. Throw-distance plots of the representative faults also revealed along-strike linkage and multi-skewed C-type profiles. The throw profiles show that faults in the study area evolved through polycyclic activity involving both blind propagation, syn-sedimentary activity and that they have their maximum displacement at the reservoir zone. The expansion and growth indices provide evidence for coeval fault activity with sedimentation and interaction of the faults with a free surface during their evolution.

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Section: Discussionmentioning

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Fault Displacement Analysismentioning

confidence: 99%

Section: Fault Displacement Analysismentioning

confidence: 99%

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Deep-seated faults and hydrocarbon leakage in the Snøhvit Gas Field, Hammerfest Basin, Southwestern Barents Sea

Mohammedyasin

Lippard

Omosanya

et al. 2016

Marine and Petroleum Geology

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“…9b). Tvedt et al (2013) noted this along-strike variation in the degree 256 of across-salt linkage, suggesting sub-and supra-salt faults may be locally physically linked 257 through the thin salt (i.e. Fig.…”

Section: 1mentioning

confidence: 91%

Supra-salt normal fault growth during the rise and fall of a diapir: Perspectives from 3D seismic reflection data, Norwegian North Sea

Tvedt

Rotevatn

Jackson

2016

Journal of Structural Geology

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Strike‐Slip Tectonics in the SW Barents Sea During North Atlantic Rifting (Swaen Graben, Northern Norway)

et al. 2017

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This study uses high‐quality, three‐dimensional (3‐D) seismic data to investigate the occurrence of strike‐slip faults in the Swaen Graben, SW Barents Sea. The Swaen Graben is divided into two principal subbasins: SSB1 and SSB2. The along‐strike and along‐dip displacement variations and scale relationships are analyzed for 42 faults. The displacement profiles for these faults are complex in the Swaen Graben, showing clear evidence for polycyclic fault growth and marked synsedimentary activity. The observed variations in the displacement profiles indicate complex along‐strike segmentation, linkage, and mechanical interactions at distinct structural levels. Along‐dip displacement minima indicate fault reactivation by dip linkage. Importantly, geometric evidence for strike‐slip faulting in the Swaen Graben includes the presence of extensional horsetail splay faults, positive flower structures, and minor transfer faults. This study shows that the faults in the Swaen Graben developed under extensional regimes during Late Jurassic to Early Cretaceous rifting and were reactivated by regional stresses during the Late Cretaceous. The two principal strike‐slip faults in the Swaen Graben reveal sinistral movement and are linked at a shallow depth by minor transfer faults at a relay zone. Our work further demonstrates the occurrence of Late Mesozoic strike‐slip movements in the SW Barents Sea, which were induced by regional tectonics, halokinesis, and fault block rotation. Importantly, strike‐slip faulting in the region extends perhaps into the Cenozoic interacting with extension during the North Atlantic rifting.

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Growth of normal faults in multilayer sequences: A 3D seismic case study from the Egersund Basin, Norwegian North Sea

Cited by 109 publications

References 39 publications

Deep-seated faults and hydrocarbon leakage in the Snøhvit Gas Field, Hammerfest Basin, Southwestern Barents Sea

Deep-seated faults and hydrocarbon leakage in the Snøhvit Gas Field, Hammerfest Basin, Southwestern Barents Sea

Supra-salt normal fault growth during the rise and fall of a diapir: Perspectives from 3D seismic reflection data, Norwegian North Sea

Strike‐Slip Tectonics in the SW Barents Sea During North Atlantic Rifting (Swaen Graben, Northern Norway)

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