Search Results - "Duffy, Oliver B."
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Tectono-stratigraphic evolution of salt-influenced normal fault systems: an example from the Coffee-Soil Fault, Danish North Sea
Published in Journal of the Geological Society (03-11-2023)“…We explore how the relationships between fault activity, salt movement and sediment loading affect the stratal geometry of the hanging wall throughout the…”
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Influence of minibasin obstruction on canopy dynamics in the northern Gulf of Mexico
Published in Basin research (01-02-2021)“…In salt‐detached gravity‐gliding/spreading systems the detachment geometry is a key control on the downslope mobility of the supra‐salt sequence. Here, we used…”
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The growth of non-colinear normal fault systems; What can we learn from 3D seismic reflection data?
Published in Journal of structural geology (01-01-2015)“…Many rift zones exhibit a range of fault orientations, rather than simple colinear faults that strike orthogonal to the inferred least principal stress. The…”
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Obstructed minibasins on a salt‐detached slope: An example from above the Sigsbee canopy, northern Gulf of Mexico
Published in Basin research (01-06-2020)“…Salt‐detached gravity gliding/spreading systems having a rugose base‐of‐salt display complex strain patterns. However, little was previously known about how…”
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Principles of shortening in salt basins containing isolated minibasins
Published in Basin research (01-06-2021)“…Shortening styles in salt‐influenced basins can vary markedly, with the volume and distribution of salt prior to shortening being a key control. Here, we use a…”
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The stratigraphic record of minibasin subsidence, Precaspian Basin, Kazakhstan
Published in Basin research (01-08-2020)“…Minibasins are fundamental components of many salt‐bearing sedimentary basins, where they may host large volumes of hydrocarbons. Although we understand the…”
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Mobile evaporite controls on the structural style and evolution of rift basins: Danish Central Graben, North Sea
Published in Basin research (01-06-2013)“…The Southern Tail‐End Graben, Danish Central Graben, is characterized by a lateral variation in the thickness and mobility of pre‐rift Zechstein Supergroup…”
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Structural architecture and composition of crystalline basement offshore west Norway
Published in Lithosphere (01-04-2019)“…Numerous studies have investigated the geodynamic history and lithological composition of the Proterozoic basement, Caledonian nappes, and Devonian extensional…”
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Fault-controlled fluid flow inferred from hydrothermal vents imaged in 3D seismic reflection data, offshore NW Australia
Published in Basin research (01-06-2016)“…Fluid migration pathways in the subsurface are heavily influenced by pre‐existing faults. Although studies of active fluid‐escape structures can provide…”
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Oblique reactivation of lithosphere-scale lineaments controls rift physiography – the upper-crustal expression of the Sorgenfrei–Tornquist Zone, offshore southern Norway
Published in Solid earth (Göttingen) (09-04-2018)“…Pre-existing structures within sub-crustal lithosphere may localise stresses during subsequent tectonic events, resulting in complex fault systems at…”
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Reactivation of intrabasement structures during rifting: A case study from offshore southern Norway
Published in Journal of structural geology (01-10-2016)“…Pre-existing structures within crystalline basement may exert a significant influence over the evolution of rifts. However, the exact manner in which these…”
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Fault growth and interactions in a multiphase rift fault network: Horda Platform, Norwegian North Sea
Published in Journal of structural geology (01-11-2015)“…Physical models predict that multiphase rifts that experience a change in extension direction between stretching phases will typically develop non-colinear…”
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Structural evolution of salt-influenced fold-and-thrust belts: A synthesis and new insights from basins containing isolated salt diapirs
Published in Journal of structural geology (01-09-2018)“…Lateral shortening is expressed in unique ways in salt basins, especially if pre-shortening diapirs are present. We present an overview of previously-published…”
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14
Growth folds above propagating normal faults
Published in Earth-science reviews (01-09-2019)“…Growth folds above the upper tips of normal faults are ubiquitous in extensional settings, especially during the early phases of extension and in salt-rich…”
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Balancing sub- and supra-salt strain in salt-influenced rifts: Implications for extension estimates
Published in Journal of structural geology (01-09-2017)“…The structural style of salt-influenced rifts may differ from those formed in predominantly brittle crust. Salt can decouple sub- and supra-salt strain,…”
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Lateral mobility of minibasins during shortening: Insights from the SE Precaspian Basin, Kazakhstan
Published in Journal of structural geology (01-04-2017)“…Minibasin provinces are widespread and can be found in all types of salt tectonic settings, many of which are prone to shortening. Previous studies of how…”
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The topology of evolving rift fault networks: Single-phase vs multi-phase rifts
Published in Journal of structural geology (01-03-2017)“…Rift fault networks can be complex, particularly those developed by multiple periods of non-coaxial extension, comprising non-colinear faults with many…”
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The origin of salt-encased sediment packages: Observations from the SE Precaspian Basin (Kazakhstan)
Published in Journal of structural geology (01-04-2017)“…Intrasalt sediment packages containing siliciclastic sediments, carbonate sediments, or non-halite evaporites such as gypsum or anhydrite are common within…”
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Quantifying the growth history of seismically imaged normal faults
Published in Journal of structural geology (01-09-2014)“…Throw-depth profiles and expansion index plots are typically used to constrain the growth history of seismically imaged normal faults. However, the ability to…”
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