The Dezful Embayment and Abadan Plain (SW Iran) contain major parts of the remaining Iranian oil reserves. These provinces are characterized by two types structural closure: very gentle N–S- to NE–SW-trending basement-cored anticlines (Arabian-type highs) in SE; open tight, NW–SE-trending thrust-related folds NE (Zagros Fold–Thrust Belt; ZFTB). Most deep-seated upright symmetrical Cretaceous older units. In some cases they reveal steep faults their core which, light regional observations,...

We use samples from undeformed and deformed sandstones (single deformation band, band cluster, slip-surface cataclasite, fault core slip zone) to characterize their petrophysical properties (porosity, permeability, capillary pressure). Relationships between permeability porosity are described by power-law regressions where the exponent (D) decreases with increasing degree of (strain) experienced sample host rock (D, ∼9) ∼5). The approaches introduced in this work will allow geologists and/or...

Seismic mapping of subsurface faults is hampered by factors such as seismic resolution, velocity control for depth conversion and human bias. Here, we explore the challenges pitfalls related to interpreting normal comparing objective subjective uncertainties. A panel 20 interpreters, with different geoscientific backgrounds, interpreted in modern conventional (dominant frequency 40 Hz) high-resolution P-Cable 150 3D data from Hoop area, SW Barents Sea. The interpretations created test-panel...

The discipline of structural geology is taking an advantage compiling observations from multiple field sites to comprehend the bigger picture and constrain region's geological evolution. In this study we demonstrate how integration a range geospatial digital data sets that relate Paleogene fault thrust belt exposed in high Arctic Archipelago Svalbard, used teaching bachelor-level courses at University Centre Svalbard. This event led formation West Spitsbergen Fold Thrust Belt its associated...

The concept of fault facies is a novel approach to description adapted three-dimensional reservoir modeling purposes. Faults are considered strained volumes rock, defining envelope in which host-rock structures and petrophysical properties altered by tectonic deformation. consists varying number discrete originating from the host rock organized spatially according strain distribution displacement gradients. Fault related field data on dimensions, geometry, internal structure, properties,...

The West Spitsbergen fold‐and‐thrust belt formed along the transform plate boundary between Greenland and western Barents Sea during Paleocene‐Eocene breakup in northern North Atlantic. Approximately 20–40 km margin‐perpendicular shortening accumulated has been attributed to transpression strain partitioning a restraining bend but also head‐on collision. We have applied scaled analog tectonic modeling test former hypothesis. A pack of brittle quartz sand with shallow thin layer silicon putty...

The Zagros Fold and Thrust Belt of NE Iraq hosts a prolific hydrocarbon system. Reservoirs are commonly found in fractured Cretaceous carbonates (Shiranish Formation) such as the Taq Field located Kirkuk Embayment foothills. Data providing information on fractures core, image logs flowmeters from wells, surface observations. For comparison, an outcrop study has been undertaken around Bina Bawi Anticline (10 km Field), where same stratigraphical unit is exposed continuous, lenticular-shaped...

Analysis of the sedimentary architecture early Billefjorden Trough, an exceptionally well-exposed Carboniferous half-graben located in Svalbard, Arctic Norway, allows detailed reconstruction fault development and basin geometry. Sedimentary facies distribution reveals variability synrift fill, when array meso-scale intra-basinal faults segmented into rotated blocks with differential subsidence. Growth these larger systems impacted accommodation space drainage pattern expressed fluvial...

Abstract At the junction of Atlantic and Arctic margins, crustal‐scale Keisarhjelmen detachment north‐west Svalbard records previously unrecognised magnitudes extension. The separates a corrugated metamorphic core complex in footwall from mantling Devonian supradetachment basin hangingwall. has top‐N displacement more than 50 km, which is aligned with map‐scale corrugations, an upwards ductile to brittle transition shear related retrogression. This configuration striking similarities...

Smeaheia, a prominent fault block located on the Horda Platform, northern North Sea is identified as potential subsurface CO2 storage site. We utilise GN1101 3D seismic survey to generate high-resolution geomodel inform structural style and evolution of block, investigate geological controls proposed provide geometric framework basis for future analyses. Two basement-involved (first-order) north-south trending systems, Vette Fault Zone (VFZ) Øygarden Complex (ØFC), bound 15 km-wide block....

Research Article| July 01, 2000 Devonian, orogen-parallel, opposed extension in the Central Norwegian Caledonides Alvar Braathen; Braathen 1Geological Survey of Norway, N-7491 Trondheim, Norway Search for other works by this author on: GSW Google Scholar Øystein Nordgulen; Nordgulen Per-Terje Osmundsen; Osmundsen Torgeir B. Andersen; Andersen 2Institute Geology, University Oslo, 0316 Arne Solli; Solli David Roberts Author and Article Information Publisher: Geological Society America...

Research Article| October 01, 1999 Application of a critical wedge taper model to the Tertiary transpressional fold-thrust belt on Spitsbergen, Svalbard Alvar Braathen; Braathen 1Geological Survey Norway, P.O. Box 3006, N-7001 Trondheim, Norway Search for other works by this author on: GSW Google Scholar Steffen G. Bergh; Bergh 2University Tromsø, Institute Geology, N-9037 Harmon D. Maher, Jr 3Department Geography and University Nebraska, Omaha, Nebraska 68182-0199 Author Article Information...

The Nordfjord‐Sogn Detachment (NSD) zone of western Norway juxtaposes eclogites and gneisses lower crustal affinity with sedimentary deposits, suggesting that the experienced substantial displacement during Devonian extensional denudation Caledonides. Renewed activation occurred in Permian Jurassic‐Cretaceous times. detachment consists a succession fault‐related rocks reflecting various positions deformation mechanisms unroofing. In more detail, 1–2 km thick section NSD mylonites protoliths,...