Tectonics of strikeslip restraining and releasing bends geological. The maritimes basin is an upper paleozoic sedimentary basin centered in the gulf of st. The san bernardo fault belt, to the west, is a nnw range characterized by. Tectonic settings of strikeslip faults and related strike slip basins. The basin subsided by simple shear on lowangle, detached normal faults of the upper crust and by pure shear of the lower crust.
Strikeslip also called transcurrent, wrench, or lateral faults are similarly caused by horizontal compression, but they release their energy by rock displacement in a horizontal direction almost parallel to the compressional force. Santa maria basin assessment province, california for the 1987 national assessment of undiscovered oil and gas resources by caroline m. Lowangle faulting in strikeslip dominated settings. However, from the recent studies with the methods of coherent and curvature, they showed that the flower structure developed at jurassic showing a y type in seismic section. Strikeslip deformation, basin formation, and sedimentation. Slip is defined as the relative movement of geological features present on either side of a fault plane. This special publication is an outgrowth of a research symposium held at the 1984 joint meeting of sepm and aapg in san antonio, texas. Other articles where strikeslip fault is discussed. Pdf strikeslip basin its configuration and sedimentary facies.
A faults sense of slip is defined as the relative motion of the rock on each side of the fault with respect to the other side. The miocene sequence documents 1 volcanism and northsouth tension without net extension at 1815 ma 2 relative uplift about 15. With the initiation of either dextral or sinistral movement. Stress changes from the 2008 wenchuan earthquake and. In geology, a basin is a region where subsidence generates accommodation space for the deposition of sediments. However, as the earths crust is not homogeneous, they can also be observed in compressional and extensional. These authors determined that the strikeslip faults in. Pdf examples of each type of strikeslip basins are provided.
Transform and transcurrent transform plate boundrys transcurrent upper crust only example of strike slip basin. The fault plane is essentially vertical, and the relative slip is lateral along. Implications for the uplift history of the tibetan plateau. Basins of extensional and strikeslip settings is mu. Structural analysis of ernst tinaja canyon focusing on. What are the 2 types of faults in strike slip basins. Implications for fault architecture and basin formation jillian m. Section 2 presents the new models for rift, postrift, transtensional and strike slip basin settings.
A fault is a fracture or zone of fractures between two blocks of rock. Subsequently, the caribbean plate moved along major strikeslip faults into a preexistent jurassic proto caribbean basin between north and south america. Prospectivity of the strikeslip fault bounded pishin fold belt basin, pakistan authors. The evolution of this basin was profoundly influenced by strikeslip movement on the rinconada fault, which bisected the depocenter beginning circa 15 ma. Conjugate strikeslip fault systems may fit well within the ns oriented extensional regime of western turkey. Faults allow the blocks to move relative to each other. Possible strikeslip components on monoclines at the powder river basinblack hills uplift margin. Neogene strikeslip faulting in sakhalin and the japan sea. To address the influence of strikeslip motion on petroleum system development, we constructed a threedimensional 3d basin and petroleum system model that incorporates strikeslip. Strike slip faulting has been abundantly reproduced with analogue experiments. Complex progressive ductile deformation on dutch island, narragansett basin, rhode island, is localized along a system of nonparallel strikeslip faults with opposite senses of motion.
The eastern part of the basin is characterized by extensional style structures. Frequently, the basins are rhombic or sigmoidal in shape. Faults may range in length from a few millimeters to thousands of kilometers. In addition to developing a methodology for basin modeling with. Passive margin subsidence is characterized by two stages, rapid initial, synrift subsidence and slow postrift thermal subsidence, with increasing subsidence rates toward the adja.
The salinas basin is selected as the study area for developing this methodology because of its strikeslip history, and because it contains only one petroleum system. Fracture characterization in the san bernardo fold belt, san jorge basin, argentina laura chiaramonte. Transpressional mini foreland basin polygenetic strike slip in compressional or extensional region. A pullapart basin will begin its formation between two parallel or subparallel opposing strikeslip faults. The black hills and fanny peak monoclines, which intersect near newcastle, wyoming, separate the black hills uplift from the eastern powder river basin. Structural analysis of progressive deformation within a. Most faults produce repeated displacements over geologic. Shaded relief map showing the natural geomorphic provinces holt x qui x stru x upi x file. Tarim basin along the luojianglisai fault or inside the altyn mountains along the jianglisai fault.
Identification of the strikeslip faults in central. Stepover basins transtensional or pullapart basins c. Strikeslip faults an extensive system of strikeslip faults in the park fig. The models of sequence stratigraphy and depositional. Results will demonstrate the impact of strikeslip faulting on petroleum systems in transpressional settings. Slip mobile zones is a collection of 14 articles on the topic, edited by peter f. Rather than enforcing a rigorously uniform terminology in this book, we decided to set down our preferred definitions in a glossary, and. This file may not be posted to any web site, but authors may post. An edited collection of articles on obliqueslip mobile zone sedimentation sedimentation in oblique. An integrated study of cautoguacanayabo strikeslip basin has allowed establishing its tectonostratigraphic evolution. This movement may occur rapidly, in the form of an earthquake or may occur slowly, in the form of creep. Integrating strikeslip tectonism with threedimensional. The topic is introduced with an essay on the characteristics and identification of strikeslip fault systems.
The basin formed originally as a sinistral strikeslip basin 77, 86, but developed into a dextral strikeslip basin after the change in the sense of fault displacement of the rrfz 87, 88. A pullapart basin is a structural basin where two overlapping en echelon faults or a fault bend creates an area of crustal extension undergoing tension, which causes the basin to sink down. Cenozoic tectonostratigraphic evolution of the strikeslip. In this paper we describe both the north and the south ends of the strikeslip zone, respectively, in. The mainshock of the 12 may earthquake ruptured with as much as 9 m of slip along the boundary between the longmen shan and sichuan basin. Tectonic evolution of the anadarko basin region, oklahoma. Field observations by rozhdestvensky 1982 described dextral miocene strikeslip motion along the faults. Their analogue models have shown that extensional processes generate large numbers of intersecting strikeslip curvilinear.
Early phases of basin formation included the development of partly connected subbasins bounded by highangle faults, in an overall strikeslip setting. Glossary strikeslip deformation, basin formation, and. Strike slip faults, salt tectonics and inversion tectonics jan kees blom january 2011 strike slip horizontal displacement, strike slip where two lithospheric plates move past each other, we can observe strike slip fault zones slip along the strike horizontal of the fault plane. Breakthroughs in new techniques are described in section 1, including detrital zircon geochronology, cosmogenic nuclide dating, magnetostratigraphy, 3d seismic, and basin modelling. Strikeslip basin its configuration and sedimentary facies. Petroleum prospectivity of the strike slip fault bounded. The third interpretation is a combination of the first and second interpretations, and theories that a sinistral strikeslip fault was created during the laramide orogeny, basin and range normal faults and relay ramps developed next and a late pulse of strikeslip movement during the basin and range reactivated the laramide sinistral strike. This work uses subsurface data wells, seismic and gravimetric and surface data digital terrain model and geological mapping to investigate the relations between sedimentary infill and tectonic activity.
The structural intensity and complexity of this area can be attributed in part to the proximity of ne and nnetrending, preexisting basement faults bounding. The hazar basin is a 25 kmlong, 7 kmwide and 216mdeep depression located on the central section of the east anatolian fault zone easternturkey and predominantly overlain by lakehazar. Incorporating strikeslip faulting in bpsm basin and. Intraplate strikeslip reactivation of the sinnyeong fault in the cretaceous gyeongsang basin, korea, due to the concentration of later compressional stress youngbeom cheon, cheol woo song, son kap lee, jongsun kim, moon son department of geological sciences, pusan. This view could be important when considering hydrocarbon risks and prospectivity in a basin. Sedimentary basins range in size from as small as hundreds of meters to large parts of ocean. In recent years a significant body of new geological and geophysical data on strikeslip basins had been acquired, and there had been significant progress in understanding the mechanisms by which basins form and deform in strikeslip settings. Intraplate strikeslip reactivation of the sinnyeong fault.
Evidence of magmatic activities in the megachad basin is. The anadarko basin is structurally deepest along its southern margin and is fault separated to the south and southeast from cambrian igneous rocks exposed in the wichita mountains ham and others, 1964. Strikeslip fault, left lateral concealed, queried thrust fault, 1st generation certain thrust fault, 1st generation approximately located. The central block 2 of junggar basin is located in the center of the basin, whose jurassic fractures were considered to be characterized by reverse fault. Pdf various types of sedimentary basins that contain a great variety of sedimentary successions and structural attributes form along strikeslip.
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