Structural analysis of ernst tinaja canyon focusing on. Many of the geological terms having to do with strike slip deformation, basin formation, and sedimentation are used in a variety of ways by different authors e. This special publication is an outgrowth of a research symposium held at the 1984 joint meeting of sepm and aapg in san antonio, texas. Sedimentary basins range in size from as small as hundreds of meters to large parts of ocean. Strikeslip faults are vertical or nearly vertical fractures where the blocks have mostly moved horizontally.
Geophysical investigations of the smoke creek desert and. Large strikeslip earthquakes are not unprecedented in the diffuse boundary region separating the india and australia plates, southwest of the sumatra subduction zone. The evolution of this basin was profoundly influenced by strikeslip movement on the rinconada fault, which bisected the depocenter beginning circa 15 ma. Evidence for rightlateral strikeslip environment in the kutch basin of northwestern india from moment tensor inversion studies. This movement may occur rapidly, in the form of an earthquake or may occur slowly, in the form of creep. Purchase of an open document does not constitute license for republication in any form, nor does it allow web posting without prior written permission.
Chapter 7 the sediment routing system chapter 8 basin stratigraphy. It is a polygenetic strikeslip basin, which evolved at the same time as the tectonic. Faults allow the blocks to move relative to each other. Integrating strikeslip tectonism with threedimensional. Acrobat reader allows you to manipulate and rotate 3d pdf images.
At the very initiation of the strike slip fault a series of synclinal and anticlinal drag folds fig. Stress triggering of the great indian ocean strike. Most faults produce repeated displacements over geologic. Mike hydro basin is designed for analysing water sharing issues at international, national or local river basin scale. Characteristics of the tanlu strikeslip fault and its. Paleoseismological study of the late quaternary sliprate. Faults may range in length from a few millimeters to thousands of kilometers. For part d, you will estimate the orientation of the line of strike for a rock unit. 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. Slab pull by the southward subduction of the protoscs further triggered the oceanic opening of the east subbasin in the stepover segment between the zhongnanlile strikeslip fault and the strikeslip fault along the eurasianhuatung plate boundary in the latest eoceneearliest oligocene by 3334 ma fig.
Together with the adjacent sunda strait strikeslip basin, it probably formed in response to movement along the sumatra strikeslip fault fig. In the sunda strait and east and west of the honje horst structure, and north and south of west java malod et al 1996 are a series of moderately dipping half grabens which trend ns. Strikeslip deformation, basin formation, and sedimentation. Glossary strikeslip deformation, basin formation, and. Download the data as an excel woorkbook with all of the principal facts of the data used to generate the contours on the map 1.
The basin subsided by simple shear on lowangle, detached normal faults of the upper crust and by pure shear of the lower crust. The smoke creek desert is a large basin about 100 km 60 mi north of reno near the californianevada border, situated along the northernmost parts of the walker lane belt, a physiographic region defined by diverse topographic expression consisting of northweststriking topographic features and. The fault motion of a strikeslip fault is caused by shearing forces. 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. Rather than enforcing a rigorously uniform terminology in this book, we decided to set down our preferred definitions in a glossary, and. Zonation conservation rankings based on species distribution models for 198 land bird species under current 19712000 climate conditions. The san jacinto faultrelated strike slip displacements started on fault strands in the basin having a stepping geometry thus forming a pullapart graben, and finally cut through the graben in a. Isostatic gravity map with geology of the santa ana. 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. To address the influence of strikeslip motion on petroleum system development, we constructed a threedimensional 3d basin and petroleum system model that incorporates strikeslip. Mike hydro basin is a multipurpose, mapbased decision support tool for integrated water resources analysis, planning and management of river basins. If the block on the far side of the fault moves to the left, as shown in this animation, the fault is called leftlateral. The submeridional strike slip zone in the structure of the chukchi sea continental margin and the mechanism of opening of the canada oceanic basin.
Stratigraphic record of pliocenepleistocene basin evolution and deformation within the southern san andreas fault zone, mecca hills, california. Petroleum prospectivity of the strike slip fault bounded. In addition to developing a methodology for basin modeling with. Cenozoic tectonostratigraphic evolution of the strikeslip. However, during the latest cretaceous and early paleogene, the compression gave way to regional extension that formed northeasttrending grabens onshore, east of norton basin. 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. 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. Frequently, the basins are rhombic or sigmoidal in shape. For part e, you will determine the orientation of the strike of rock given the orientation of its dip.
The strikeslip movement is characterized by a distinctive strikeslip zone associated with the ne. Strikeslip basin its configuration and sedimentary facies. Biddledeformation and basin formation along strikeslip faults. In what tectonic setting would you expect to find horsts and grabens. The cretaceous strata that fill the san juan basin of northwestern new mexico and southwestern colorado were shortened in a generally ns to nnssw direction during the laramide orogeny. Its a comprehensive yet simple product for investigating options and making reliable decisions. Tectonic setting and characteristics of natural fractures. The basin subsided by simple shear on lowangle, detached normal faults of the upper crust and by pure shear of the lower crust 45, 87.
Under the control of the multistage strikeslip mechanism, the fangzheng fault depression is divided into six stages of strikeslip evolution, corresponding to the six different stages of the strikeslip control basin, the formation process of the asymmetric difference strikeslip fault basin is clarified, which provides a reference for the. Results will demonstrate the impact of strikeslip faulting on petroleum systems in transpressional settings. In measuring the horizontal or vertical separation, the throw of the fault is the vertical component of the separation and the heave of the fault is the horizontal. Normal reverse and thrust are all examples of faults a. Stepover basins transtensional or pullapart basins c. Potential role of strikeslip faults in opening up the. Strikeslip deformations in the west siberian basin and. A fault is a fracture or zone of fractures between two blocks of rock. The paruro formation has been previously interpreted as a strikeslip basin carlotto, 20, as have other structures in the peruvian andean plateau based on. The innovative seismic interpretation revealed the western branch of the tanlu strikeslip fault cut through the liaozhong depression of the subbasin and its eastern branch superimposed on the earlier extensional boundary fault of the subbasin. In recent years a significant body of new geological and geophysical data on strike slip basins had been acquired, and there had been significant progress in understanding the mechanisms by which basins form and deform in strike slip settings. Current zonation prioritization for california land birds.
The sichuan basin and surroundings are also crossed by other active strikeslip and thrust faults. This shortening was the result of compression of the strata between southward indentation of the san juan uplift at the north edge of the basin and northward to northeastward indentation of the. This interactive image can be viewed with adobe acrobat version 7. Geology and petroleum potential of the norton basin area.
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. Prospectivity of the strikeslip fault bounded pishin fold belt basin, pakistan authors. The basin formed originally as a sinistral strike slip basin 77, 86, but developed into a dextral strike slip basin after the change in the sense of fault displacement of the rrfz 87, 88. Slip is defined as the relative movement of geological features present on either side of a fault plane. Chapter 3 basins due to lithospheric stretching chapter 4 basins due to flexure chapter 5 effects of mantle dynamics chapter 6 basins associated with strikeslip deformation part 3 the sedimentary basinfill. Identification of the strikeslip faults in central.
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. Strikeslip fault, left lateral concealed, queried thrust fault, 1st generation certain thrust fault, 1st generation approximately located. Glossar y strike slip deformation, basin formation, and. Pdf evidence for rightlateral strikeslip environment. This basin has been described previously as a pullapart basin because of its rhombic shape and an apparent fault stepover between the main fault traces situated at the southwestern and northeastern ends of. Incorporating strikeslip faulting in bpsm basin and. 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. 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. 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.
The paruro formation has been previously interpreted as a strike slip basin carlotto, 20, as have other structures in the peruvian andean plateau based on. E, the sbf extends ew and forms an acute angle with the nennedirected maximum horizontal stress shmax in the region. Study on the relationship between multistage strikeslip. If norton basin formed as a pullapart basin along this fault, then the basin may be as old as middle late cretaceous.
664 397 908 1357 733 273 715 1058 694 1311 728 1452 384 207 48 220 15 991 722 329 855 804 790 456 765 876 1085 246 523 459 638 856 1187 972 853 205 271