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Seismology and site effects
Published in Mark Aschheim, Enrique Hernández-Montes, Dimitrios Vamvatsikos, Design of Reinforced Concrete Buildings for Seismic Performance, 2019
Mark Aschheim, Enrique Hernández, Dimitrios Vamvatsikos
Faults are planar fractures or discontinuities where relative displacement or movement has occurred. Faults are classified based on the different types of movement that can appear (Figure 2.2). Strike-slip faults are characterized by relative horizontal displacements as the two segments appear to be sheared relative to each other. Normal and reverse faults display vertical movement whereby one segment is pulled or pushed, respectively, against the other along a sloping fault plane. Thrust faults are essentially reverse faults with a nearly horizontal fault plane.
Tectonics
Published in Aurèle Parriaux, Geology, 2018
Faults are discontinuities along which shearing has occurred. Fault displacement is defined by a vector in space that connects two points that were in contact before the movement: the slip (Fig. 12.20). Faults are classified into three types depending on the direction of the displacement with respect to the rupture surface: normal faults, reverse faults (including thrust faults and thrust nappes) and strike-slip faults. These three types are also distinguished by the shape and orientation of the ellipsoid of the principal stresses that caused the faults.
Tectonics
Published in Aurèle Parriaux, Geology, 2018
Faults are discontinuities along which shearing has occurred. Fault displacement is defined by the vector in space that connects two points that were in contact before the movement: the slip (Fig. 12.20). Faults are classified into three types depending on the direction of the displacement with respect to the rupture surface: normal faults, reverse faults (including thrust faults and thrust nappes), and strike-slip faults. These three types are also distinguished by the shape and orientation of the ellipsoid of the principal stresses that caused the faults.
Evaluation of organic matter in sakesar and patala formations in Southern and Northern potwar basin, Pakistan
Published in Petroleum Science and Technology, 2023
Physical and geographic locations of Potwar Basin are naturally complex. It is bounded from its northern side by Margalla thrust and from its south by Salt Range Thrust. Its eastern limit forms the Jhelum thrust. The Indus River more or less outline the western limit. Over all the in Potwar the structural trend is east-west & northeast- southwest (Gee, 1945; Gee, 1947; Kazmi and Abbasi, 2008; Kazmi & Jan 1997; Shah, 2009; Tahirkheli, 1979). Greater part of the area consists of large surface anticlines. In the region most of the subsurface structures consists of reverse and thrust faults. Most of the anticlinal bounded thrust faults are blind and which never emerged on surface. In western, south-western and eastern Potwar the tectonic styles are different.