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This regime dominated by normal dip-slip faults. A vertical σ₃ is classified as a thrust regime. These are dominated by reverse dip-slip faults with σ₁ once again parallel to motion. The third regime is characterized by a vertical σ₂ and dominated by both left lateral and right lateral strike-slip faults. [2] Observed normal fault dip ...
Vertical cross-sectional view, along a plane perpendicular to the fault plane, illustrating normal and reverse dip-slip faults. Dip-slip faults can be either normal ("extensional") or reverse. The terminology of "normal" and "reverse" comes from coal mining in England, where normal faults are the most common. [19]
It is unlikely that a deforming body will experience 'pure' extension or 'pure' strike-slip. Transtensional shear zones are characterized by the co-existence of different structures, related to both strike-slip shear and extension. End member structures include pure strike-slip faults and purely extensional ("normal") dip-slip faults. Faults ...
An idealized strike-slip fault runs in a straight line with a vertical dip and has only horizontal motion, thus there is no change in topography due to motion of the fault. In reality, as strike-slip faults become large and developed, their behavior changes and becomes more complex. A long strike-slip fault follows a staircase-like trajectory ...
The features are created by normal faulting and rifting caused by crustal extension. [1] Horst and graben are formed when normal faults of opposite dip occur in pairs with parallel strike, and are always formed together. Each feature can range in size from a few centimeters up to tens of kilometers, and the vertical displacement can be up to ...
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Also called a thrust fault. Dip-slip faults can be sub-classified into the types "reverse" and "normal". A reverse fault occurs when the crust is compressed such that the hanging wall moves upward relative to the footwall.
Coulomb stress transfer is a seismic-related geological process of stress changes to surrounding material caused by local discrete deformation events. [1] Using mapped displacements of the Earth's surface during earthquakes, the computed Coulomb stress changes suggest that the stress relieved during an earthquake not only dissipates but can also move up and down fault segments, concentrating ...