MetaGlossary.com: Shear Zone

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Keywords: Tabular, Planar, Fault, Undergone, Fractured

Related Terms: Breccia, Fault, Foliation, Joint, Magma, Melange, Metamorphic, Shift , Slide, Tectonic, Terrane, Unconformity, Vein, Volcano, Shield, Angular Unconformity, Ash Flow, Fold, Folding, Volcanic Bomb, Volcanic Cone, Structural Geology, Oceanic Crust, Ophiolite, Shearing, Lahar, Faulting, Blueschist, Continental Crust, Deformation, Thrust , Helictite, Fault Zone, Pyroclastic Flow, Volcanic Eruption, Rift Zone, Bomb , Fissure Eruption, Pyroclastic Surge, Magma Chamber, Regional Metamorphism, Geosyncline, Sedimentary Basin, Debris Avalanche, Nappe, Mylonite, Volcanic Arc, Disconformity, Eruption Cloud, Epithermal

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A region, narrow in comparison with its length, within which rocks have undergone intense deformation.

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fault zone, often associated with fluid movement and mineralisation

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an originally planar zone of rock that has been deformed or fractured by shearing motions. Shear zones often act as zones of fluid flow and therefore have associated hydrothermal alteration or mineralization.

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A tabular zone of rock that has been crushed by many parallel fractures, typical of a fault zone, due to shear strain.

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an area that has undergone intense deformation due to motion along a fault deep in the Earth's crust

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area where rocks have moved in earthquake related type activity and broken up the rock

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a tabular zone of rock which has been crushed and brecciated by parallel fractures due to "shearing" along a fault or zone of weakness. These can be mineralized with ore-forming solutions

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A fault in which movement has occurred ductilely.

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A planar zone of weakness, similar to a fault, but consisting of several parallel displacement zones, usually over a greater width than a single fault.

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A zone in which shearing has occurred on a large scale.

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