Definition of overthrust. Meaning of overthrust. Synonyms of overthrust

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Definition of overthrust

overthrust
Fault Fault, n. 1. (Elec.) A defective point in an electric circuit due to a crossing of the parts of the conductor, or to contact with another conductor or the earth, or to a break in the circuit. 2. (Geol. & Mining) A dislocation caused by a slipping of rock masses along a plane of facture; also, the dislocated structure resulting from such slipping. Note: The surface along which the dislocated masses have moved is called the fault plane. When this plane is vertical, the fault is a vertical fault; when its inclination is such that the present relative position of the two masses could have been produced by the sliding down, along the fault plane, of the mass on its upper side, the fault is a normal, or gravity, fault. When the fault plane is so inclined that the mass on its upper side has moved up relatively, the fault is then called a reverse (or reversed), thrust, or overthrust, fault. If no vertical displacement has resulted, the fault is then called a horizontal fault. The linear extent of the dislocation measured on the fault plane and in the direction of movement is the displacement; the vertical displacement is the throw; the horizontal displacement is the heave. The direction of the line of intersection of the fault plane with a horizontal plane is the trend of the fault. A fault is a strike fault when its trend coincides approximately with the strike of associated strata (i.e., the line of intersection of the plane of the strata with a horizontal plane); it is a dip fault when its trend is at right angles to the strike; an oblique fault when its trend is oblique to the strike. Oblique faults and dip faults are sometimes called cross faults. A series of closely associated parallel faults are sometimes called step faults and sometimes distributive faults.

Meaning of overthrust from wikipedia

- is large (often in the kilometer range) the fault is called an overthrust or overthrust fault. Erosion can remove part of the overlying block, creating...
- The Lewis Overthrust is a geologic thrust fault structure of the Rocky Mountains found within the bordering national parks of Glacier in Montana, United...
- Overthrust is a four-piece death metal band from Ghanzi, Botswana. Overthrust was formed in 2008 in Ghanzi, Botswana. The band currently consists of vocalist...
- ; Beaudoin, Georges; Therrien, René; Burkhard, Martin (2002). "Glarus overthrust: A major pathway for the escape of fluids out of the Alpine orogen". Geology...
- the Rocky Mountain Front, a 200 miles (320 km) long overthrust fault, known as the Lewis Overthrust, which extends from central Montana into southern Alberta...
- Going-to-the-Sun Road accommodate visitors. The local mountains, formed by an overthrust, expose Paleozoic fossils including trilobites, mollusks, giant ferns...
- extreme southern Alberta, Canada. It was formed as a result of the Lewis Overthrust, a geologic thrust fault involving the overlying of younger Cretaceous...
- of continental crust is caught in a subduction zone with resulting overthrusting of oceanic mafic and ultramafic rocks from the mantle onto the continental...
- (Late Cretaceous) time. It crops out to the east of the Rocky Mountain Overthrust Belt, and the western portion (about 600 metres or 2,000 feet thick) of...
- volcanic rocks and ultramafic rocks from the Earth's upper mantle that was overthrust onto the continental crust. This ophiolite provides insight into the dynamics...