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A thrust block, also known as a thrust box, is a specialised form of thrust bearing used in ships, to resist the thrust of the propeller shaft and transmit it to the hull. Early thrust boxes [ edit ]
Red Canyon Fault Scarp. As mentioned above, a scarp is a formation caused by vertical offset between two fault blocks. Fault scarps can be seen as meter high faces abruptly jutting out of the surface, or a small face only a few centimeters high which will be smoothed out quickly by mass wasting and erosional forces.
An allochthon, or an allochthonous block, is a large block of rock which has been moved from its original site of formation, usually by low angle thrust faulting. [1] The term is derived from Greek: allo, meaning other, and chthon, meaning earth. For other possible mechanisms see obduction.
A thrust fault is a type of reverse fault that has a dip of 45 degrees or less. [1] [2] If the angle of the fault plane is lower (often less than 15 degrees from the horizontal [3]) and the displacement of the overlying block is large (often in the kilometer range) the fault is called an overthrust or overthrust fault. [4]
A horse, in geology, is any block of rock completely separated from the surrounding rock either by mineral veins or fault planes. In mining, a horse is a block of country rock entirely encased within a mineral lode. [1] In structural geology the term was first used to describe the thrust-bounded imbricates found within a thrust duplex. [2]
Tectonic Burial is the deformation of rocks caused by extreme pressure over millions of years. [1] It often causes temperature evolutions and deep burials. [2] Tectonic burial is usually the result of continental collisions or subduction in a region. [3]
In geology, a nappe or thrust sheet is a large sheetlike body of rock that has been moved more than 2 km (1.2 mi) [1] or 5 km (3.1 mi) [2] [3] above a thrust fault from its original position. Nappes form in compressional tectonic settings like continental collision zones or on the overriding plate in active subduction zones.
The Puente Hills Fault (also known as the Puente Hills Thrust Fault System) is an active geological fault that is located in the Los Angeles Basin in California. The thrust fault was discovered in 1999 and runs about 40 km (25 mi) in three discrete sections from the Puente Hills region in the southeast to just south of Griffith Park in the ...