what is fault
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Fault (geology) Fault (geology) In geology, a fault is a planar fracture or discontinuity in a volume of rock, across which there has been significant displacement as a result of rock-mass movement.
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Fault Lines: Facts About Cracks in the Earth The different styles of faulting can also combine in a single event, with one fault moving in both a vertical and strike-slip motion during an earthquake. [ Countdown: 13 Crazy Earthquake Facts ]. All faults are related to the movement of Earth's tectonic plates. The biggest faults mark the boundary between two plates. Seen from above, these appear as broad zones of deformation, with many faults braided together.
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- Fault —a fracture or zone of fractures in rock along which the two sides have been displaced relative to each other. Fault plane —The plane along which the break or shear of a fault occurs. It is a plane of differential movement, that can be vertical as in a strike slip fault or inclined like a subduction zone fault.
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Fault (geology) A fault plane is the plane that represents the fracture surface of a fault. A fault trace or fault line is a place where the fault can be seen or mapped on the surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault.
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- faulting - (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other; they built it right over a geological fault; he studied the faulting of the earth's crust geological fault, fracture, break, fault, shift. geology - a science that deals with the history of the earth as recorded in rocks
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Universe Today Space and astronomy news Along Faults. Earthquakes can also occur far from the edges of plates, along faults. Faults are cracks in the earth where sections of a plate (or two plates) are moving in different directions. Faults are caused by all that bumping and sliding the plates do.They are more common near the edges of the plates.long Plate Edges. Most earthquakes occur along the edge of the oceanic and continental plates. The earth's crust (the outer layer of the planet) is made up of several pieces, called plates. The plates under the oceans are called oceanic plates and the rest are continental plates.
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Fault A fault is defined as a crack or fracture in Earth's crust along which rock on one side has moved relative to rock on the other. (When no movement has occurred, the fracture is known as a joint). When a fault breaks the planet's surface, it may range in length from a few inches to thousands of miles.eologists divide the surface and the interior of Earth into layers. At the very center of the planet is the core. It begins at a depth of about 1,800 miles (2.900 kilometers) beneath the surface and extends to a depth of 3,960 miles (6,370 kilometers).
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default de·fault. n. 1. Failure to perform a task or fulfill an obligation, especially failure to meet a financial obligation: in default on a loan. 2. Law Failure of a party in a case to make a required court appearance. 3. The failure of one or more competitors or teams to participate in a contest: won the championship by default. 4.
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Fault (geology) A fault plane is the plane that represents the fracture surface of a fault. A fault trace or fault line is the intersection of a fault plane with the ground surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault. fault which has a component of dip-slip and a component of strike-slip is termed an oblique-slip fault. Nearly all faults will have some component of both dip-slip and strike-slip, so defining a fault as oblique requires both dip and strike components to be measurable and significant.
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"Geological Terms Beginning With ""F""" Fault Zone. An area of rock that has numerous fractures of similar trend and dip. Rocks usually do not fail with a clean break, instead they fail through the formation of numerous fractures along a zone of failure. As a result, many named faults are actually zones of fractured rock. The term also has a regulatory use.
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- If the main sense of movement on the fault plane is up (compressional; reverse) or down (extensional;normal), it is called a dip-slip fault. Where the main sense of slip is horizontal the fault is known as a strike-slip fault. Oblique-slip faults have both strike and dip slip.
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Reverse, Strike-Slip, Oblique, and Normal Faults The fault plane is where the action is. It is a flat surface that may be vertical or sloping. The line it makes on the Earth's surface is the fault trace. Where the fault plane is sloping, as with normal and reverse faults, the upper side is the hanging wall and the lower side is the footwall. When the fault plane is vertical, there is no hanging wall or footwall. Any fault plane can be completely described with two measurements: its strike and its dip.
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What is a fault and what are the different types? During an earthquake, the rock on one side of the fault suddenly slips with respect to the other. The fault surface can be horizontal or vertical or some arbitrary angle in between. Earth scientists use the angle of the fault with respect to the surface (known as the dip) and the direction of slipslip along the fault to classify faults. Faults which move along the direction of the dip plane are dip-slip faults and described as either normal or reverse (thrust), depending on their motion. Faults which move horizontally are known as strike-slip faults and are classified as either right-lateral or left-lateral.
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Fault (geology) A fault plane is the plane that represents the fracture surface of a fault. A fault trace or fault line is the intersection of a fault plane with the ground surface. A fault trace is also the line commonly plotted on geologic maps to represent a fault.ased on direction of slip, faults can be generally categorized as: 1  strike-slip, where the offset is predominately horizontal, parallel to the fault trace. 2  dip-slip, offset is predominately vertical and/or perpendicular to the fault trace. 3  oblique-slip, combining significant strike and dip slip.
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Fault (geology) A fault which has a component of dip-slip and a component of strike-slip is termed an oblique-slip fault. Nearly all faults have some component of both dip-slip and strike-slip, so defining a fault as oblique requires both dip and strike components to be measurable and significant.
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Fault Some of these fractures, called faults, lie beneath the surface of the crust. Other faults, however, have ruptured the surface, cracking the crust into various-sized blocks of rock. These blocks dip and rise along faults in response to pressure underground. One block may move up while the other moves down.
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Fault (geology) A thrust fault has the same sense of motion as a reverse fault, but with the dip of the fault plane at less than 45°. Thrust faults typically form ramps, flats and fault-bend (hanging wall and foot wall) folds.
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- A fault is a break in the rocks that make up the Earth’s crust, along which rocks on either side have moved past each other.
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fault 4 : responsibility for wrongdoing or failure the accident was the driver's fault. 5 : a fracture in the crust of a planet (such as the earth) or moon accompanied by a displacement of one side of the fracture with respect to the other usually in a direction parallel to the fracture Frequent earthquakes have occurred along the San Andreas Fault.
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San Andreas Fault Information The San Andreas fault's nick name is SAF. The San Andreas Fault is the most famous fault in the world. Its notoriety comes partly from the disastrous 1906 San Francisco earthquake, but rather more importantly because it passes through California, a highly-populated state that is frequently in the news. And with many research institutions dedicated to studying such an accessible fault, the SAF has become a household name.
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fault A fault is an error caused by ignorance, bad judgment or inattention. If you're a passenger, it might be your fault that your friend missed the exit, if you were supposed to be watching for it, not sleeping. Fault can mean blame — as a noun or verb. If you say, It's my fault, you accept the blame.
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Faults A fault is formed in the Earth's crust as a brittle response to stress. Generally, the movement of the tectonic plates provides the stress, and rocks at the surface break in response to this. Faults have no particular length scale. If you whack a hand-sample-sized piece of rock with a hammer, the cracks and breakages you make are faults.
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- Types and Effects of Faults. A. A fault is a break in the Earths crust where slabs of crust slip past each other. B. Faults usually occur along plate boundaries, where the forces of plate motion compress, pull, or shear the crust so much that the crust breaks. C. Types of Faults. 1. Strike-Slip Fault. a) found along transform plate boundaries.
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fault Transform faults are a special category of strike-slip faults in which the crack is actually part of a boundary between two enormous tectonic plates. This is the nature of the famous San Andreas Fault in California.