Admin What are the characteristics of a fault?
Faults may range in length from a few millimeters to thousands of kilometers. Most faults produce repeated displacements over geologic time. 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.
Which type of faults are called strike slip faults?
Faults which move horizontally are known as strike-slip faults and are classified as either right-lateral or left-lateral . Faults which show both dip-slip and strike-slip motion are known as oblique-slip faults.
What is an example of a right lateral fault?
The San Andreas Fault is an example of a right lateral fault.
What type of faulting occurs in response to extension?
This type of faulting occurs in response to extension and is often observed in the Western United States Basin and Range Province and along oceanic ridge systems. thrust fault – a dip-slip fault in which the upper block, above the fault plane, moves up and over the lower block.
Where are the faults that cut across the coal field?
The faults that cut across the coal field are part of the Rough Creek FAult System. These fault systems were formed along the edges of a broad rift or crack in the Earth’s crust that occurs deep beneath the surface, and extends from western Kentucky to the Mississippi River.
How are surface traces of faults shown on the geologic map?
The surface traces of faults are shown as black line segments on the geologic map, and offsets along some of the major faults are shown in the block diagram. Faults represent breaks in the Earth’s crust. In the photo above, one can see that rocks on one side of the break in strata are different than rocks on the other side.
How do scientists classify faults in an earthquake?
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 slip along the fault to classify faults.