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Plate Tectonics.
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Three types of deformation resulting from subjecting rock to stress?
folds-bending of the rocks without breaking faults-fracture of rocks with displacement joints-fracture of rocks wihtout displacement joints affect the resistance of rocks and making it subscitible to weathering
When rocks break, they move along surfaces called?
Faults
Are faults caused by tension or compression?
yes tension pulls the rocks apart which produces expanding faultscompression pushes the rocks together which produces crushing faultsshear slides the rocks past each other which produces slipping faults
What stress causes rocks to pull apart?
The type of stress that causes rocks to pull apart is a tension stress. It is the major type of stress found in divergent plate boundaries.
What is the relative age relationship of faults to the rocks they cut?
Because the rocks have to be there first, all faults are younger than the rocks they end up cutting across. In regard to sedimentary rock layers, each layer is younger than the one below it.
Three types of deformation resulting from subjecting rock to stress?
folds-bending of the rocks without breaking faults-fracture of rocks with displacement joints-fracture of rocks wihtout displacement joints affect the resistance of rocks and making it subscitible to weathering
What are the reative age relationship of faults the rocks they cut?
Faults are always younger than the rocks they cut. They cannot be older that the rocks they are cutting, because the rocks would not be there.
The force that causes rocks to break as plates rub past each other is called what?
The force that causes rocks to break as plates rub past each other is called shear stress. This stress leads to the formation of faults and the subsequent release of energy in the form of earthquakes.
When rocks break, they move along surfaces called?
Faults
How do geologists collect data on friction along the sides of faults?
Geologists study the types of movement that occurs along faults. How rocks move along a fault depends on how much friction there is between the sides of the fault. Friction is the force that opposes the motion of one surface as it moves across another surface. Friction exists because surfaces are not perfectly smooth.Along parts of some faults, the rocks on both sides of the fault slide by each other without much sticking. Therefore stress does not build up, and big earthquakes are unlikely. Along many faults, the rocks lock together. In this case, stress increases until it is large enough to overcome the friction force. Stress builds up until an earthquake occurs.
What are normal faults caused by?
Normal faults are caused by tension in the movement of rocks
What is the name for tree roots forming out of rocks?
Biological weathering; Its a type of weathering which involves the breaking apart and disintegration of rocks throught the process of tree roots out growth or development by opening of cracks, joints and faults in rocks.
How is deformation related to metamorphic rock structures?
deformation is related to metamorphic rock structures because deformation can create metamorphic rocks through the stress it creates, and also certain structures in the foliations of metamorphic rocks can indicate stress and stress direction from deformation. Some structures caused by stress are folds and faults, and the resulting indicators in metamorphic rocks include things such as sigma structures, Z structures, mica fish, boudinage structures and many others.
What is created when rocks move apart?
Rocks moving apart can cause normal faults to form, as opposed to reverse and strike-slip faults.
What does a compression create after it pushes rocks together?
Reverse faults
Are faults caused by tension or compression?
yes tension pulls the rocks apart which produces expanding faultscompression pushes the rocks together which produces crushing faultsshear slides the rocks past each other which produces slipping faults
What are the three mayor faults?
Faults are surfaces along the earths crust in which rocks have been fractured and displaced. There are three types of faults: strike-slip, normal and reverse.
