Mountain Ranges
The mid-atlantic ridge is an example of a mountain range formed where
at divergent boundaries
What type of stress changes a rocks shape but not its volume.
What would cause a mountain to be eroded near to sea level
isostasy
In structures called domes which rocks are found at the core?
the oldest
What type of mountains occur at continent to continent convergences?
folded mountains
What is formed by the process of orogenesis at divergent boundaries?
ocean mountain chains
What are the three types of stress that cause deformation of rocks?
shear, tensional, compressional
accretion
When their strength is exceeded rocks near the surface behave like what type of material?
glass
Continental volcanic arcs often form where
What is the Indian subcontinent which is a crustal block known as
terrane
tensional
What can intrude and deform sediment layers deposited at the edges of landmasses near convergent boundaries
magma
Large displacement of rock layers occurs occurs most in
thrust faults
An example of folded mountains can be seen where
the Alps in Europe
Most Mountain building occurs at what type of plate boundaries
convergent
Factors that influence the deformation of a rock
temperature, pressure, rock type, and time
If a force is unable to deform a rock right away but the force is maintained over a long period of time the rock may what?
flow
Movement of crust along a fault is normally
vertical in direction
According to the process of isostatic adjustment what types of crustal slabs float higher than thinner slabs
thicker
What forms when large blocks of crust are uplifted and and tilted along normal faults?
What type of deformation occurs under high pressures.
ductile
What type of faults create horizontal and parallel strikes to the fault surface
strike-slip faults
Rocks near Earths surface tend to exhibit what type of deformation?
brittle
A mountain will ultimately be eroded to sea level because of what?
Isostasy