Plate Boundaries
What do continents and oceans rest on?
Large, moving plates.
How does an earthquake happen?
Plates move, Plates catch, Plates jolt, and waves spread.
What is a fault?
A fault is a break in the crust where rocks move.
What are the three types of Stress
Tensional, Compressional, and Shearing stress
A______is the point where one tectonic plate meets another.
Plate Boundary
Shallow focus is within___km of the surface
70
What are the three types of faults
Normal, Reverse, and strike-slip fault
What is the process of mountain formation
What are the three types of plate boundaries?
Convergent, Divergent, and Transform
Intermediate Focus happens within_______km deep.
70-300
Normal faults make ridges called?
Horsts
Folds that arch up are?
Anticlines
New oceanic crust forms at an___________as older crust is pushed away
Ocean Ridge
Deep focus happens deeper than_____km
300
A________is a reverse fault with a slope of 45 degrees or less.
Thrust fall
Where do most mountain ranges found along?
The edges of tectonic plates
What mountains are slowly rising because the Nazca Plate is sinking under South America and what is this process called?
The Andes Mountains and this is called subduction.
Deep focus earthquakes mostly happen around the?
Pacific Plate
A thrust fall helped build the?
Andes
What are the four types of mountains
Folded, Fault-block, Volcanic, and Plateau mountains.