Science vocab 1 Flashcards
What is the equilibrium between continental crust and the denser mantle below it?
Isostasy
What is the downward vertical motion of Earth’s surface called?
Subsidence
What is the upward vertical motion of Earth’s surface called?
uplift
what is squeezing stress called?
Compression
Stress that pulls something apart is what?
Tension
What are parallel forces that act in opposite directions?
Shear
What is a change in the shape of rock caused by stress called?
Strain
What is the opposite of uplift called?
subsidence
What are deep underwater troughs created by an oceanic plate subducting under another plate at a convergent plate boundary?
Ocean trenches
What is a curved line of volcanoes that forms parallel to a plate boundary called?
Volcanic Arc
Where blocks of crust slide horizontally past each other, the form what?
transform faults
An area of many fractured pieces of crust along a large fault is called what?
fault zone
What are made of layers of rocks that are folded?
folded mountains
What are parallel ridges that form where blocks of crust move up or down along faults?
fault block mountains
What is an extensive area of level or rolling land?
Plain
