Rocks Flashcards
What is a sedimentary rock and how are the formed?? ๐ฅ
Formed from particles of sand and other types of rocks
What is an igneous rock and how are the formed
Formed from a mantle when a volcano erupts lava flows and cools ๐
How are convection currents foemed
Heat from the core and the mantle itself causes convection currents
Whatโs a fossil
A fossil is any trace of an organization that has been preserved in a rock
Whatโs a mid ridge
A mid ridge is a undersea mountain chain that is a part of a long system of mountains
Sea floor spreading
Sea floor spreads apart a long both sides of a mid ocean ridge
Two plates carrying oceanic crust collide
Crash head on creating ocean ridges
The lithosphere is broken into separate sections called
FAULTS
3 types of boundaries
Spreading
Cooling
Sliding
When 2 plates collide it is called a
Colliding boundary
P waves
Spread in crust stretching rock
S waves
Move slow
3 types of stress
Tension
Compression
Sharing
Reverse fault
Crust is pushed together causing faults to form
Strike slip
Move past