Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
Subduction zone
|
the location were one crust goes under another.
|
|
Rift Valley
|
A low lying area that lays between mountaiun ranges or highlands that occur because of fault movements.
|
|
Oceanic Ridge
|
Underwater mountain ranges
|
|
Convection curents
|
is the movement of warmer, less dense magma below denser cold magma.
|
|
Convection
|
is the movementof heat from the rising of warm, less dense molecules through denser cold ones.
|
|
Crust
|
is the outermost area of the earth.
|
|
Mantle
|
is made up of liquidy rock where convection currents occur.
|
|
Core
|
is the inner most layer of the earth that is made of iron
|
|
Pangaea
|
the name of the original land mass on earth, it was the super continent.
|
|
Asthenosphere
|
liquid layer of the earth above the mantle.
|
|
Lithosphere
|
the oceanic and continental crusts float upon this layer of solid rock that flows.
|
|
Convergent boundary
|
2 plates moving toward eachother.
|
|
Divergent boundary
|
2 plates sliding or grinding past eachother.
|
|
trench
|
long steep valley on the ocean floor.
|
|
fault
|
a long the boundaries of 2 plate boundaries
|
|
Island chains
|
several islands lovated next to eachother.
|
|
wich way does divergent go?
|
<--- --->
|
|
wich way does convergent go?
|
---> <---
|
|
wich way does transform go?
|
up and down.
|
|
who was responsible for the seafloor spreading theory?
|
Harry Hess
|
|
What was the seafloor spreading theory?
|
It started that through divergent boundary process the amount of ocean floor is increasing. Proven by examining magnetism of the ocean floor.
|
|
List different types of evidence used to prove the continental drift theory.
|
-Mesosaurus fossils on 2 different continents.
-Appalachian Mountains are of similar age & structure as mountains in greenland & northern europe. -Evidence of glaciers in south africa & south america, which are now tropical. |
|
what are 2 locations of Each of the tree convergent boundary types.
|
oceanic-oceanic--> Hawaii, Galapagos, Aleutian
oceanic-continental--> Andes, Aleution Continental-continental--> Himalayans, Alps |
|
What are 2 places on earth with a divergent plate boundary?
|
Mid-Atlantic Ridge, Red Sea
|
|
What is the most prominent place on earth with a transform boundary?
|
San Andreas Fault
|