Key definitions Flashcards
1
Q
Define primordial heat
A
The heat left over from the creation of the earth.
2
Q
Define radiogenic heat
A
The release of thermal energy as a result of radioactive decay of isotopes.
3
Q
Define slab pull
A
The force generated by the denser oceanic crust gravitationally orientating itself deeper into the mantle.
4
Q
Define ridge push
A
Where the new crust formed at constructive plate margins is less dense than the surrounding crust and is it rises to form oceanic ridges.
