Random Midterm Flashcards
0
Q
Calcareous oozes
A
Made from calcium carbonate and associated with mid ocean ridge and rise
1
Q
Siliceous oozes
A
Form from silica. More common in deep ocean floor
2
Q
Transform plates
A
2 plates slide past each other and crust is neither created or destroyed. Ex: San Andreas fault
3
Q
Abyssal plane
A
Deep seafloor covered by terrigenous sediments. It is flat because thick sediments smooth out the irregularities
4
Q
Why are the continents so old and the ocean crust so young?
A
Constant creation of new seafloor at divergent plate boundaries and there is constant subduction happening beneath the less dense continental crust. Continental crust doesn’t subduct the same way
