Random Midterm

Question 0

Calcareous oozes

Answer 0

Made from calcium carbonate and associated with mid ocean ridge and rise

Question 1

Siliceous oozes

Answer 1

Form from silica. More common in deep ocean floor

Question 2

Transform plates

Answer 2

2 plates slide past each other and crust is neither created or destroyed. Ex: San Andreas fault

Question 3

Abyssal plane

Answer 3

Deep seafloor covered by terrigenous sediments. It is flat because thick sediments smooth out the irregularities

Question 4

Why are the continents so old and the ocean crust so young?

Answer 4

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