Quiz 7 Flashcards
Residual magnetic fields in the ocean floor on either side of the mid-oceanic ride confirm:
that the ocean floor is older the further it is from the mid-oceanic ridge.
Which is not a manifestation of a hot spot?
The Pacific coast of North America.
A magnitude 6 earthquake on the Richter scale has about how much more energy than an earthquake of magnitude 5?
About thirty times.
The coastal range of Oregon is an example of:
Terrane formation.
How can a satellite sense the contours of the ocean bottom from space?
By using radar to sense the height of the sea surface over submerged features.
Which of the following statements accurately describes a turbidity current?
A fast dense current of water that carries sediments offshore.
Which of the following statements accurately describes active continental margins?
They are areas of frequent earthquakes and volcanoes, where lithospheric plates are converging or are in collision.
The great heaps of unconsolidated sediment at the base of the continental slope are known as:
the continental rise.
The deepest part of the ocean is the:
Mariana Trench.
The oldest and best-known deep-diving submarine is the:
Alvin.
