Unit 3 - Geological Oceanography

Which is NOT a Horizontal ocean zone?

What happens to the crust at subduction zones?

What evidence supports the theory of continental drift?

Type of reef formed when an island sinks below sea level or sea level rises:

What is the difference between a submarine canyon and a trench?

What ocean zone is found below the ocean bottom in trenches?

Single underwater flat mountain

Super continent, included present day S. America, India, Madagascar, Australia and Antarctica.

What happens to the islands formed by hotspots as tectonic plates move?

In the 1960's this man discovered and theorized convection.

Which is NOT a bathygraphic feature?

This zone is referred to as the bottom of the ocean:

_______ are a continuous series of underwater mountains.

Forms a volcano in the middle of a tectonic plate.

What is likely to occur at plate boundaries?

This section of the continental margin is a steep drop after the continental shelf:

The ocean bottom is divided into two regions the Continental margin and the ________ _________?

What plate boundary scrapes together, and creates faults and cliffs?

This type of reef is formed when the island begins to submerge under sea level, not fully.

The huge ocean surrounding Pangea was called:

This ocean formed when Gondwanaland broke apart.

What zone closest to shore, covered during high tide?

What is a deep cut in the continental margin?

What primarily contributes to the density of oceanic plates?

These ocean floor features are single pointed mountains

Which is NOT a vertical ocean zone?

This happens when divergent plates move apart:

What type of crust is generally thicker?

Which geological feature is commonly formed at convergent boundaries?

This is part of the lower mantle, and has a viscous feel (sticky):

Who suggested the theory of Laurasia and Pangea?

The plate boundary where 2 ocean plated move towards one another, and one is pushed below:

Large expanse of flat ocean bottom; like a desert underwater.

The top of the continental margin is what?

What is the huge ocean surrounding Pangea?

Force that makes magma in the Earth's mantle move, due to heating and cooling is what?

This section of the pelagic zone has no sunlight.