Exam 13: The Ocean Floor

Manganese nodules are an example of ________ sediment.

The crests of mid-oceanic ridges ________.

Submarine canyons form the deepest parts of the ocean basins.

Manganese nodules are an example of ________.

________ continental margins occur where oceanic lithosphere is being subducted beneath the edge of a continent.

Which of the following is NOT true of deep ocean trenches?

Seafloor hot springs occur mainly in oceanic, abyssal plains.

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

The continental rise lies at the bottom of the continental slope.

A(n) ________ is a volcanic mountain, built up from the seafloor that never reached the sea surface.

Word Analysis. Examine the words and/or phrases for each question below and determine the relationship among the majority of words/phrases. Choose the option which does not fit the pattern.

A(n) ________ marks the site where old, oceanic lithosphere begins its descent into a subduction zone.

Compared to the Southern Hemisphere, a higher percentage of the Northern Hemisphere is water covered.

Matching. Match the ocean floor sediment with each phrase. -turbidite deposits

Which one of the following would you NOT associate with turbidity currents?

A(n) ________ is the vast, relatively deep, flat, sediment-covered portion of the deep-ocean basin.

Matching. Match the ocean floor sediment with each phrase. -abyssal plain clay

Turbidites and siliceous oozes are both biogenous sediments.

Matching. Match the ocean floor sediment with each phrase. -manganese nodule

The most extensive mountain range on Earth extends for about 65,000 kilometers on the ocean floor and is known as the ________.