13: origin and evolution of ocean floor

Question 1

the measurement of ocean depths and charting of the ocean floor is called

Answer 1

bathymetry

Question 2

transition zones between continental and oceanic crust

Answer 2

continental margins

Question 3

the deep ocean basin makes up _% of earth’s surface area

Answer 3

30%

Question 4

the longest topographic feature on earth is the

Answer 4

oceanic ridge system

Question 5

continental routing may be initiated by

Answer 5

mantle plumes

Question 6

the assembly and breakup of supercontinents is called the

Answer 6

supercontinent cycle

Question 7

when continents rift apart, what forms?

Answer 7

new ocean basins

Question 8

the process where lithosphere is too buoyant to subduct spontaneously but is forced beneath the overriding plate

Answer 8

forced subduction