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Question 1

Small settlement covered in active volcano or intrusion of molten rock less than 200 (650 feet high), thought to be associated with seafloor spreading. punctuate the otherwise flat

Answer 1

Abyssal hill

Question 2

In arc shaped depression in the deep ocean floor with very steep sides and a flat sediment filled bottom coinciding with a subduction. Most occur in the Pacific

Answer 2

Trench

Question 3

A deep V-shaped valley running roughly perpendicular to the shoreline in cutting across the edge of the continental shelf and slope

Answer 3

Submarine Canyon

Question 4

A circular and elliptical projection from the seafloor; more than 1 km (0.6 miles in height), with a relatively steep slope of 20° to 25°

Answer 4

Seamount

Question 5

Young see bed at the active spreading center of an ocean, often unmasked by sediment, bulging above the abyssal plain. The boundary between diverging plates, often called a mid blank blank, though less than 60% of the length exists at mid ocean

Answer 5

Oceanic ridge

Question 6

Curving chain of volcanic islands and seamounts almost always found paralleling the concave edge of a trench

Answer 6

Island Arc

Question 7

A spring of hot, mineral and gas rich sea water found on some oceanic ridges in zones of active seafloor spreading

Answer 7

Hydrothermal vent

Question 8

Area of the irregular, seismically in active topography marking the position of a once active transform

Answer 8

Fracture zone

Question 9

The sloping transition between the granite of the content and then end up at salt of the Sea bed; the true edge of a continent

Answer 9

Continental Slope

Question 10

The wedge of sediment, forming gentle transition from the outer lower edge of continental slope to the abyssal plain; usually associated with passive margins

Answer 10

Continental rise

Question 11

Deep diving submersible designed like a blimp, which uses gasoline for buoyancy and can reach the bottom of the deepest ocean trenches

Answer 11

Bathymetry

Question 12

Flat, cold, sediment covered ocean floor between the continental rise and the oceanic ridge at a death of 3700 to 5500 meters (12,000 to 18,000). They are more extensive in the Atlantic in Indian oceans then in the Pacific

Answer 12

Abyssal plain

Question 13

Underwater avalanche of abrasive sediments thought responsible for the deep sculpturing of submarine canyons and a means of transport for sediments accumulating on abyssal plains

Answer 13

Turbidity Current

Question 14

A plane along which rock masses slide or horizontally past one another

Answer 14

Transform fault

Question 15

The abrupt increase in slope at the junction between continental shelf and continental slope

Answer 15

Shelf Break

Question 16

The continental margin near an area of lithospheric plate divergence; also called Atlantic type margin

Answer 16

Passive margin

Question 17

Deep ocean floor made of Basaltic , compare continental margin

Answer 17

Ocean basin

Question 18

One of several periods (lasting several thousands of years each) of low temperature. During the last million years. Glaciers and polar ice were deceived from ocean water, Lowering sea level at least 100 meters

Answer 18

Ice age

Question 19

A flat topped submerged in active volcano

Answer 19

Guyot

Question 20

Point on Earths surface directly above the focus of an earthquake

Answer 20

Epicenter

Question 21

Gradually sloping submerged extension of a continent, composed of Grannite rock overlain by sediments; has features similar to the edge of the nearby continent

Answer 21

Continental shelf

Question 22

The continental margin near an area of lithospheric plate convergence; also called pacific type margin

Answer 22

Active margin

Question 23

The sub merged outer edge of a continent, made of Grannite crust; includes the continental shelf and continental slope. Compare ocean basin

Answer 23

Continental margin