Test Bank For Essentials of Oceanography 7th Edition by Toms
Garrison Copyright 2026.
Terrigenous sediments
Sediments that originated on land
Biogenous sediments
Sediments that are biological in origin.
Hydrogenous sediments
Sediments that crystallize directly from ocean water through chemical reactions.
Oil and Natural Gas
Two major energy sources from the ocean floor.
Gas hydrates
Chemical structures formed from methane and water.
Formation of gas hydrates
Gas hydrates form when methane is produced by bacteria breaking down organic matter in
sediment.
Effect of bringing gas hydrates to the surface
,They evaporate when brought to the surface.
Continental Margin
The zone of the ocean floor that separates the thin oceanic crust from thick continental crust.
Continental shelf
The submerged part of the continental margin that is relatively shallow.
Submarine canyons
Deep, steep-sided valleys cut into the continental shelf and slope.
Continental slope
The steep slope between the continental shelf and the deep ocean floor.
Continental rise
The gently sloping area at the base of the continental slope.
Ocean trench
A deep, narrow depression in the ocean floor.
Ocean basin
The broad, flat area of the ocean floor.
, Ocean crust
The outer layer of the Earth's crust that lies beneath the ocean.
Subduction Zone
An area where one tectonic plate moves under another.
Abyssal plain
A flat, deep area of the ocean floor.
Mid-ocean Ridge
An underwater mountain range formed by plate tectonics.
Magma
Molten rock beneath the Earth's surface.
Evaporite
Material left behind when seawater evaporates.
Calcareous ooze
Ocean sediment made up of the calcium carbonate shells of marine organisms.
Garrison Copyright 2026.
Terrigenous sediments
Sediments that originated on land
Biogenous sediments
Sediments that are biological in origin.
Hydrogenous sediments
Sediments that crystallize directly from ocean water through chemical reactions.
Oil and Natural Gas
Two major energy sources from the ocean floor.
Gas hydrates
Chemical structures formed from methane and water.
Formation of gas hydrates
Gas hydrates form when methane is produced by bacteria breaking down organic matter in
sediment.
Effect of bringing gas hydrates to the surface
,They evaporate when brought to the surface.
Continental Margin
The zone of the ocean floor that separates the thin oceanic crust from thick continental crust.
Continental shelf
The submerged part of the continental margin that is relatively shallow.
Submarine canyons
Deep, steep-sided valleys cut into the continental shelf and slope.
Continental slope
The steep slope between the continental shelf and the deep ocean floor.
Continental rise
The gently sloping area at the base of the continental slope.
Ocean trench
A deep, narrow depression in the ocean floor.
Ocean basin
The broad, flat area of the ocean floor.
, Ocean crust
The outer layer of the Earth's crust that lies beneath the ocean.
Subduction Zone
An area where one tectonic plate moves under another.
Abyssal plain
A flat, deep area of the ocean floor.
Mid-ocean Ridge
An underwater mountain range formed by plate tectonics.
Magma
Molten rock beneath the Earth's surface.
Evaporite
Material left behind when seawater evaporates.
Calcareous ooze
Ocean sediment made up of the calcium carbonate shells of marine organisms.
