Write the name for each feature using the choices listed below.
Identification of features on the ocean floor quizlet.
Narrow flat abyssal.
The mountain ranges of the mid ocean ridge trenches and underwater volcanoes are all formed by interactions of earth s plates.
Label the ocean basins a.
Early civilizations believed the ocean floor to be a smooth bowl devoid of features or life.
In general the cross sections of deep sea trenches are v shaped with steeper landward sides.
Navigators of ships and submarines are interested in avoiding dangers or impediments to their progress.
Scientific research submersibles have explored the ocean s deepest trenches but most are designed to reach only the ocean floor.
Identification of features on the ocean floor different oceanic features are numbered 1 through 10 adjacent to the figure below.
The following features are shown at example depths to scale though each feature has a considerable range at which it may occur.
The ocean floor is called the abyssal plain.
All answers are yes but responses may lead to class discussion.
Features of the ocean include the continental shelf slope and rise.
Continental shelf 300 feet continental slope 300 10 000 feet abyssal plain 10 000 feet abyssal hill 3 000 feet up from the abyssal plain seamount 6 000 feet.
On the sea floor made up of rocks minerals sediments and sand a steep cliff like slope increases water pressure and is where the continent connects with the ocean floor.
Submerged volcanic mountains on the ocean floor volcanic origin at least 1 000m high continental rise base of the continental slope made of large piles of sediment area located between the continental slope and the deep ocean basin abyssal plain.
At the edge of the shelf the ocean floor drops off in a steep incline called the continental slope.
Note that the lettered spaces below do not correspond exactly to the numbered descriptions in the textbook.
Review the i can statements once.
Beyond this slope is the abyssal plain a smooth and nearly flat area of the ocean floor.
Information on the student worksheets depending on time available for the exercise.
Typical slopes range between 4 and 16 although slopes as steep as 45 have been measured in the tonga trench of the equatorial south pacific.
Mean water level observed for a given duration day month year.
Mid ocean ridge group of underwater mountain chains criss crossing the oceans.
This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level.
However the ocean floor is not flat.
The ocean floor has an s shape basin that extends north to.
Deep sea trenches and their approaches are striking features on the ocean floor.
It has a wide variety of geological features e g fig.
Today much of our exploration of the oceans happens using sonar and remotely operated vehicles.
