Identification Of Features On The Ocean Floor Quizlet

At the edge of the shelf the ocean floor drops off in a steep incline called the continental slope.

Identification of features on the ocean floor quizlet.

Early civilizations believed the ocean floor to be a smooth bowl devoid of features or life. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. Review the i can statements once. 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.

Information on the student worksheets depending on time available for the exercise. Navigators of ships and submarines are interested in avoiding dangers or impediments to their progress. Mean water level observed for a given duration day month year. 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.

Scientific research submersibles have explored the ocean s deepest trenches but most are designed to reach only the ocean floor. All answers are yes but responses may lead to class discussion. It is used as a reference to define coastal features and calculate the elevation of topographical elements. Today much of our exploration of the oceans happens using sonar and remotely operated vehicles.

Label the ocean basins a. However the ocean floor is not flat. This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. Features of the ocean include the continental shelf slope and rise.

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. Narrow flat abyssal. In general the cross sections of deep sea trenches are v shaped with steeper landward sides. It is formed by an outpouring of magma.

The mountain ranges of the mid ocean ridge trenches and underwater volcanoes are all formed by interactions of earth s plates. Identification of features on the ocean floor different oceanic features are numbered 1 through 10 adjacent to the figure below. The ocean floor has an s shape basin that extends north to. It has a wide variety of geological features e g fig.

The ocean floor is called the abyssal plain. Note that the lettered spaces below do not correspond exactly to the numbered descriptions in the textbook. Write the name for each feature using the choices listed below. Beyond this slope is the abyssal plain a smooth and nearly flat area of the ocean floor.

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.