What Are The Parts Of The Ocean Floor

In the center of the highest part of the mid ocean ridge is a nawrrow trench called a rift. The hadalpelagic zone lies between 19 686 feet to 36 100 feet. Bathymetry the shape of the ocean floor is largely a result of a process called plate tectonics the outer rocky layer of the earth includes about a dozen large sections called tectonic plates that are arranged like a spherical jig saw puzzle floating on top of the earth s hot flowing mantle.

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In other parts of the ocean floor you ll find king crabs and flounders.

What are the parts of the ocean floor.

Deep ocean drilling and radiometric dating in the late 1960s gave an accurate stratigraphy and precise date of the ocean floor. The deepest parts of the ocean floor are caused by plate tectonic subduction and occur where the sea floor sinks back into the mantle in a subduction zone. In still other parts of the ocean you ll find mussels and clams with pearls inside them. In general the ocean floor can be divided into four major divisions.

These underwater volcanic mountains are known as the mid ocean ridge. Plate tectonics and the ocean floor. The hadalpelagic zone is also called the trenches and is found from the ocean basin and below. The trenches around the edges of the eastern pacific ocean are shallower than are those of the western pacific.

The depth depends on the trenches and valleys in the area. Of course some scientific research requires actually traveling to the bottom of the ocean to collect samples or directly observe the ocean floor but this is more expensive and can be dangerous. Start studying parts of the ocean floor. The mariana trench the world s deepest submarine de pression is more than 11 000m below sea level in some parts about 7 000m below the mean depth of the ocean floor.

From studying the oxygen isotopes of the shells of microfossils in these cores scientists were able to begin studying the earth s past climates in a study known as paleoclimatology. Japan s marina trench is the deepest part of the ocean ever to be explored by man and it sits at 35 797 feet. It is actually a part of the continent sloping. Continental shelf is the shallow portion of the ocean which lies close to the continental margin.

Learn vocabulary terms and more with flashcards games and other study tools. In the late 1950s the bathyscaphe deep boat trieste was the first manned vehicle to venture to the deepest parts of the ocean a region of the. On the bottom of the ocean there is a central ridge or mountain range that divides the ocean floor into two parts. Close to shore coral forests are.

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