Geological Features Of The Ocean Floor

The ocean floor is continually being formed and destroyed.

Geological features of the ocean floor.

Siliceous oozes from silica shells calcareous oozes from calcite shells and red clays from windblown sand and micrometeorites. The rocks and sediments particles of sand gravel and silt that lie beneath the oceans contain a record book of earth s past. Compare and contrast the geological features of the continents and the ocean floor. Many ocean floor features are a result of the interactions that occur at the edges of these plates.

Other significant features of the ocean floor include aseismic ridges abyssal hills and seamounts and guyots. When the fissure opens pressure is reduced on the super heated mantle material below. Marine geology is the study of the solid rock and basins that contain the oceans. Mid ocean ridge group of underwater mountain chains criss crossing the oceans.

The shifting plates may collide converge move away diverge or slide past transform each other. Divergent plate boundary oceanic when a divergent boundary occurs beneath oceanic lithosphere the rising convection current below lifts the lithosphere producing a mid ocean ridge. This feature is thought to be part of the eurasian continental crust that rifted from the barents kara sea margin and subsided in early tertiary time about 64 to 56 million years ago. As plates converge one plate may move under the other causing earthquakes forming volcanoes or creating deep ocean trenches.

It is used as a reference to define coastal features and calculate the elevation of topographical elements. Geology of the ocean floor geology is the study of the solid earth and its history. The bottom of the ocean is flat because of sediments constantly building up there at an even rate. It is formed by an outpouring of magma.

The ocean floor is called the abyssal plain. Mean water level observed for a given duration day month year. A number of major features of the basins depart from this average for example the mountainous ocean ridges deep sea trenches and jagged linear fracture zones. View essay ocean floor pdf from sci 101 at georgia virtual school.

Features rising up from the ocean floor include seamounts volcanic islands and the mid oceanic ridges and rises. The ocean floor covers more than 70 percent of the planet s surface. However the lowest point in the world ocean is much deeper than the highest point on land. Life on the ocean floor is sparse.

Like dry land the ocean floor has various features including flat plains sharp mountains and rugged canyons fig. Extensional forces stretch the lithosphere and produce a deep fissure. These sediments fall into three types.