Topography Of The Ocean Floor Definition

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. Ocean surface topography or sea surface topography also called ocean dynamic topography are highs and lows on the ocean surface similar to the hills and valleys of earth s land surface depicted on a topographic map these variations are expressed in terms of average sea surface height ssh relative to the earth s geoid. How does the ocean floor look like.

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Map showing the underwater topography of the ocean floor.

Topography of the ocean floor definition.

Plate tectonics and the ocean floor bathymetry the shape of the ocean floor is largely a result of a process called plate tectonics. Topography studies the elevation and location of landforms. Ocean floor topography refers to the different forms in which the ocean floor bottom can exist. The seabed also known as the seafloor sea floor or ocean floor is the bottom of the ocean no matter how deep.

The main purpose of measuring ocean surface topography is to understand. Explorations after 1950 revealed the true complex nature of the ocean floor. Topography of the ocean floor from the late 19th century when the norwegian explorer fridtjof nansen first discovered an ocean in the central arctic until the middle of the 20th century it was believed that the arctic ocean was a single large basin. As scientific knowledge has advanced the capability to envisage these remote sites has increased significantly.

Chapter 14 the ocean floor pdf free atlantic ocean floor topography lab diagram of the ocean floor seafloor topography grade 9 free printable tests and modelling the ocean floor lab. You may perceive the ocean floor to be flat and sandy like the beach but the truth is there are many different surfaces. Examples include mountains hills valleys lakes oceans rivers cities dams and roads. The ocean floor is literally the floor of the ocean.

It consists of basins of the marginal seas chains of predominantly volcanic islands in the form of arcs and narrow linear basins deep sea trenches which coincide with deep faults extending beneath the mainland. Whats people lookup in this blog. Not too many people have gone to the floor of the ocean as it requires special diving equipment. Like land terrain the ocean floor has ridges valleys plains and volcanoes.

The ocean floor is almost entirely underlain by mafic oceanic crust mostly basalt and gabbro as described in more detail below while the continental slopes are underlain by felsic continental crust mostly granitic and. It is the bottom of the ocean when you dive. The vertical exaggeration is approximately 200 times. Ocean floor topography worksheet answers.

Ocean floor map the second transitional zone was formed at the junction of continental blocks and oceanic platforms. Landforms landforms studied in topography can include anything that physically impacts the area. Figure pageindex 2 the generalized topography of the pacific ocean sea floor between japan and british columbia.