Ocean Basin Floor Diagram

Basalt the once molten rock that makes up most new oceanic crust is a fairly magnetic substance and scientists began using magnetometers to measure the magnetism of the ocean floor in the 1950s what they discovered was that the magnetism of the ocean floor around.

Ocean basin floor diagram. It is made up of low hills and flat plains. Seamounts are generally formed on the ocean basin. It shares the structure and composition of the adjacent continent. 1 continental margin 2 abyssal plain and 3 mid atlantic ridge.

The sea floor can be subdivided into three major features. At depths of over 10 000 feet and covering 70 of the ocean floor abyssal plains are the largest habitat on earth. Continuing your journey across the ocean basin you would descend the steep continental slope to the abyssal plain. Calculate the rate of seafloor spreading in different ocean basins based on magnetic polarity reversals.

The ocean floor objectives in this activity students will interpret diagrams of seafloor sections with respect to paleomagnetism. The ocean sites you would see while going to the bottom of the ocean. O have students complete a partially completed chart that lists the key characteristics of the ocean floor. The sediments that make up abyssal plains are carried there by turbidity currents or are deposited as suspended sediment settles out.

Ocean basin the ocean basin is located on either side of the mid ocean ridge. Abyssal plain the flat area of the ocean basin. Jan 8 2016 explore ladonna johnson shabazz s board ocean floor project on pinterest. Students may think that the rocks on the.

Key ideas the seafloor has two distinct regions. The diagram above is a drawing of the bottom profile of the north atlantic ocean basin from the u s. The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century. The deep ocean floor differs from the continental margin in tectonic origin history and.

Sunlight does not penetrate to the sea floor making these deep dark ecosystems less productive than those along. Ocean basin floor 14 2 ocean floor features abyssal plains an abyssal plain is a very level area of the deep ocean floor usually lying at the foot of the continental rise. Other o give students an unlabeled ocean floor diagram and have them label all characteristic areas. Coast to europe showing the major features of the ocean floor.

The crust overlies the solidified and uppermost layer of the mantle the crust and the solid mantle layer together constitute oceanic lithosphere. Continental margins and deep ocean basins the continental margin is the relatively shallow ocean floor near shore. Color and label your own ocean floor diagram. Oceanic crust is the uppermost layer of the oceanic portion of a tectonic plate it is composed of the upper oceanic crust with pillow lavas and a dike complex and the lower oceanic crust composed of troctolite gabbro and ultramafic cumulates.