Ocean Basin Floor Diagram
O draw a diagram of the ocean floor and label the parts.
Ocean basin floor diagram. Geologically an oceanic basin may be actively changing size or may be relatively tectonically inactive. The magnetism of mid ocean ridges helped scientists first identify the process of seafloor spreading in the early 20th century. Ocean basin any of several vast submarine regions that collectively cover nearly three quarters of earths surface. Ocean floor pulled apart form a line of underwater mountains.
Ocean basins also serve as repositories for the skeletons of carbonate and silica secreting organisms such as coral reefs diatoms radiolarians and foraminifera. Calculate the rate of seafloor spreading in different ocean basins based on magnetic polarity reversals. Continental margin underwater extension of the continent. O have students complete a partially completed chart that lists the key characteristics of the ocean floor.
Together they contain the overwhelming majority of all water on the planet and have an average depth of almost 4 km about 25 miles. 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. Unsubscribe from sean fisherrohde. Lincoln learning solutions 77616 views.
Great pacific garbage patch. Students may think that the rocks on the. Other o give students an unlabeled oceanfloor diagram and have them label all characteristic areas. The ocean floor objectives in this activity students will interpret diagrams of seafloor sections with respect to paleomagnetism.
Using the distance scale shown with the ocean floor diagrams determine which ocean basin has spread the greatest distance during the last 2 million years. Ocean floor part of the earths surface beneath the seas and the oceans. Lima discusses the difference between continental and oceanic crust types of tectonic plates and discusses features of the ocean floor associated with continental margin shelf slope rise. Ocean floor features duration.
Refer to the distance scale. Its topography is highly variable. Continental shelf section of the continental margin extending from the coast of the continent to the continental rise. Measure the distance that different ocean basins have opened.
Driftnet fishing is declining fish stocks and contributing to international disputes. A number of major features of the basins depart. Notice that the left side of the south atlantic basin has spread approximately 39 kilometers from the center of the ridge crest in 2 million years. Current issues of the pacific ocean basin.
Oil pollution in philippine sea and south china sea. Current issues of the atlantic ocean basin.
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