Activity 2 Magnetic Reversals And Sea Floor Striping Lab

Magnetic reversals and sea floor striping f. Assuming the distance to the farthest isochron is 300 km the spreading rate of the ridge was. Following up the activity.

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Physical Geology Interactive The Lab Plate Tectonics I Exercises Activity2

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Activity 2 magnetic reversals and sea floor striping lab.

The motion of the earth s molten outer core produces a magnetic field that is characterized by force lines emanating from near the. The patterns reflect the creation and spreading of oceanic crust along the mid oceanic ridges. Displaying top 8 worksheets found for activity seafloor spreading. Label the age of each isochron solid line at the bottom of the right hand side of the map using the information recorded on your ocean floor map.

Study maps of magnetic anomalies as measured over the oceanic ridges and look for the symmetrical patterns. Basalt forming at the ridge crest picks up the existing magnetic polarity. These surveys revealed a series of invisible magnetic stripes of normal and reversed polarity in the sea floor like that shown in the figure below. Plates i activity 2.

These two things were the magnetic striping on the ocean floor and the age of seafloor rocks. 300 km spreading rate. Magnetic reversals and sea floor striping created date. Midocean ridges and oceanic crust author.

Show how dates in hundreds of thousands or millions of years may be assigned to the sea floor stripes by comparison to land based. Magnetic reversals and sea floor striping a key factor in establishing the theory of plate tectonics was recognition of past reversals in the earth s magnetic field and the mapping of normal and reverse magnetic striping on the ocean floor. Magnetic striping of the sea floor after mid ocean ridges and trenches were discovered more evidence was discovered that helped to support the theory that the continents had moved around. Some of the worksheets for this concept are sea floor spreading work sea floor spreading a model of seafloor spreading inside earth work magnetic reversals activity name date sea floor spreading l 1 2 3 5 4 ovr l lesson 3 seafloor profiling seafloor spreading and subduction.

Magnetic striping magnetic minerals are found in rocks. Demonstrate sea floor spreading.

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Model Of Sea Floor Spreading

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