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.

Activity 2 magnetic reversals and sea floor striping lab.

Midocean ridges and oceanic crust author. 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. Magnetic striping magnetic minerals are found in rocks. These two things were the magnetic striping on the ocean floor and the age of seafloor rocks.

The patterns reflect the creation and spreading of oceanic crust along the mid oceanic ridges. Study maps of magnetic anomalies as measured over the oceanic ridges and look for the symmetrical patterns. Distanoe my km. 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.

Displaying top 8 worksheets found for activity seafloor spreading. Demonstrate sea floor spreading. Assuming the distance to the farthest isochron is 300 km the spreading rate of the ridge was. Magnetic reversals and sea floor striping created date.

Show how dates in hundreds of thousands or millions of years may be assigned to the sea floor stripes by comparison to land based. Following up the activity. 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. 300 km spreading rate.

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. Magnetic reversals and sea floor striping f.