When you are finished your piece of paper should look like the diagram in figure 1.
Labeled sea floor spreading diagram.
Explain that seafloor spreading and movement is a cyclical process because it is constantly being created and destroyed.
A review of magnetic evidence for sea floor spreading.
Notice that the compositional layers are labeled on the left side and the physical layers are labeled on the right side of the diagram.
Side view of earth layers from crust to core.
The diagram on the right is a close up view of the upper 700 km about 450 miles of the earth.
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Start by looking at the diagram on the left.
Lower mantle semi rigid the deepest parts of the mantle just above the core.
Review answers to the seafloor structure handout by filling in the diagrams on board or using smartboard.
Another diagram just to make it clearer.
Spreading rates the linear magnetic anomalies provide an estimate of the age of the oceanic crust like tree rings.
To reinforce the slits.
The formation of the new crust is due to the rising of the molten material magma from the mantle by convection current.
The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed.
Lithosphere the crust plus the rigid upper mantle.
The process is continuous because forces cause opposite sides of the midocean ridge to constantly move apart making new room for the process to repeat.
Read the definitions below then label the seafloor spreading plate divergence diagram.
Refer back to the demonstration that you performed during the engage portion of the lesson to demonstrate this.
Labeled diagram of seafloor spreading.
The mid ocean ridge is the region where new oceanic crust is created.
The process of sea floor spreading.
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Sea floor spreading in the early 1960s.
5 with a pair of scissors cut the vertical lines so there will be three slits on the paper all the same height and parallel to each other.
In seafloor spreading.
Ocean floor diagram labeled to the sky owl city album cover orange juice carton cartoon 2003 mercedes benz cl55 amg orange flowers for weddings olivia wilde wallpaper 1920 blake shelton honey bee mp3 orange background wallpaper orange county ca orange county map california obama in ireland photos tfnc white dress owl art images 2005 mercedes cl55 amg ocean city beach week oceania.
Magma molten rock withing the earth s mantle.
Model of sea floor spreading labeling sea floor spreading diagram quizlet seafloor spreading and plate tectonics model of sea floor spreading.
