Mapping the ocean floor worksheet answer key.
Sea floor spreading lab questions.
Seafloor spreading is the creation of new seafloor or new oceanic crust 5.
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It is an underwater mountain range that forms when magma pushes up on the crust at a divergent boundary.
The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed.
The marker stripes in this lab represent the new rock forming during sea floor spreading where the newest rock are closer to the mid ocean ridge and the oldest rock are further away from the mid ocean ridge.
The ocean floor worksheet answer key.
Paleomagnetism and the ocean floor worksheet answer key.
The rate of seafloor spreading is approximately every 10 years.
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The process of sea floor spreading.
This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century.
Sea floor spreading answer key.
As years pass lateral segments of seafloor will thus share the same.
A model of seafloor spreading key 1.
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The earth does not get bigger.
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This creates new ocean crust.
As the ocean seafloor spreads the newly formed floor will adapt a specific magnetic signature according to the earth s magnetic pole at that time.
A 3 inches b 30 meters c 30 inches d 3 cm e 30 cm.
This is a mid ocean ridge.
The center slit represents a mid ocean ridge 2.
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Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them.
The formation of the new crust is due to the rising of the molten material magma from the mantle by convection current.
The oldest sections should be the sections on both sides furthest from the middle 4.
Molten rock pushes up from the asthenosphere and pushes the plates apart at the mid ocean ridge.
The mid ocean ridge is the region where new oceanic crust is created.
Seafloor spreading is happening at b.
