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What observation has been made about the age of the basalt that forms a mid ocean ridge?
New magma of basalt composition emerges at and near the axis because of decompression melting in the underlying Earth's mantle.
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What is the color and the type of rock that forms oceanic crust at mid ocean ridges?
The color of rock that forms oceanic crust at mid-ocean ridges is usually dark gray to black. The type of rock is basalt, which is rich in iron and magnesium and forms from solidified lava.
What happens when new basalt forms along mid ocean ridges it?
The molten material then spreads out, pushing the older rock to both sides of the ridge. As the molten material cools, it forms a strip of solid rock in the center of the ridge. Then more molten material flows into the crack. The material splits apart the strip of solid rock that formed before, pushing it aside.
A mid-ocean ridge forms at what type of plate boundary?
A mid-ocean ridge forms at the divergent plate boundary. This boundary initially forms rifts that later on become rift valleys.
What type of plate boundary form a mid ocean ridge?
A mid-ocean ridge forms at the divergent plate boundary. This boundary initially forms rifts that later on become rift valleys.
A mid-ocean ridge forms along what plates?
A mid-ocean ridge forms along divergent plate boundaries, where tectonic plates are moving apart. These boundaries occur where magma rises to the surface, creating new oceanic crust and extending the ocean floor.
What observation has been about the age of the basalt that forms a mid ocean ridge?
New magma of basalt composition emerges at and near the axis because of decompression melting in the underlying Earth's mantle.
What is mid ocean ridge molten rocks made out of?
Basalt. Basalt - Wikipedia, the free encyclopedia
What is the color and the type of rock that forms oceanic crust at mid ocean ridges?
The color of rock that forms oceanic crust at mid-ocean ridges is usually dark gray to black. The type of rock is basalt, which is rich in iron and magnesium and forms from solidified lava.
What happens when new basalt forms along mid ocean ridges?
Magma that has bubbled up through the crack in the Earth's surface.
How do strips of magnetized rock on the ocean floor provide evidence of sea-floor spreading?
Strips of ocean-floor basalt record the polarity of earth's magnetic field at the time the rock formed. These strips form a pattern that is the same on both sides of the mid-ocean ridge. the pattern shows that ocean floor forms along mid-ocean ridges and then moves away from the ridge.
Who first related the symmetrical magnetic patterns in seafloor basalt to seafloor spreading at a mid ocean ridge?
Vine and Matthews
What happens when new basalt forms along mid ocean ridges it?
The molten material then spreads out, pushing the older rock to both sides of the ridge. As the molten material cools, it forms a strip of solid rock in the center of the ridge. Then more molten material flows into the crack. The material splits apart the strip of solid rock that formed before, pushing it aside.
Is ocean crust formed at a mid ocean ridge?
Yes, the process that creates oceanic crust on a mid-ocean ridge is called "seafloor spreading". seafloor spreading creates a new oceanic crust that forms on the mid-ocean ridge.
What forms at the center of the mid ocean ridge?
New oceanic crust.
A mid-ocean ridge forms at what type of plate boundary?
A mid-ocean ridge forms at the divergent plate boundary. This boundary initially forms rifts that later on become rift valleys.
What type of plate boundary form a mid ocean ridge?
A mid-ocean ridge forms at the divergent plate boundary. This boundary initially forms rifts that later on become rift valleys.
What causes material to form at a mid-ocean ridge on the ocean floor?
New material forms on the ocean floor of the mid-ocean ridge due to plate tectonics and volcanic activity. Volcanic eruptions deposit cooled magma on the ocean floor.
