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2 types of crust involved at constructive plate margins?
Oceanic crusts; the Mid-Atlantic Ridge and East Pacific Rise at zones of seafloor spreading and crustal extensions.
What does seafloor spreading form?
Mid-ocean ridge system.
A Rift zone Underwater volcano?
Yes, also known as seafloor spreading! A rift zone volcano is called a mid-ocean ridge. The seafloor splits & spreads apart at a mid-ocean ridge, with lava seeping out of this fissure. The lava forms new seafloor. The older seafloor moves away from the ridge. Therefore, our ocean floor is actually spreading, at a rate of about two inches per year in the Atlantic ocean, and about 13 in the Pacific.
What is one phenomenon that is considered evidence of seafloor spreading?
The Mid Atlantic Ridge
Which plate boundary creates new land like the seafloor at the mid-Atlantic ridge?
A Divergent Boundary
How high does the ridge rise from the sea floor?
About two feet high
Where is active seafloor spreading occurring today?
At any divergent plate margin: The Mid-Atlantic Ridge The boundary between the African Plate and Arabian Plate (the Red Sea) Great Rift Valley West Antarctic Rift East Pacific Rise Pacific-Antarctic Ridge Galapagos Rise Gakkel Ridge
2 types of crust involved at constructive plate margins?
Oceanic crusts; the Mid-Atlantic Ridge and East Pacific Rise at zones of seafloor spreading and crustal extensions.
What does seafloor spreading form?
Mid-ocean ridge system.
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.
Who first related the symmetrical magnetic patterns in seafloor basalt to seafloor spreading at a mid ocean ridge?
Vine and Matthews
What is the place were the seafloor if forced down into the mantle?
mid ocean ridge
What is Place were the seafloor is force down into the mantle?
mid ocean ridge
How does the age of seafloor bedrock vary with distance from a mid-ocean ridge?
The further from the ridge, the older the oceanic crustal rock.
A Rift zone Underwater volcano?
Yes, also known as seafloor spreading! A rift zone volcano is called a mid-ocean ridge. The seafloor splits & spreads apart at a mid-ocean ridge, with lava seeping out of this fissure. The lava forms new seafloor. The older seafloor moves away from the ridge. Therefore, our ocean floor is actually spreading, at a rate of about two inches per year in the Atlantic ocean, and about 13 in the Pacific.
What is one phenomenon that is considered evidence of seafloor spreading?
The Mid Atlantic Ridge
Is seafloor spreading in the rift valley or along outsides of ridge?
rift valley
