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When new rock is added to an oceanic ridge the magnetized strips on either side of the ridge are evidence of sea floor spreading. This is because the rocks on the two sides of the ridge?
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∙ 7y ago
are equal in width and polarity
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On a map of the seafloor the boundaries between normally magnetized oceanic crust and reversely magnetized oceanic crust are called?
isochrons
What are three kinds of evidence scienctist have found to support the sea floor spreading?
Mid-oceanic volcanic ridges.Magnetic reversals in oceanic crust symmetrical about mid-oceanic volcanic ridges.Try looking it up in your textbook, you don't expect everything to be handed to you without any work.
What is this is the process of creating new oceanic crust?
Sea floor spreading
Which force is responsible for seafloor spreading?
Gravity in the oceanic crust is responsible for seafloor spreading.
What is seafloor spreading best described as?
sea floor spreading is were the earths crust is spreading under the ocean, going almost all the way around the earth, there are also volcanoes where the sea floor spreading, because of the magma coming up from the earth core
When new rock is added to an oceanic ridge the magnetized strips on side of the ridge are evidence of sea floor spreading this is because the rock the two sides of the ridge?
are equal in width and polarity
When new rock is added to an oceanic ridge the magnetized strips on either side of the ridge are evidence of sea-floor spreading. This is because the rocks on the two sides of the ridge?
are equal in width and polarity
On a map of the seafloor the boundaries between normally magnetized oceanic crust and reversely magnetized oceanic crust are called?
isochrons
How do magnetic bands provide evidence that tectonic plates are moving apart at mid-oceanic ridges?
Through seafloor-spreading as iron rich minerals cool they become magnetized in the direction parallel to the existing magnetic field. As the magnetic fields change direction so will the magnetized minerals, allowing scientists to record each change in the seafloor as it spreads.
What evidence in rock supports the theory of seafloor spreading?
Convergence supports the theory of seafloor spreading. Samples of the deep ocean floor are evidence of seafloor spreading because the basaltic oceanic crust and overlapping sediment become younger as the mid-ocean ridge is approached. Also, the rock that makes up the floor of the ocean is younger than the continents.
What evidence in rocks supports the theory seafloor spreading?
Convergence supports the theory of seafloor spreading. Samples of the deep ocean floor are evidence of seafloor spreading because the basaltic oceanic crust and overlapping sediment become younger as the mid-ocean ridge is approached. Also, the rock that makes up the floor of the ocean is younger than the continents.
The ocean floor spreading from the ridge what are three kind of evidence scientist have found to support this ideas?
the oceanic crust goes down your mouth
What is the primary evidence that forms the basis of seafloor spreading?
The magnetic properties of rocks along the mid-oceanic ridges change alignment in a symmetrical manner.
What are three kinds of evidence scienctist have found to support the sea floor spreading?
Mid-oceanic volcanic ridges.Magnetic reversals in oceanic crust symmetrical about mid-oceanic volcanic ridges.Try looking it up in your textbook, you don't expect everything to be handed to you without any work.
Which force is responsible for seafloor spreading?
Gravity in the oceanic crust is responsible for seafloor spreading.
What is this is the process of creating new oceanic crust?
Sea floor spreading
What is seafloor spreading best described as?
sea floor spreading is were the earths crust is spreading under the ocean, going almost all the way around the earth, there are also volcanoes where the sea floor spreading, because of the magma coming up from the earth core
