are equal in width and polarity
are equal in width and polarity
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.
the oceanic crust goes down your mouth
The magnetic properties of rocks along the mid-oceanic ridges change alignment in a symmetrical manner.
Spreading is generally thought of when speaking of sea-floor spreading. Sea-floor spreading takes place at the mid-ocean ridge where two oceanic plates are spreading/pulling apart from one another.
are equal in width and polarity
are equal in width and polarity
isochrons
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.
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.
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 oceanic crust goes down your mouth
The magnetic properties of rocks along the mid-oceanic ridges change alignment in a symmetrical manner.
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.
Sea floor spreading
Gravity in the oceanic crust is responsible for seafloor spreading.
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