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Explain how the processes of sea-floor spreading and magnetic reversal produce bands of oceanic crust that have different magnetic polarities?
Wiki User
∙ 10y ago
Based on earth's magnetic field, new oceanic crust that is created is polarized one way or the other at creation. The new crust is created by gaps between oceanic plates where magma comes out and hardens. This crust is pushed away from the spreading center by a few processes (if you want to learn more look up slab pull, slab suction and, most importantly, ridge push). Lets say the crust that is being created at a spreading center can have polarization N (north) or S (south). First crust with polarization N comes out, then after the magnetic poles flip crust with polarization S is coming out. This alternation of the crust that is being pushed from the spreading center causes the bands. You should look at some diagrams to understand it better.
Wiki User
∙ 10y ago
Wiki User
∙ 10y agoit forms the ocean crust by using the reversed magnetic polarity
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Strips of alternating magnetic polarities found in rocks in the ocean basin?
provide evidence for sea-floor spreading
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
What is magnetic striping evidence of?
Magnetic reversals and sea floor spreading.
What was the theory that was shown to be correct by age evidence and magnetic clues?
Magnetic Reversal
How does magnetic stripes prove seafloor spreading?
ddd
Strips of alternating magnetic polarities found in rocks in the ocean basins?
provide evidence for sea-floor spreading
Strips of alternating magnetic polarities found in rocks in the ocean basin?
provide evidence for sea-floor spreading
Strips of alternating magnetic polarities found in rocks in the ocean basins .?
provide evidence for sea-floor spreading
What is shown by magnetic minerals spreading from a mid ocean ridge?
That magnetic minerals spreading from a mid-ocean ridge
What is shown by magnetic minerals spreading from mid ocean ridge?
That magnetic minerals spreading from a mid-ocean ridge
What is shown by magnetic minerals spreading from a mid-ocean ridge?
That magnetic minerals spreading from a mid-ocean ridge
What did the magnetic strips prove in seafloor spreading?
They proved that the seafloor was spreading.
How are the rocks organized on the mid-Atlantic ridge?
They are arranged in a pattern with magnetic strips having reversed polarities.
How are the north and south pole differeant?
One is north and one is south. Also they have opposite magnetic polarities.
What are strips of alternating magnetic polarities found in rocks in the ocean basins?
These stripes represent polar inversions.
What is magnetic striping evidence?
Magnetic reversals and sea floor spreading.
What Magnetic striping evidence of?
Magnetic reversals and sea floor spreading.
