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How do magnetic stripes on the sea floor prove the sea floors spreading?
Wiki User
∙ 13y ago
ok so...
over time, the magnetic poles kept changing directions. for example ur compass wuld suddenly turn the opposite direction. there was this type of rock(forgot the name) that always points the direction of the magnetic pole. this type of rock erupts from the bottom of the ocean floor. scientists found that the rocks at the ocean floor would change direction in order. like, one section of the rock would be pointing north, and one section would be pointing south, vice versa. they knew that since the rocks change directions, new ocean floor was forming and were pushing the continents away from each other. the sea was alos spreading.
i used this 4 my hw
u better not go 2 my middle school(chaparral)
Wiki User
∙ 13y ago
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What are the 3 lines of evidence for sea-floor spreading?
1. evidence from molten rocl 2. magnetic stripes 3. drilling samples
What are three kinds of evidence scientists have discovered to support the idea of the ocean floor spreading?
molten material, magnetic stripes, and the ages of the rock.
What is magnetic striping evidence of?
Magnetic reversals and sea floor spreading.
Which aspect of magnetic reversal provides evidence of continental drift?
Periodically, the magnetic field of the earth reverses polarity. The direction of the magnetic field is recorded in the magnetic properties of rocks when they are erupted. Rocks are being continuously added at sea floor spreading regions, and thus the magnetic reversals are recorded as pairs of parallel 'stripes' alongside the mid ocean spreading ridge.
How are magnetic patterns in sea floor rock evidence of seafloor spreading?
Magnetic alignment of rocks, in alternating strips that run parallel to ridges, indicates reversals in Earth's magnetic field and provides further evidence of seafloor spreading.
How magnetic reversals provide evidence for sea floor spreading?
Because of the stripes at the sea floor which are magnetic minerals
How does magnetic reversals provide evidence for seafloor spreading?
Because of the stripes at the sea floor which are magnetic minerals
What are pieces of evidence of sea floor spreading?
molten material,drilling samples, and magnetic stripes
What are two pieces of evidence for sea-floor spreading?
Magnetic stripes and absolute ages of seafloor basalt.
What three forms of evidence do geologists have of sea floor spreading?
Magnetic Stripes, Drilling Samples, and Molten Material.
What are three types of evidence provided support for the theory of sea-floor spreading?
Eruption of molten material, magnetic stripes in the rock of the ocean floor, and the ages of the rocks themselves.
What are the 3 lines of evidence for sea-floor spreading?
1. evidence from molten rocl 2. magnetic stripes 3. drilling samples
What are three kinds of evidence scientists have discovered to support the idea of the ocean floor spreading?
molten material, magnetic stripes, and the ages of the rock.
What three types of evidence provided support of the theory of sea-floor spreading?
three are : eruptions of molten material magnetic stripes in the rock of the ocean floor and the ages of the rocks themselves :)
What three types of evidence provided support of the theory of sea floor spreading?
three are : eruptions of molten material magnetic stripes in the rock of the ocean floor and the ages of the rocks themselves :)
What is magnetic striping evidence?
Magnetic reversals and sea floor spreading.
What Magnetic striping evidence of?
Magnetic reversals and sea floor spreading.
