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When scientists looked at the polarity of bands of rocks on either side of the mid ocean ridges what did they find?
Scientists found that the polarity of the magnetic bands on either side of mid-ocean ridges was symmetrical and mirrored each other. This pattern indicated periods of magnetic reversals, where Earth's magnetic field flipped, creating alternating stripes of normal and reversed polarity. This discovery supported the theory of seafloor spreading, demonstrating that new oceanic crust is formed at the ridges and gradually moves away, carrying the magnetic information with it.
What causes the magnetic striping noticed about the mid ocean ridges?
These "stripes" formed the pattern known as magnetic striping. ... They hypothesized that the magnetic striping was produced from the generation of magma at mid-ocean ridges during alternating periods of normal and reversed magnetism by the magnetic reversals of the Earth's magnetic field.
Magnetic patterns on the ocean floor were puzzling because they?
revealed a symmetrical alternation of magnetic orientations on either side of mid-ocean ridges. This suggested that new oceanic crust was being formed at these ridges, with molten magma solidifying and locking in Earth's magnetic field at the time of its creation. By studying these patterns, scientists could map the history of seafloor spreading and plate tectonics.
Marine magnetic anomaly belts run parallel to?
Mid-Ocean Ridges
How do ocean basin magnetic reversals prove plate tectonics exists?
They technically don't. They do provide evidence for it, however, in that they occur in pairs on either side of a rift, providing strong evidence that the rocks on either side were deposited at the same time and that the rifts are spreading.
When scientists looked at the polarity of bands of rocks on either side of the mid ocean ridges what did they find?
Scientists found that the polarity of the magnetic bands on either side of mid-ocean ridges was symmetrical and mirrored each other. This pattern indicated periods of magnetic reversals, where Earth's magnetic field flipped, creating alternating stripes of normal and reversed polarity. This discovery supported the theory of seafloor spreading, demonstrating that new oceanic crust is formed at the ridges and gradually moves away, carrying the magnetic information with it.
What causes the magnetic striping noticed about the mid ocean ridges?
These "stripes" formed the pattern known as magnetic striping. ... They hypothesized that the magnetic striping was produced from the generation of magma at mid-ocean ridges during alternating periods of normal and reversed magnetism by the magnetic reversals of the Earth's magnetic field.
Magnetic patterns on the ocean floor were puzzling because they?
revealed a symmetrical alternation of magnetic orientations on either side of mid-ocean ridges. This suggested that new oceanic crust was being formed at these ridges, with molten magma solidifying and locking in Earth's magnetic field at the time of its creation. By studying these patterns, scientists could map the history of seafloor spreading and plate tectonics.
Marine magnetic anomaly belts run parallel to?
Mid-Ocean Ridges
True or false magnetic stripes on the ocean floor are places where oceanic crust sinks back to the mantle?
True. Magnetic stripes on the ocean floor are created by alternating bands of magnetic polarities in the oceanic crust. These stripes are evidence of seafloor spreading where new crust is formed at mid-ocean ridges, pushing older crust away. Subduction zones are where older crust sinks back into the mantle.
How do earths magnetic pole reversals provide evidence for plate tectonics?
Magnetic stripes can be seen as you move away from ocean ridges.
The pattern of magnetic reversals along the sides of mid-ocean ridges resembles?
The pattern of magnetic reversals along the sides of mid-ocean ridges resembles stripes that alternate in polarity, created as new oceanic crust is formed at mid-ocean ridges and records the Earth's changing magnetic field. These magnetic stripes provide evidence for seafloor spreading and plate tectonics.
What is the primary evidence that forms the basis of seafloor spreading?
The primary evidence for seafloor spreading comes from magnetic striping patterns on the ocean floor. These patterns show alternating bands of normal and reversed polarity, indicating that new oceanic crust is being continuously formed at mid-ocean ridges and spreading away from the ridge axis.
How do strip of magnetized rock on the ocean floor provide evidence of sea-floor spreading?
Strips of ocean-floor basalt record the polarity of earth's magnetic field at the time the rock formed. These strips form a pattern that is the same on both sides of the mid-ocean ridge. the pattern shows that ocean floor forms along mid-ocean ridges and then moves away from the ridge.
What properties of iron bearing minerals on the seafloor support the theory of seafloor spreading?
iron bearing minerals can record Earth's magnetic field direction. when Earth's magnetic field reverses, newly formed iron bearing minerals will record the magnetic reversal. magnetic reversals show new rock being formed at mid-ocean ridges. This helped explain how the crust could move
Where is the newest ocean crust formed?
mid ocean ridges
What are mid ocean ridges formed from?
the wind ;)
