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How do strips 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.
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 feature on the ocean floor does the lines on the strips represent?
It represents the pattern of the magnetic strip.
What are magnetic strips on the floor caused by?
Movement of the ocean crust
What are magnetic strips on the sea floor caused by?
Movement of the ocean crust
Is there magnetic strips on the ocean floor are places where oceanic crust sink back to the mantle?
Is there magnetic stripe son the ocean floor are places where oceanic crust sink back to the mantle
Linear magnetic patterns associated with mid-oceanic ridges are configured as what?
Linear, magnetic patterns associated with mid-ocean ridges are configured as normal and reversed magnetized strips roughly parallel to the ridge. A very long lived magma source located deep in the mantle is called a hot spot.
Strips of alternating magnetic polarities found in rocks in the ocean basin?
provide evidence for sea-floor spreading
How are ocean-floor rocks and sediments evidence of seafloor spreading?
Ocean-floor rocks near mid-ocean ridges show a symmetrical pattern of magnetized stripes parallel to the ridge axis. These stripes result from periodic reversals in Earth's magnetic field and provide evidence of seafloor spreading. Sediments on the ocean floor also show younger ages near the ridges, supporting the idea of seafloor spreading.
Why are magnetic strips on the sea floor are parallel to the mid ocean ridge?
The magnetic strips on the sea floor are parallel to the mid-ocean ridge because new oceanic crust is constantly being formed at the ridge due to volcanic activity. As the magma cools and solidifies, it records the Earth's magnetic field orientation at the time. This creates a symmetrical pattern of magnetic strips on either side of the ridge as the Earth's magnetic field reverses over time.
Vine and Matthews determined that new ocean floor was being produced at ocean ridges by examing?
the magnetic pattern on the sea floor
What kinds of magnetism did scientists finds while studying the ocean floor?
Scientists found evidence of magnetic stripes on the ocean floor, which indicated periodic reversals in Earth's magnetic field. This discovery helped support the theory of plate tectonics and seafloor spreading.
