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The seafloor spreading hypothesis explains how. Ocean ridges spread/ open up over time and are filled with new magma Rocks get progressively older farther away from the ridge crests Symmetrical patterns of magnetic reversals on either side of the mid ocean ridges All of the above
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The seafloor spreading hypothesis explains how • Ocean ridges spread/ open up over time and are filled with new magma • Rocks get progressively older farther away from the ridge crests • Symmetrical patterns of magnetic reversals on either side of the mid ocean ridges • All of the above • None of the above
Paleomagnetism is a field of study in geology in which geologists • Study how magnetic property came to earth • Study how the Sun’s cosmic rays affect Earth’s Magnetic field • Study magnetite-rich rocks as a means of recording historical changes in Earth’s magnetic field • Study how charged particles from the Su are modulated by the Earth’s magnetic field
Which of the following statements concerning paleomagnetism is FALSE? • Geomagnetic reversals cause the movements of the plates (tectonics) • Occasionally, the Earth’s magnetic field reverses, so the north and south poles switch polarity • Rocks possessing paleomagnetism indicate the direction of the magnetic poles at the time the rocks crystalized • Magnetic stripes on the seafloor provided evidence for sea-floor spreading