Which is a result of Earth’s magnetic poles reversing over time?(1 point)
Responses
high amounts of iron found in ocean rocks
high amounts of iron found in ocean rocks
distinct bands in rocks that contain magnetic particles
distinct bands in rocks that contain magnetic particles
volcanoes occurring at tectonic plate boundaries
volcanoes occurring at tectonic plate boundaries
magma rising to the ocean floor at mid-ocean ridges
distinct bands in rocks that contain magnetic particles
distinct bands in rocks that contain magnetic particles
The correct response is: distinct bands in rocks that contain magnetic particles.
Explanation:
When the Earth's magnetic poles reverse, it means that the North Pole becomes the South Pole and vice versa. This reversal has happened several times throughout Earth's history. As the Earth's magnetic field changes during a pole reversal, it leaves a record of its past positions in rocks. This is because some rocks contain magnetic minerals, such as magnetite, which align themselves with the Earth's magnetic field when they are formed.
When these rocks cool and solidify, the magnetic minerals lock in their alignment, creating a permanent record of the Earth's magnetic field at that time. Over time, as the Earth's magnetic poles reverse, distinct bands with opposite magnetic orientations can be observed in the rocks. These bands, known as magnetic reversals, provide evidence of past pole reversals and help scientists understand the history of Earth's magnetic field.
Therefore, the occurrence of distinct bands in rocks that contain magnetic particles is a result of Earth's magnetic poles reversing over time.