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The seafloor acts as a geological 'tape recorder'
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- Title The seafloor acts as a geological 'tape recorder'
- Released 25/09/2012 2:17 pm
- Copyright ESA/AOES Medialab
Pole reversals are imprinted in the seafloor. As new oceanic crust is created through volcanic activity, iron-rich minerals in the upwelling magma are oriented to magnetic north at the time. These magnetic stripes are evidence of pole reversals. High-resolution observations from Swarm will fill gaps in our knowledge about Earth’s geological history.