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The 12 pages that link to Geomagnetic reversal, each with the reason it gives.

• Seafloor spreadingRelated: Reversals timestamp the crust, turning the ocean floor into a magnetic tape of spreading.

• PaleomagnetismRelated: Why and how the field reverses is still not fully understood.

• MagnetostratigraphyRelated: Reversals create the polarity boundaries used to divide a rock sequence into magnetozones.

• GeodynamoRelated: Reversal records show that the geodynamo can reorganize its global magnetic field.

• Vine–Matthews–Morley hypothesisRelated: Successive reversals paint alternating normal and reversed stripes as crust drifts away from the ridge.

• Earth's outer coreRelated: The flow changes that trigger reversals remain difficult to predict.

• Thermoremanent magnetizationRelated: Cooling lavas preserve polarity changes as thermoremanent magnetization.

• 2012 phenomenonRelated: Claims that a sudden reversal would trigger catastrophe were attached to 2012, despite no such event occurring.

• Lantian ManRelated: Reversal boundaries provide time markers for dating the Lantian deposits.

• Pacific–Antarctic RidgeRelated: Reversals create magnetic stripe patterns used to date and measure seafloor spreading.

• Seafloor spreading hypothesisRelated: Reversals provide the clock that stamps spreading crust with dateable magnetic stripes.