Tuesday, November 15, 2011

Magnetic Reversal Charts

Magnetic Reversals and Glaciation
Times when a magnetic reversal correlated with the start of an ice age.


During highlighted magnetic reversals (or excursions), the climate descended from periods of warmth such as today’s into full-blown glaciation in less than 20 years. (kya = thousands of years ago)

That there is a link between magnetic reversals and ice ages is undeniable.


At least 12 magnetic reversals can be linked to glaciation during the last three million years alone.


A magnetic reversal about three million years ago marked the onset of glaciation. A magnetic reversal about two million years ago marked the onset of glaciation. And yet another reversal about one million years ago marked the onset of glaciation.

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