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How can we determine where the north and south poles were in ages past?

Asked by Yellowdog (9687points) 1 week ago

There’s the issue with the magnetic pole, and perhaps also the true north which has more to do I think with the stars and Earth’s axis. All of this, I assume, is further complicated by continental drift.

But how could it be determined if a certain geographic location was once the north or south pole, and how long ago?

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