There is evidence of coral reefs in the Arctic Ocean. How was that possible? Was this region of the planet once in a different location because of a polar shift, or was the climate in the Arctic once warm enough to support them for other reasons?

DWQA Questions › Category: Physical Universe › There is evidence of coral reefs in the Arctic Ocean. How was that possible? Was this region of the planet once in a different location because of a polar shift, or was the climate in the Arctic once warm enough to support them for other reasons?

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Nicola Staff asked 3 years ago

This indeed is due to there being a prior location where this area of the planet was receiving greater solar energy than today. While that can happen as a result of a polar tilt, that was not the reason here and we will have more to say on that with your subsequent questions.