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FranticPonE t1_j2tuhmp wrote

Reply to comment by GeoGeoGeoGeo in 450 - 440 million years ago a ~50˚ True Polar Wander event swept Gondwana across the South Pole, triggering glaciation and the second most lethal of the “Big Five” mass extinctions, the end-Ordovician mass extinction by GeoGeoGeoGeo

TIL What Polar Wander means, and holy shite I didn't think that was possible.

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GeoGeoGeoGeo OP t1_j2twr06 wrote

Glad to hear it! There are so many things I still find mind blowing or hard to grasp in geology, it's such a fantastic field of study. TPW is also thought to have occurred on Mars as well^1, ^2

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