Séminaire au Département de Géologie de Matt Siegler

True Polar Wander inferred from lunar ice deposits

We find a convincing connection between True Polar Wander of the Moon's spin axis and the evolution of the large flood basalt filled region known as the Procellarum KREEP Terrain. It appears that this region caused the lunar pole to shift by at least 6 degrees. As the Moon shifted, we show evidence that this migration was recorded in the polar ice deposits.

Matt Siegler (JPL, Planetary Science Institute et Southern Methodist  university)
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