Great Moments in Earth History: Antarctic Glaciation

From The Sieve:

Diatomeas-Haeckel

Diatoms

Buried under thousands of feet of hard, ancient ice lies the solid earth of the Antarctic continent. For some 34 million years, vast glacial plains have ebbed and flowed over this rocky land. But the initiation of Antarctic glaciation—the point in time when conditions became right for snowfall to exceed snowmelt year after year—began suddenly and enigmatically.

Read the complete article here.

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