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Ice Ages

In Our Time

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Formation and Expansion of Ice Sheets on Antarctica

The chapter explores the conditions and history leading to the formation and expansion of ice sheets on Antarctica, including the thermal isolation of the continent over the South Pole. It highlights the role of Antarctica in the Ice Ages, detailing how its isolation allowed for the accumulation of snow without melting, contributing to the establishment of the present ice age. The discussion extends to analyzing geochemical proxies and carbon dioxide levels as crucial factors in regulating temperature changes and initiating ice ages.

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