Following that, the Antarctic ice sheet started to build some 34 million years ago. According to Ferraccioli, "the entire was wrapped in ice and physically preserved in the deep freeze." Otherwise, they would have deteriorated and we wouldn't have seen anything at all, the author says.
What are mountains made in Antarctica?
Between East and West Antarctica are the Transantarctic Mountains (TAM). The East Antarctic Craton's crustal reactivation is what creates the rift system that gave rise to them. When plates shift as a result of this rifting or seafloor spreading, a nearby convergent boundary arises, which eventually gives rise to the mountain range.
Scientists have discovered that 2.5 miles of ice in the east of Antarctica conceal a mountain range the size of the European Alps. The range raises concerns about how the vast ice sheets on the continent arose because it has peaks up to 4,000 meters above sea level.
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