甘毕采夫冰下山脉被认为是辽阔的东南极冰盖的发源地。
The Gamburtsev subglacial mountains are thought to be the birthplace of the vast East Antarctic Ice Sheet.
到二月，它已然成为了默茨冰川的突出部分，从东南极冰盖延伸入南大洋。
Until February, it had been the tongue of the Mertz Glacier, sticking out from the East Antarctic ice sheet into the Southern Ocean.
此外，海平面在数十米区间内的波动，表明在二氧化碳接近这个临界值时东南极洲冰盖会产生剧烈蒸发。
Furthermore, sea level fluctuated tens of meters during this interval, suggesting a highly volatile East Antarctic Ice Sheet when CO2 concentrations were near this threshold value.
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