Antarctica also volcano!

In the West Antarctic ice sheets (West Antarctic ice sheet, WAIS), the found in 2300 before the eruption of the volcano.


In fact, as early as 1993, Donald Blankenship of the University of Texas and others, on the use of geophysical methods have been found in the West Antarctic ice sheet under the active volcano in the activities, the most recent eruption was in 7500 estimated that before. But this result has been no direct observational evidence.


Recently, British Antarctic Survey team, Hugh Corr and David Vaughan has used airborne radar (airbone radar) observation, the same in the West Antarctic ice sheet, the discovery of the volcanic eruption may be formed by volcanic ash strata, it is estimated that the eruption was in 2300 before.



Even if the volcanic eruption is likely to melt ice sheets, but, based on calculations, each cubic meters of magma, a maximum of only 14 cubic meters of ice melting. According to estimates by radar signal reflection, more than 2000 years ago, the eruption of the volcanic eruption volume, only about 0.019 to 0.31 cubic kilometers fell between the middle-scale volcanic eruption.


Although the ice has been melting away little but ash and pyroclastic spread air or through the ice, a broad distribution of a considerable area. Far from over a thousand kilometers away Bingxin (ice core) sampling, are also clearly found that a layer of volcanic ash heap of records in the ice.


It now appears that the Antarctic under the volcanic eruptions, has become the melting ice, rising sea-surface one of the killers!