Employees glaciological-drilling unit in the new year, resumed drilling wells above the relict lake Vostokv Antarctica, told RIA Novosti the head of the Russian Antarctic Expedition (RAE), the Arctic and Antarctic Research Institute of Roshydromet (AARI) Valery Lukin.
In early February 2012 the specialists of drilling unit of the 57th Russian Antarctic Expedition after decades of drilling for the first time entered the hidden under the Antarctic ice thickness chetyrehkilometrovoy East Lake — the largest subglacial lake in Antarctica. Analysis of the first water samples East has shown that they are essentially free of microorganisms.
"Drilling the well on course, no failures and no accidents. Far as I know, they have not yet reached a new core, formed from lake water to rise in the well. As I recall, last week they were at around 3295 meters", — said Lukin, without specifying the date of commencement of drilling.
Drilling operations on the well conducted within the framework of the 58th Russian Antarctic Expedition (RAE). In early December last year, there drill squad officers arrived and began preparations for re-entry wells. Drilling and lift-frozen water relict lake is expected to leave the whole of the season.
As previously reported, the depth of the well is approximately 3769.3 meters. It was at that point in the past, there was a contact of the bit with the water lens lake. After the drill was raised, the water of the lake, thanks to the pressure up and frozen in a well at a height of 600 meters.
Lake Vostok in Antarctica is a unique aquatic ecosystem that has been isolated from the surface of Earth's atmosphere and biosphere for millions of years. His study plays an important role in the study of climate change in the last millennium. To obtain samples of connate water from the lake will be prototypes hydrological probe biochemical probe and sampling probe at different levels. The penetration of the water body of the lake and the sampling is likely to occur not earlier than the 2014-15 period.