In 2012, the event will take place worldwide — penetration relic subglacial Lake Vostok with an estimated age of about 30 million years. So far in the history of the earth no one has looked before.
Russian scientists have reached the surface of the subglacial Lake Vostok in Antarctica is located at a depth of 4000 meters. The drilling process took more than 20 years. Now, explore the lake will be continued in December 2012 when the Antarctic summer comes.
Russian Antarctic Expedition drilling subglacial lake Vostok successfully completed: the weekend, scientists have reached the surface of the lake. This is"Gazeta.ru "sources said FGBU Arctic and Antarctic Research Institute(AARI) and Polar Marine Geological Expedition "(PMGE).
The opening of the East Lake — one of the largest geographical discoveries of the second half of the XX century. This lake is unique in that it was isolated from the surface of the earth for hundreds of thousands, if not millions of years. Lake served as a natural insulator and is a four-kilometer ice shell over it. As scientists believe, in the waters of the lake can inhabit living organisms, because it contains all the factors necessary for life.
"My colleagues who work in the area of Lake Vostok, about the imagined it: the lake — is opening an international team, which includes Russian, American and British scientists — told the website STRF.ru PMGE chief, honorary polar Valery Masolov. — In July 1994, at the Conference Room of the Scientific Committee on Antarctic Research SCAR in Rome Andrei Kapitsa made the first public announcement about this natural phenomenon. We are counting on that date. And in 1995, an international team of scientists to come in and Kapitsa, in the British journal Nature made the first scientific publication. "
Drilling of ice to paleoclimatic studies based on the Vostok station was started in 1989 by researchers of the joint expedition of the Soviet, French and American scientists.
From a depth of 3539 m, reached by 1996, the chemical and isotopic composition of the ice and its crystallographic structure has changed — it turned out that this ice is frozen water under the ice of the lake.
Latency was caused concern including foreign researchers due to the fact that during the drilling unused antifreeze kerosene to the well does not freeze at temperatures as low as minus 90 degrees. This antifreeze can lead to contamination of water under the ice of the lake, and to destroy microfauna, if there is any. However, as said Valery Lukin, the head of the Russian project, have taken all precautions to avoid contamination. In particular, drilling technology was tested in similar conditions in Greenland.
Seasonal work of the 57th Russian Antarctic Expedition(RAE) for drilling ice above Lake Vostok began Jan. 2, 2012.
"Simultaneously, drilling, glaciologists and biologists put forward their suggestions in the ice cover reveal certain microorganisms that there actually is not the place.
Each proposition to be proved. We rely on textured material, Americans are more models, — said Valery Masolov of progress. — Fantasy they have the most extraordinary, the benefit of modern computers provide the ability to model what you want. We tried at first to take measurements using geophysical methods and then simulate. "
All work to be completed this season on Feb. 5, after contact with the rig water column of the lake and perform a set of special works, which eventually happened.
Now in Antarctica begins ten-month long winter, which makes it impossible to work on the study of the lake. Experts return to continue the research until December 2012 in order to obtain samples of fresh frozen waters of the lake, past the hole, and explore them.
It should be noted that the upcoming completion of the drilling of Lake Vostok foreign media last week paid attention almost more than the Russian. For example, a researcher at the University of Montana
(USA) John Priscu gave a lot of comments from various zines, talking about the importance of the upcoming event. However, with one of these comments was an incident: as a result, some media reported citing Priscus that the Russian expedition to drill the East Lake was gone for five days and does not communicate. As a result, the scientists had to make a special statement in which he said he had not said anything like that. As for the drilling process, the Priscus to the question if he would like to be on the drilling site at the time of reaching the surface of the lake, replied:"Yes, I would like to be there. But I think I’d still be standing a hundred meters from the well. "