First samples obtained from sub-glacial Antarctic lake
Moscow: Russian researchers have obtained the first sample of transparent ice from the water of a unique sub-glacial lake in Antarctica during drilling operations, the Arctic and Antarctic Research Institute said.
In February 2012, after decades of drilling, Russian scientists finally managed to penetrate Antarctica`s ice sheet at a depth of some 3.7 km to reveal the secrets of Lake Vostok, which had been sealed there for the past 20 million years.
Explorers hope Vostok, which is the largest of Antarctica`s buried network of icebound lakes and also one of the largest lakes in the world, could reveal new forms of life and show how life evolved before the ice age.
Scientists have previously examined water samples received when they drilled deep into the lake back in 2012, but they were not sure these were samples of lake water rather than water inside the glacier above the lake.
So in order to receive ice right from the lake, researchers drilled into the glacier once again in January 2013.
"The first core of transparent lake ice, two metres long, was obtained on January 10 at a depth of 3,406 metres. Inside it was a vertical channel filled with white bubble-rich ice," the Arctic and Antarctic Research Institute, part of the Federal Service for Hydrometeorology and Environmental Monitoring, said in a statement.
The institute said the composition and origin of the new core are being determined.
The discovery of the hidden lakes of Antarctica in the 1990s sparked much enthusiasm among scientists all over the world. Some think the ice cap above and at the edges created a hydrostatic seal with the surface that prevented lake water from escaping and kept anything else from getting inside.
Ice from Lake Vostok may have special physical properties which are different from those of ordinary ice, said Vyacheslav Martyanov, the head of the Russian Antarctic Expedition`s logistics centre.
More from India
More from World
More from Sports
More from Entertaiment
- Ajinkya Rahane to captain India on Zimbabwe tour; Dhoni, Kohli rested
- Kejriwal knew Tomar possessed fake degree, says Yogendra Yadav
- Shiv Sena slams HC order banning erection of pandals on roads
- Top leader of NSCN(K) arrested for Manipur attacks by NIA
- Vijender Singh turns professional boxer, to miss 2016 Rio Olympics
- India vs Zimbabwe: Ajinkya Rahane to lead; MS Dhoni, Virat Kohli rested
- Tihar Jail's security breached: Lt Governor Najeeb Jung orders probe, Centre seeks report
- Chinese military research academy praises India's main battle tank Arjun, says it's 'very good'
- Gangster Abu Salem ready to tie the knot with girl seeking to marry him
- Vijender Singh brings down curtains on India career, turns professional