LONDON: An ambitious British plan to search for minute forms of life in an ancient lake beneath Antarctica's ice has been suspended because of technical problems, the scientist leading the project said yesterday.
In a move that clears the way for US and Russia to take the lead, Professor Martin Siegert said technical problems and a lack of fuel had forced the closure of the £7 million (BD4.2m) project, which was looking for life forms and climate change clues in the lake-bed sediment.
"This is of course, hugely frustrating for us, but we have learned a lot this year," said Siegert of the University of Bristol, principal investigator for the mission, which was headed by the British Antarctic Survey (BAS).
"By the end, the equipment was working well, and much of it has now been fully field-tested," he said.
Experts from Britain's Lake Ellsworth mission had expected to find minute forms of life in the lake 3km under Antarctica's ice, the most remote and extreme environment known on Earth.
They had also hoped that by dating bits of seashell found in the water they would have been able to ascertain when the ice sheet last broke up and to better understand the risks of it happening again.
Scientists from the US and Russia are hot on Britain's heels when it comes to drilling through Antarctic ice to lakes that have been hidden for thousands of years.
The British scientists decided to abandon the mission after trying for 20 hours to connect two holes in the ice that were needed for the hot-water drill to work, said a BAS spokeswoman.
Without a connection between the two holes, the hot water would seep into the porous surface layers of ice and be lost, reducing the pressure and rendering the drill ineffective. The team tried to melt and dig more snow to compensate for the water loss, but without success.
As a result of the extra time taken to fix the problem, fuel stocks had been depleted to such a level as to make the operation unviable.