Hold-up in drilling
f.V.Z. Press Association) SCOTT BASE, Nov. 23. Exploratory drilling at Lake Vanda, in Antarctica, ; stopped again yesterday I when a boulder was struck about 40 feet below the bot-l tom of the lake. But officials of the Dry! Valley drilling project hope to bore through the boulder; by changing the drilling tech-; nique. The project, involving technicians and scientists from New Zealand, Japan, and the United States, involves the taking of a series of core samples from the bottom of the lake for analysis. It has now been decided to fit a diamond bit to the drillling rod and to us salt water as a drilling fluid. Dr S. Treves, of Nebraska; University, said today that! the only foreseeable danger to the lake from the drilling changes was the salt water' spilling on to the surface. But scientists carrying out experiments at Lake Vanda i had pumped water from the .bottom on to the ice in the past, he said. “If we cannot operate safely we will not drill.”
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Press, Volume CXIII, Issue 33391, 26 November 1973, Page 9
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172Hold-up in drilling Press, Volume CXIII, Issue 33391, 26 November 1973, Page 9
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