Taking a Look Inside the Earth
APEGGA, the Canadian Society of Petroleum Geologists, and the geology
and geophysics departments at the University of Calgary invited two Russian
researchers, Dr. Youri Kouznetsov (left) and Dr. Andrei Karakin, to present
(on Nov. 23) their methods of investigation and the basic results from
studying the Kola Superdeep Borehole in Russia.
Drilling of the borehole began in May 1970 in the northern part of the
Baltic shield and was performed in three stages. The first stage, from
1970-1975, resulted in a drilled depth of 7,263 metres. The second stage,
from 1976-1980, the depth moved to 10,636 metres deep and the final stage,
from 1981-1995, the drilling reached a depth of 13,000 metres into the
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