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The authorities of the Russian region of Murmansk, in the northwestern part of the country, are considering handing over to the State Kola Super Deep Well Property and maybe open it for sightseeing, as reported by the agency Interfax.
The well has a depth of12,262 meters, making it the deepest scientific object of its kind in the world.
The history of Kola's well
The history of the facility began in1970 and it was due to the race between the USSR and the USA, to reach the Mohorovicic discontinuity, the boundary between the crust and the earth's mantle.
The well is located on the Baltic shield, a old tectonic plate of about 3,000 million years.
In four years, the researchers they drilled 7,263 meters. At that depth, the first drilling rig, similar to the industrial ones, was no longer efficient, so it was necessary to replace it with a new one that could continue drilling at a speed of 60 meters per month.
The machinery replacement lasted a whole year.
In1983 a depth of12,066 metersBut the following year the drill broke down and a section of the rig remained in the main tunnel, so scientists had to start work again in the reserve tunnel.
Eight years latermanaged to reach the current depth. This was followed by two more breakdowns that prevented drilling from continuing.
In2008, the installation was officiallyclosed.
Working conditions deep in the Kola well
At a depth of 12 kilometers, working conditions became even more difficult, the then director of the facility, David Gubermán, reported in 2007.
"We are faced with what piercers call‘Natural curvature’. When hard rocks are frequently interspersed with soft rocks, the well stops moving vertically and 'turns' towards the soft rocks, "said the scientist in an interview in 2007.
‘The well to hell’
The most famous legend related to the Kola well says that when reaching 12,000 meters the researchers heard, through microphones, thecries of sinners tormented in hell.
In fact, the story originated in aFinnish newspaper, which was published onApril 1st It was released in 1989, but soon after it was reported by the world's media, giving the super-deep well an unexpected popularity. Governor tells:
For me, these posts were a complete surprise. We were working quietly […] and suddenly a flurry of phone calls fell on our office. […] Finally, I asked a caller directly: "Why is everyone suddenly interested in us?" "Well," he replied, "in all the newspapers they say: ‘They went to hell and woke up the demons.
However, the conditions at the bottom of the well could be considered infernal, since, given the proximity of the earth's core, at that depth the temperature is of200 degree centigrade.
The Scientific Value of the Kola Well
During drilling, Researchers drew 4,400 meters of rock samples from Kola's super deep well that allowed them to analyze the structure of the continental crust.
“It was assumed that at a depth of about 7,000 meters the so-called Conrad discontinuity between granites and basalts would be discovered. In the end, we entered the granites, that is, the arches, at a depth of 6,840 meters, and we no longer left them. There were no basalts even at 12,000 meters. So the well showed that thelayered structure of the earth's crust is not a dogma«, Explained Gubermán.
The former well director revealed another unexpected geological discovery, and that is the rocks extracted 3-4 kilometers deep were almost identical to those of the Moon.
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At the same time, the well was an important advance also for biology, since, by detecting in the samples14 species of petrified microorganisms, the researchers found that life on our planet originated at least 1.5 billion years earlier than previously believed.