The World’s deepest hole

In the early 1970s, the Soviet Union had quite an unusual project in the Pechensky District, approximately 1000 kilometers / 670 miles North of St. Petersburg. They wanted to find out more about the Earth and decided to start a borehole which was supposed to be 15 kilometers (9.3mi) deep.

They never reached that depth, but still got to 12,2 kilometers, which still qualifies as the deepest known hole in the World. Interestingly, fossils were found at a depth of over 6km. Furthermore, scientists were astounded that water was found at around 7km. Eventually, the project was halted in 2006 due to lack of funding. The site is closed down now. One can only imagine, what they would have found had they continued.

 



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Information sources:

https://en.wikipedia.org/wiki/Kola_Superdeep_Borehole
http://www.zmescience.com/science/geology/drilling-to-the-mantle-6-unexpected-discoveries-from-the-worlds-deepest-well

Photo Credits / Sources:

By Andre Belozeroff – Страница автора на Panoramio.com [CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=6822548], via Wikimedia Commons

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