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  1. science.howstuffworks.com › engineering › civilWhy Did the Russians Seal Up the Deepest Hole in the World?

    20 Οκτ 2023 · The Kola Superdeep Borehole in Russia is the deepest hole in the world. It's deeper than the Mariana Trench and deeper than Mt. Everest is tall. Why did the Russians dig this deep, and why did they stop?

  2. en.wikipedia.org › wiki › Kola_Superdeep_BoreholeKola Superdeep Borehole - Wikipedia

    The Kola Superdeep Borehole SG-3 (Russian: Кольская сверхглубокая скважина СГ-3, romanized: Kol'skaya sverkhglubokaya skvazhina SG-3) is the deepest human-made hole on Earth (since 1979), which attained maximum true vertical depth of 12,262 metres (40,230 ft; 7.619 mi) in 1989. [1]

  3. www.livescience.com › planet-earth › geology14 of the deepest sinkholes on Earth - Live Science

    4 Αυγ 2023 · In 2022, scientists discovered a 630-foot-deep (192 meters) sinkhole containing an ancient forest and dense overgrowth in southern China. Here are some of the biggest known sinkholes on Earth,...

  4. www.bbc.com › future › articleThe deepest hole we have ever dug - BBC

    6 Μαΐ 2019 · This is the Kola Superdeep Borehole, the deepest manmade hole on Earth and deepest artificial point on Earth. The 40,230ft-deep (12.2km) construction is so deep that locals swear you can...

  5. www.scientificamerican.com › article › how-deep-is-the-deepest-hole-in-the-worldHow Deep Is the Deepest Hole in the World? - Scientific American

    22 Φεβ 2020 · Known as the Kola Superdeep Borehole, the deepest hole ever dug reaches approximately 7.5 miles below the Earth’s surface (or 12,262 meters), a depth that took about 20 years to reach.* The...

  6. curiosmos.com › here-are-12-of-the-deepest-holes-on-earthHere Are 12 of the Deepest Holes on Earth — Curiosmos

    25 Απρ 2019 · Located in Chile, the mine, better known as Chuqui, is believed to produce the most copper in the world. At around 2,800 feet deep, it’s one of the largest holes ever dug into the Earth.

  7. www.cnn.com › 2020/09/04 › worldMassive mystery holes appear in Siberian tundra - CNN

    4 Σεπ 2020 · The dramatic 30-meter (100-feet) deep hole in Western Siberia is the latest of several to have formed in the region since 2014.

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