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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]
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?
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...
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.*
9 Αυγ 2024 · Scientists have recovered the first long section of rocks that originated in the Earth's mantle, the layer below the crust and the planet's largest component.
8 Αυγ 2024 · WASHINGTON, Aug 8 (Reuters) - Scientists using an ocean drilling vessel have dug the deepest hole ever in rock from Earth's mantle - penetrating 4,160 feet (1,268 meters) below the Atlantic...
At certain places, tectonic activity churns mantle material into the crust, from whence we can take it. But drilling a deep hole at the bottom of the ocean at a tectonic boundary heated by volcanism, as you might imagine, is far easier said than done.
