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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]
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.*
Earth's upper mantle is divided into two major rheological layers: the rigid lithosphere comprising the uppermost mantle (the lithospheric mantle), and the more ductile asthenosphere, separated by the lithosphere-asthenosphere boundary.
20 Οκτ 2023 · The Kola Superdeep Borehole, located in Russia, is the world's deepest man-made hole, reaching a depth of 40,230 feet (12,262 meters) or 7.6 miles (12.2 kilometers), surpassing the depth of the Mariana Trench and the height of Mount Everest.
12 Μαρ 2024 · If the Chikyu's drill rig breaks through a transitional boundary called the Moho, it would reach the Earth's mantle, the mysterious 1,740-mile (2,900-kilometer) thick layer between the crust and the planet's hot, molten core [sources: USGS, ScienceDaily].
19 Δεκ 2023 · The Hidden Layers of Earth and Tectonic Plate Movements. Activity in the mantle makes mountains, moves tectonic plates, and causes earthquakes and volcanic eruptions. Learn more about the thick, active layer that makes our Earth our Earth. By Matt Benoit.
8 Αυγ 2024 · In the middle of the North Atlantic Ocean, geologists have burrowed 1268 metres below the seafloor – the deepest hole drilled into Earth’s mantle yet. Analysis of the resulting rock core...
