Kola 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 …
Why Did the Russians Seal Up the Deepest Hole in the World?
Underneath — and virtually unseeable from ground level — at just 9 inches (23 centimeters) in diameter, is the world's deepest man-made hole. The Kola Superdeep Borehole runs about 40,230 feet (12,262 meters) or 7.6 miles (12.2 kilometers) into Earth's surface.
7 facts about the Kola Superdeep Borehole - Interesting Engineering
2024年1月2日 · The Kola borehole reached 40,230 feet (12,262 meters) in 1989, making it the deepest human-made hole on Earth. As of 2023, it remains the deepest known hole created by human beings.
The deepest hole we have ever dug - BBC
2019年5月6日 · 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...
How Deep Is the Deepest Hole in the World? - Scientific American
2020年2月22日 · 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.*
Kola Superdeep Borehole - Simple English Wikipedia, the free …
The Kola Superdeep Borehole (Russian: Кольская сверхглубокая скважина, Kolskaya sverkhglubokaya skvazhina) was a very deep hole dug on the Kola Peninsula in Russia during 1970-1992 and closed by 2008.
What Is The Kola Super Deep Borehole? - WorldAtlas
2017年5月11日 · The Kola Superdeep Borehole is the deepest borehole in the world. It resulted from a scientific drilling by the Russians on the Kola Peninsula between May 1970 and 1992. The borehole consists of several holes that branch from the central hole - the SG-3 is the deepest hole with a depth of 9.3 miles and a diameter of nine inches.
Kola Superdeep Borehole - Atlas Obscura
2009年11月10日 · The deepest hole is called “SG-3," and though just nine inches in diameter, it extends down a staggering 7.5 miles. That's roughly a third of the way through the Baltic continental crust.
Kola Superdeep - EarthDate
2021年6月12日 · From 1970 to 1994, in the western Russian province of Murmansk, the Kola Superdeep Borehole drilled to the deepest point ever reached below Earth’s surface. Housed in this 27-story superstructure, it found high temperatures, gases, fractures, water, and Precambrian fossils, and changed some long-standing scientific hypotheses.
The Kola Superdeep Borehole - WorldAtlas
2017年6月21日 · After nine years of drilling, the project broke the record of the world's deepest hole, which stood at 9,583 meter and was located in Oklahoma, United States. It took nineteen years for the scientists to drill the deepest hole of the project named SG-3.