コラ半島超深度掘削坑
1. Kola Superdeep BoreholeThe Kola Superdeep Borehole (Russian: Кольская сверхглубокая скважина) is the result of a scientific drilling project of the Soviet Union on the Kola Peninsula. The project attempted to drill as deep as possible into the Earth's crust. Drilling began on 24 May 1970 using the Uralmash-4E, and later the Uralmash-15000 series drilling rig. A number of boreholes were drilled by branching from a central hole. The deepest, SG-3, reached 12,262 metres (40,230 ft) (12.26 km, 7.62 mi.
Read “Kola Superdeep Borehole” on English Wikipedia
Read “コラ半島超深度掘削坑” on Japanese Wikipedia
Read “Kola Superdeep Borehole” on DBpedia
Read “Kola Superdeep Borehole” on English Wikipedia
Read “コラ半島超深度掘削坑” on Japanese Wikipedia
Read “Kola Superdeep Borehole” on DBpedia
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