The Kola ultradeep hole (SG-3) - is the world deepest borehole. It was bored solely to explore the lithosphere in the place where the Moho discontinuity comes close to the Earth surface. The Kola peninsula.
- Categories: Environmental Issues, Science & Technology
- Location: Murmansk region, Russia
- Event date: 01.05.1984
- Date published: 29.09.2009
- Author: A. Varfolomeev
- Source: Sputnik
- Credit: Sputnik
- Original: DP84-2621, 35 mm slide
- Media: JPEG, 5363x3431px, 5.9Mb