Abandoning The Project
Because they realized the machinery would not last in those environments, they decided to cancel the project. It had been 22 years since they had started digging at that point.
Abandoning The Project
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The Kola Superdeep Borehole
Before sealing up what is now recognized as the Kola Superdeep Borehole, the researchers discovered a couple of fascinating facts. For one thing, they discovered small marine plant fossils at a depth of about four miles.
The Kola Superdeep Borehole
