Abandoning The Project
They made the decision to abandon the project because they were confident that the equipment would fail under such conditions. At that point, it had been 22 years since they had first started digging.
Abandoning The Project
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The Kola Superdeep Borehole
The researchers learned a couple of fascinating things before they sealed up what has become known as the Kola Superdeep Borehole. For one thing, they found small fossils of marine plants around four miles deep.
The Kola Superdeep Borehole
