It Was Different
They quickly realized they had made a mistake. At the very least, this may not be the case in the Kola Peninsula. Following this revelation, a series of additional discoveries occurred, leading them to uncover something much more amazing than they had anticipated.
It Was Still Granite
Researchers discovered granite even at the borehole’s deepest point! After considerable thought, they concluded that the seismic wave change was caused by metamorphic changes in the rock rather than a transition to basalt.