It's surprising that first 40m cores took so long to be obtained and studied.
This explanation, though the cycle would be every 12h instead of yearly, would be analogous to the Nile phenomenon and the rise of Egyptian civilization, which it predated.
It's surprising that first 40m cores took so long to be obtained and studied.
This explanation, though the cycle would be every 12h instead of yearly, would be analogous to the Nile phenomenon and the rise of Egyptian civilization, which it predated.