Do you have approximate dates on some of this information? 1) When Nile flowed out of the Niger? 2) When Lake Chad was the size of the Caspian Sea? 3) When the Med. flooded creating a Nile sea inlet? 4) When the geophysical even near the Bayuda Volcanic Field may have occurred?
Somewhere deep in my files I do, and because the study was published in 1982, I would assume at least some of those estimates have been updated.
How badly do you need this information?