lakeview rud, on 21 November 2012 - 03:21 PM, said:
Folks, seems were getting a bit off topic (How old is the Sphinx?). I would like to see some explanation of the apparent evidence of water erosion (vertical cuts) on the body of the Sphinx that makes at least some scientific sense. . SInce the Sphinx was evidently buried up to its neck for much of its existence it would make sense that this erosion dates from way back in its past. Another way to check on this would be to remove some of the cosmetic surgery (more operations than Joan Rivers?) and see if there is any evidence of this erosion beneath. Alledgedly there is some repair work on it that dates to the 4th dynasty and that would be a good place to start.
The topic has been discussed to death and beyond at UM, and in some detail within this thread, so it's not surprising that the discussion has wandered into other topics.
But in summary a much older age for the Sphinx was the pet project of a geologist named Robert Schoch. As far as I'm aware he has garnered no support from the scientific community, fellow geologists included. His fan base consists of folks like J.A. West, so take that for what it's worth.
Other geologists have commented on Schoch's theory, as well as on less-extreme theories posited by others. The most authoritative is probably the geologist
James Harrell, whose expertise is the archaeogeology of Egypt. You can visit his own website
here. Harrell's theories are much more grounded in plausibility, whereas Schoch approached the issue with a painfully narrow lens in which he failed to take into account other extant evidence at the Giza Plateau.
Additionally, the extensive work of the
Giza Plateau Mapping Project has more or less established beyond a reasonable doubt that the Sphinx was carved by Khafre as an integral part of his pyramid complex, which means what we see today of the Sphinx dates to around 2500 BCE.