Having had (and taught) Earth Sciences (and anthropology) there are some things you might want to consider.
Originally posted by SLAYER69
I know there have been a few threads on the topic of the Age of the Sphinx. In this thread I'll try to bring a new angle so as to make it unique.
I'll try to hit on something I've never heard discussed and may have been over looked by those who support a much older Sphinx theory.
Not so old. In fact, what you're covering is covered by folks who considered the age of the Sphinx. The difference is that they have some data you
#1) You're assuming that all the limestone came from the same quarry AND was found at the same level (hence is the same limestone.)
#2) You're not aware of the properties of the different layers of limestone.
#3) You're assuming that all the limestone was set in place by orienting it in the same way it was found in the ground and that the older layers were
put on the bottom of walls and so forth.
Apologies if I sound cranky, Slayer. I have spent the whole day explaining this to 8th graders (who are flunking science and are in summer school)
and the explanation involved hiking six classes out to show them the geology so I'm very hot and very tired and very very very cranky from noisy and
The quarrymen started quarrying on the top layers of limestone. This is "newer" limestone. It was laid down last (this isn't the right date but
I'm tired and hot and cranky, so we will pretend that this top layer is 100 million years old.) The limestone is in fine grained layers and the
layers change with the composition of the ocean floor at that time. It takes (making up a number just to give reference because I'm really too tired
to go and look it up and I apologize for the sloppy science) 1,000 years of ooze to make limestone an inch thick -- IN SOME PLACES. That's important
because where you get corals or other types of material, limestone can form faster (old reefs built higher, and I know part of the Giza plateau (not
sure if the sphinx is involved or if it's further along) is an old reef.
Each of those layers is chemically different than the others.
Oceans change dramatically but changes like deep water (where limestone forms from ooze) to shallow water (where it forms from corals and shells) take
place over a timescale closer to a million years.
Furthermore, limestone forms in sheets. If you stick the block so that the "side wall" is actually a "bottom sheet" that formed out of very hard
limestone (in other words, you stick it sideways when you place it) you get an artificially harder surface than if you left it in the ground.
Anyway. You can't tell a thing unless you know:
* which part of the quarry the stone came from (elevation, GPS location)
* whether it was stacked sideways, upside down, right side up (they didn't care. They just wanted blocks for building. It didn't matter to the
masons which way you put it in.)
* the orientation of the grain (sheets) of limestone. Blocks also tilt and you can cut a nice block where the grain is actually running
* what type of limestone it is (ooze based, shell based, reef based, etc.)
Rocks aren't "rocks." They're very complex and dynamic things and my poor tired self really hopes that you might understand this even without me
hopping up and down in front of you, grabbing up fossils to show how different two limestones are that lie right next to you and trying to excite you
about the difference between the deep waters and the shallow waters and show you how Texas shook and twisted and that the limestone slopes down and
doesn't lie flat on the ground.
Apologies if I'm cranky -- I'm so hot and tired.
I wish I could show you the rocks.
Even ordinary rocks right where you live are amazing and tell so many stories. But I think only geologists stop to listen to the beautifully complex