beatles wrote:
what i am ASSUMING is that in the deep soil at stonehenge a concentration of wheat proteins, lipids, and or other residue must be detectable by some means.
That's part of the problem I suspect. The soil isn't deep. I'm not sure exactly how deep, but it's usually described as a thin layer over the chalk. Then there's the fact that the current soil is fairly new, as it was eroded away during the mid 20thC. Have a look at some of the photos from before the fences were erected and you'll see what I mean.