Romulus the 2nd Wrote:
-------------------------------------------------------
> Origyption wrote:
>

Quote
It's just a hardened limestone mud stain
> confirming that the structure is very old, has an
> inclined portal to the outside that certainly
> could have collected rain, condensation,etc. that
> simply could have drained downward and carried
> some of the limestone powder dissolved into it.
> Why is that such a difficult "mystery" for
> some?
>
>

>
> Because the stains also appear in the QC-shafts.
> There is no evidence that these shafts were open
> in ancient times.


I'm only referring to the KC shaft stains that show up in Edgar's photography and to a lesser extent in Rutherford's.

Bright irregular reflections around the bottom of the walls could simply be the result of peripheral chipping the resulted from hacking up the original floor before the material was removed. I believe it's unlikely that the floor we see in the QC was the original exposed surface. Likewise for other exposed and hacked up surfaces we see in G1 today.