In my comment on the last post re: the Marbles.... I mentioned that if it was staining you'd get a Plane bark effect as the freeze-thaw took layers off... that is illustrated perfectly in pic3, above, but.... what I am now trying to get my head around is the fact that earlier flaked areas now seem to be turning brown... when the granite is no longer covered by the sandstone. Hmmmmmm?
4 comments:
Happy Easter S&S
T&P
In my comment on the last post re: the Marbles....
I mentioned that if it was staining you'd get a Plane bark effect as the freeze-thaw took layers off...
that is illustrated perfectly in pic3, above, but....
what I am now trying to get my head around is the fact that earlier flaked areas now seem to be turning brown...
when the granite is no longer covered by the sandstone.
Hmmmmmm?
In my experience everything gets stained red in that desert country.
Windblown iron-rich grains of the original sandstone?
Post a Comment