Re: Scientist Says Concrete Was Used in Pyramids

Archae Solenhofen <solenhofen@xxxxxxxxxxx> wrote:

None of these report any unweathered rocks that are so soft they are
going to fall apart when saturated in water overnight.

So there is no limestone rich in kaolin clay at this site?

[...] The
rocks claimed above to disaggregate in water were saturated in water
for hundreds of thousands of years in both micro and macro porosity.
It did not turn into mud then... its certainly not going to turn into
mud now.

Again, I'm not a specialist and I don't follow some parts of your
reasoning. I need some clarification for my understanding.
When loose limestone is undersea, is it automatically soaked with water?
Doesn't the pression help to maintain the stone in place?


As for Gauri (1984), which can be read in the link below, no where
does he say that the rocks of Member II in the Sphinx enclosure are
fragile to the point where they disaggregate in water in the timeframe
suggested by Davidovits. Gauri & Bandyopadhyay (1999) give the
durability factor values that Gauri and others have calculated for the
7 beds of Member II. The weakest bed portions are 2i, 1i, and 3i and
the rest of them are considerably harder, which is clearly reflected
in their susceptibility to weathering and erosion. Beds are 2i, 1i,
and 3i contain less than 0.76% clay minerals, see below. I should
point out that Morris (1994) claims that bed portion 1i was 12 feet
thick (that is certainly not even remotely the case see photo below)
and contained 5-10% kaolinite. Gauri & Bandyopadhyay (1999), tell us
on page 198 that X-ray diffraction of the sand and silt fraction of
the rocks indicates only quartz being present. Now take a look at
Table 2 in Gauri (1984) that means that the clay fraction in almost
all beds makes up less than 1% of the rock as kaolinite and illite
(with kaolinite being predominate, and some montmorilloinite is
present in bed 3 only). Montmorilloinite is the only clay of the 3
clay minerals present that would expand on hydration and influence
stone disintegration (Gauri & Bandyopadhyay 1999). Since there is not
much of it in these rocks (as well as kaolinite for that matter) it
plays very little role in influencing durability factor. If you're not
sure what beds we are discussing here they are illustrated on these
photos of the south wall of the Sphinx enclosure and the Sphinx's
chest.

I understand these layers are on the Giza plateau itself. Are these the
very same layers of limestone in the Wadi downward the Giza plateau?

--
Florian

"Tout est au mieux dans le meilleur des mondes possibles"
Voltaire vs Leibniz
.

Relevant Pages

  • Water detection at Gusev crater described: Chemical proof for two wet scenarios (Forwarded)
    ... A large team of NASA scientists, led by earth and planetary scientists ... sciences in Arts & Sciences, and the late Larry A. Haskin, Ph.D., Ralph ... found that the volcanic rocks at Gusev crater near Spirit's ... The rock evidence indicates a scenario where water froze and melted at ...
    (sci.astro)
  • Water detection at Gusev crater described: Chemical proof for two wet scenarios (Forwarded)
    ... Water detection at Gusev crater described ... Using an array of sophisticated equipment on Spirit, Alian Wang, Ph.D., ... sciences in Arts & Sciences, and the late Larry A. Haskin, Ph.D., Ralph E. ... were much like the olivine-rich basaltic rocks on Earth, ...
    (sci.space.news)
  • Re: Owens Two-Phase Model of Earth Expansion
    ... > Assuming that the continents were at the elevations then that they are now. ... These Greenland rocks have been ... >> I asked Moorbath what he thought the ocean levels were at that time. ... >> that release of water would parallel expansion, ...
    (sci.geo.geology)
  • Spirit Adds Clues About History of Rocks in Martian Hills
    ... Spirit Adds Clues About History of Rocks in Martian Hills ... history of layered bedrock in a hill the rover is climbing. ... water," said Dr. Ray Arvidson of Washington University, St. ... In fact, it may turn out that volcanism, water and ...
    (sci.geo.geology)
  • Spirit Adds Clues About History of Rocks in Martian Hills
    ... Spirit Adds Clues About History of Rocks in Martian Hills ... history of layered bedrock in a hill the rover is climbing. ... water," said Dr. Ray Arvidson of Washington University, St. ... In fact, it may turn out that volcanism, water and ...
    (sci.astro)