<HTML>sandy wrote:
>Litz
>I have no problem being reguarded as a debunker as far as
>geopolymer is concerned. In my simple way, I see a debunker
>as someone who opposes a theory or idea. At the moment I am
>opposed to the geopolymer theory, that is why I have been
>looking for natural alternatives. I find out through
>searching that an alternative could well exist for the
>formation of natural zk20. Now whether natural zk20 ever
>formed in those limestone beds, I have no idea, but the
>elements and potential are there.
One needs to look up the zeolite analcite (Na (AlSi2O6)×H2O) and its association with the alteration of volcanics during diagenesis. i.e. volcanic glass...
Didn't Miss. Morris state that volcanic glass was found in the specimen?
Quote:
"Graywackes frequently contain aphanitic and glassy volcanic rock fragments that, as a group, are very unstable chemically and react readily as burial depth and temperature of diagenesis increase. As ready sources of soda, potassia, alumina, and silica, they have no peer among naturally occurring particles. Consequently, many graywackes contain a variety of authigenic minerals, particularly zeolites, that are stable in the temperature-pressure-composition space immediately preceding the greenschist facies of metamorphism." page 356
and
"Zeolite minerals-in sedimentary rocks are almost exclusively authigenic constituents. Therefore their presence can be fully explained in terms of the interaction between aqueous solutions and other types of detrital grains. Field and laboratory studies of many zeolite localities indicate that the interactions are particularly sensitive to variation in temperature, the activity ratios of dissolved species, and the ratio aH2O/aCO2." page 357
Blatt H., Middleton G., and Murray R. (1980) Origin of Sedimentary Rocks, 2nd ed. Prentice-Hall, Englewood Cliffs, NJ, 782 pp.
Archae Solenhofen (solenhofen@hotmail.com)
Archae Solenhofen (solenhofen@hotmail.com)</HTML>