Doher is L. Imogene Doher the author of Geological Survey Circular
830 - "Palynomorph Preparation Procedures Currently Used in the
Paleontology and Stratigraphy Laboratories." U.S. Geological Survey
> I don't knowe who Howe consulted, but any palynologist knows pollen is not
> silicified. It is preserved because the waxy material of which the exine
> is composed is practically indestructible by any chemical or physical means
> apart from temperature. His comment makes no sense.
I read that sporopollenin is best preserved in anaerobic-base
environments, however can survive in some anaerobic/acid
environments. It are least likely to survive in an oxidating
environment like weathered/red porous rocks/soils. My question is this,
if sporopollenin is quite invulnerable to most acids, why is it easily
weathered in an oxidizing environment?
And, if it is in an (wow, 5 two letter words in a row!) oxidating,
growndwater enviroment, what is to keep the sporopollenin from becoming
silicified? (assuming the oxidating environment contained disolved
silicates.)
Allen Roy
Grand Canyon Creationary Geology Tours, see:
http://www.tagnet.org/anotherviewpoint/
Daniel Prophecy Studies:
http://www.tagnet.org/anotherviewpoint/Daniel