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Potassium-Argon Method:
is a geologic
dating method relying on the percentage of potassium
in a specimen
that has radioactively
decayed to argon.
This method was used on samples
from the Mount St. Helens disaster.
Dacite.(a
fine grained rock light in color).was
retrieved and analyzed by Geochron Laboratories of Cambridge, MA, a professional
radioisotope
dating laboratory. The laboratory was not told that the specimen was 10
years old from the lava dome at Mount St. Helens.
The results ranged from 0.35-2.8
million years!
It is conceivable
that solidification of magma
does not reset the radioisotope clock to zero. It could be that some argon-40
is combined into newly formed minerals giving the aspect of significant
age. It should also be noted that there is inconsistency between various
samples taken from the same rock. Many other examples of this method's
inaccuracy abound.
