If you read further in my second potassium-argon dating page: Dalrymple states: Earth Planet Sci Lett ;6: Also, if there is a partial pressure of Argon surrounding the rock, then, as experiments indicate, Argon might even enter the rock during its cooling to increase its content of Argon. Or might we suggest that molten rock was intruded at very high levels of pressure.
The concentration of argon used are a magnitude far beyond anything the atmosphere will ever have.
We could ask ourselves which of the details of this story have been observed. Unfortunately, with fragmentary data, the artifact that might falsify a theory is extremely hard in coming or it could easily be overlooked. Scientific Theology by Paul A. But this is not true either, the weight of evidence does not prove anything. Skinner, only 10 could be used. They usually make a small atmospheric correction for this.