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Thus all K-Ar and Ar-Ar "dates" of volcanic rocks are questionable, as well as fossil "dates" calibrated by them.
Ar Analyses of Historic Lava Flows.” Nevertheless, this is no way changes the argument in question.
If one of these protons is hit by a beta particle, it can be converted into a neutron.
The quantity of potassium in a rock or mineral is variable proportional to the amount of silica present.
Therefore, mafic rocks and minerals often contain less potassium than an equal amount of silicic rock or mineral.
This could even be the case when the K-Ar and Ar-Ar analyses yield "dates" compatible with other radioisotopic "dating" systems and/or with fossil "dating" based on evolutionary assumptions.
Furthermore, there would be no way of knowing, because the Ar not from radioactive decay, except of course by external assumptions about the ages of the rocks.
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How do they know the decay rate has been the same for millions or billions of years? A portion of this sample was crushed, sieved, and processed into a whole rock powder as well as four mineral concentrates. " Design Science Association, retrieved Dec 19, 2012, [ See also Hans-Joachim Zillmer, Volcanic (igneous) rock, according to evolutionists, is the best way to date ages with K-Ar dating because, theoretically, when a volcano erupts, all the argon gas is released from the rock, and resets the clock back to zero.