June 6-8, 2012, marked the one hundredth anniversary of the Novarupta- Katmai eruption in southwest Alaska. It was one of the biggest eruptions in recorded history, and the largest since Krakatoa in 1883. A bulk sample from the top of the Novarupta lava dome, collected in July 2009, was age-dated in 2012 using the 40Ar/39Ar method. A key assumption in the method is that an igneous sample has no argon when it solidifies. Environmental conditions were ideal for setting this sample "argon clock" to zero, and atmospheric contamination was accounted for. Yet the 100-year-old rhyolite from Novarupta still gave apparent ages as high as 5.50±0.11 million years old. Bias is introduced to the Ar/Ar method because, prior to analysis, technicians request an age estimate for the sample. Because Scripture, not experimental evidence, is the ultimate authority for Creation researchers, the burden of proof lies with "deep time" historians to explain why anyone should believe radiometric methods determine actual sample ages. Radiometric methods are better suited for interpreting a rock's environmental history. In addition to discussing known environmental effects on argon solubility, the effect of event energy on accelerated nuclear decay is explored as a possible cause of the excess argon.