The thesis said:
There are many examples where the dating methods give "dates" that are wrong for rocks of known age. One example is K-Ar "dating" of five historical andesite lava flows from Mount Nguaruhoe in New Zealand. Although one lava flow occurred in 1949, three in 1954, and one in 1975, the "dates" range from less than 0.27 to 3.5 Ma.[14]
Again, using hindsight, it is argued that "excess" argon from the magma (molten rock) was retained in the rock when it solidified. The secular scientific literature lists many examples of excess argon causing dates of millions of years in rocks of known historical age.[15] This excess appears to have come from the upper mantle, below the earth's crust. This is consistent with a young world -- the argon has had too little time to escape.[16] If excess argon can cause exaggerated dates for rocks of known age, then why should we trust the method for rocks of unknown age?
Other techniques, such as the use of isochrons,[17] make different assumptions about starting conditions, but there is a growing recognition that such "foolproof" techniques can also give "bad" dates. So data are again selected according to what the researcher already believes about the age of the rock.
Geologist Dr. Steve Austin sampled basalt from the base of the Grand Canyon strata and from the lava that spilled over the edge of the canyon. By evolutionary reckoning, the latter should be a billion years younger than the basalt from the bottom. Standard laboratories analyzed the isotopes. The rubidium-strontium isochron technique suggested that the recent lava flow was 270 Ma older than the basalts beneath the Grand Canyon -- an impossibility.
Different Dating Techniques Should Consistently Agree
If the dating methods are an objective and reliable means of determining ages, they should agree. If a chemist were measuring the sugar content of blood, all valid methods for the determination would give the same answer (within the limits of experimental error). However, with radiometric dating, the different techniques often give quite different results.
In the study of the Grand Canyon rocks by Austin, different techniques gave different results.[18] Again, all sorts of reasons can be suggested for the "bad" dates, but this is again posterior reasoning. Techniques that give results that can be dismissed just because they don't agree with what we already believe cannot be considered objective.
In Australia, some wood found the Tertiary basalt was clearly buried in the lava flow that formed the basalt, as can be seen from the charring. The wood was "dated" by radiocarbon (14C) analysis at about 45,000 years old, but the basalt was "dated" by potassium-argon method at 45 million years old![19]
Isotope ratios or uraninite crystals from the Koongarra uranium body in the Northern Territory of Australia gave lead-lead isochron ages of 841 Ma, plus or minus 140 Ma.[20] This contrasts with an age of 1550-1650 Ma based on other isotope ratios,[21] and ages of 275, 61, 0,0,and 0 Ma for thorium/lead (232Th/208Pb) ratios in five uraninite grains. The latter figures are significant because thorium-derived dates should be the more reliable, since thorium is less mobile than the uranium minerals that are the parents of the lead isotopes in lead-lead system.[22] The "zero" ages in this case are consistent with the Bible.
??????????
uo