Creation radioactive dating
One is by groundwater contamination, which brings atmospheric carbon-14 into underground systems.
This would be particularly effective at bringing carbon-14 into coal.
The rocks have been dated at around 1.5 billion years, while the RATE team determined a helium diffusion (outgassing) age of only 6,000 years.
A good critique of the RATE helium diffusion dates is given at Helium Diffusion in Zircon: Flaws in a Young-Earth Argument, Part 1 (of 2).
Hebert mentioned a few commonly-used YEC examples of radiometric dates which do not conform to reasonable old-Earth interpretations. The resultant dates for mineral and whole-rock samples ranged from 0.34 to 2.8 million years old, even though the dacite was a product of an eruption that occurred in 1986.
That story includes chapters that speak of processes that require lengthy periods of time, such as the cooling and crystallization of magma to form igneous rocks, weathering of rocks to produce ancient soils (paleosols) and unconformities; growth of fossil reef organisms (as well as other complete fossilized ecosystems), and transformation of rocks by metamorphic processes.
Volcanoes are complex features representing numerous eruptions, coral reefs do not grow in just a few days (especially in muddy floodwaters), and many metamorphic processes involve the extremely slow diffusion of ions through solid crystalline structures.
One of these was the study done in the 1990s by Steven Austin of the Institute for Creation Research, in which ICR submitted samples from the 1986 dacite lava dome eruption of Mt. The YEC reasoning on this is that if radiometric dating cannot yield a “common sense” date on a sample of known age, how can scientists trust it for dating any rocks?
There are several good critiques available of this YEC argument about the 1986 Mt St Helens samples (such as this article by Kevin Henke) , so I will only summarize: Dr.
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It is true that any traces of original carbon-14 in a sample should be gone after 100,000 years.