Radiocarbon dating decay
They will argue that the clock was not reset if the age is too old, or that isotopes were selectively removed if the age turns out to be too young.
In the study on the Hawaii lava flow cited above, it was argued that entrapment of excessive amounts of argon gas had made the samples appear older than they were.
For more on this subject, see the video Bones in Stones i. Ogden III, "Annals of the New York Academy of Science," 288 (1977): 167-173.
Archaeologists use the exponential, radioactive decay of carbon 14 to estimate the death dates of organic material.
Some scientists argue that the magnetic field of the earth has declined over time.
c) Atmospheric carbon forms just 0.0005% of the current carbon reservoir—99.66% of the earth's carbon exists in limestone, 0.31% in oil and gas, and 0.02% in coal.
What do rock layers on the Earth's crust tell us about our origins and the age of the earth? Specimens would then look much older than they actually are.d) Even if the rate of decay is constant, without knowledge of the exact ratio of carbon-12 to carbon-14in the initial sample, the dating technique is subject to question.Elements can be transported into a sample or leach out of a sample.Scientists will reject theories about the age of the earth that do not conform to the norm.