One radioisotope used for the dating of rocks and fossils
The textbooks speak of the radiometric dating techniques, and the dates themselves, as factual information.
Far from being data, these dates are actually interpretations of the data.
robustus: 1.4 - 2.2 million years – very large molars, bones and skull H.
africanus: 2.3 - 3 million years – flatter face, larger molars for plant based diet A.
The half-lives of several radioactive isotopes are known and are used often to figure out the age of newly found fossils.
Different isotopes have different half-lives and sometimes more than one present isotope can be used to get an even more specific age of a fossil.
Among the best-known techniques are radiocarbon dating, potassium-argon dating and uranium-lead dating.
The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.
and is now the principal source of information about the absolute age of rocks and other geological features, including the age of fossilized life forms or the age of the Earth itself, and can also be used to date a wide range of natural and man-made materials.
These must be accepted on faith in uniformitarian and naturalistic frameworks.
Recent research by a team of creation scientists known as the RATE (arth) group has demonstrated the unreliability of radiometric dating techniques.
For since the fathers fell asleep, all things continue as they were from the beginning of creation.” For this they willfully forget: that by the word of God the heavens were of old, and the earth standing out of water and in the water, by which the world that then existed perished, being flooded with water.