This statement is possibly surprising in view of the fact that almost any modern writer can produce a geologic timetable [based on evolutionary theory applied to "index fossils") that gives precise datings and lengths of the eras and systems and even of some of the smaller subdivisions . These figures have been obtained in various remarkable ways. ]"Ultimately, however, they are tied to three [radioactive] dates based on atomic disintegration: (1) 60 million years, the age of the pitchblende at Central City, Colorado; (2) 220 million years, the age of the pitchblende at St.Joachimstal, Bohemia; and (3) 440 million years, the age of the uranium-bearing shale at Gullhogen, Sweden.
This is the crucial point: it is claimed by some that an old earth supports evolutionary theory and by implication removes the need for biblical creation.
This challenge is mainly headed by Creationism which teaches a young-earth (YE) theory.
A young earth is considered to be typically just 6,000 years old since this fits the creation account and some dating deductions from Genesis.
The crucial point here is: if YE theory can be established scientifically, then macroevolutionary theory falls!
Accepted Dating Methods Here we outline some dating methods, both absolute and relative, that are widely accepted and used by the scientific community.