The so-called "fossil record"

[Idolater]

Half-life carbon-14 c. 5700 years. So modern organic material has 100% of new carbon-14, and 5700 years from now, it will have 50% of that. In another 5700 years it will have 25%, and another 5700 years would bring it down to 12.5%. Another 5700 years would bring it down to c. 6.3%, and that is about 23,000 years. At about 40,000 years all that's left is 0.8% of the original 100%, but even this is detectable in carbon-14 laboratories.

 

[marke]

Half-life carbon-14 c. 5700 years. So modern organic material has 100% of new carbon-14, and 5700 years from now, it will have 50% of that. In another 5700 years it will have 25%, and another 5700 years would bring it down to 12.5%. Another 5700 years would bring it down to c. 6.3%, and that is about 23,000 years. At about 40,000 years all that's left is 0.8% of the original 100%, but even this is detectable in carbon-14 laboratories.

The unknowns in dating include original carbon content of old specimens and the possibility of varying rates of decay due to unknown factors in the ancient past.

 

[Idolater]

The unknowns in dating include original carbon content of old specimens and the possibility of varying rates of decay due to unknown factors in the ancient past.

Right. idk what factors might accelerate for example radioactive decay of rocks, or carbon for that matter, but it's possible.

 

[Derf]

Right. idk what factors might accelerate for example radioactive decay of rocks, or carbon for that matter, but it's possible.

Less carbon 14 in the atmosphere when the dinosaurs were alive would skew the results to the older side.