@gondwanalon
“Carbon dating doesn’t work for calculating the Earth’s age.”
Absolutely correct, which is why it’s not used to date the Earth. Carbon 14 dating is accurate for periods up to about 60,000 years.
“The degradation of uraninite (a complex of uranium oxide, (or ellesworthite) is one of the scientifically accepted methods. As aoon as the uraninite crystal forms, it very very slowly starts breaking down at a uniform rate of disintegration in which lead is measured and equated to time.”
Here’s a good explanation of this process, why it’s accurate, and how it has its own error correction.
I thought it was important to clarify this because many creationists harp on radiocarbon dating without having the vaguest idea of what they are talking about- they actually think that C14 data is used to calculate the Earth’s age! Just wanted to make it clear (as I think you were trying to do) that this is never done. There are many types of radioactive dating; all with their own best uses and time frames.