It wasn't until well into the 20th century that enough information had accumulated about the rate of radioactive decay that the age of rocks and fossils in number of years could be determined through radiometric age dating.
The rates of decay of various radioactive isotopes have been accurately measured in the laboratory and have been shown to be constant, even in extreme temperatures and pressures.
These rates are usually expressed as the isotope's half-life--that is, the time it takes for one-half of the parent isotopes to decay.
Most scientists and many Christians believe that the radiometric dating methods prove that the earth is 4.5 billion years old.
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.
As discussed before, the assumptions influence the interpretation of the data.Radioactive rocks offer a similar “clock.” Radioactive atoms, such as uranium (the parent isotopes), decay into stable atoms, such as lead (the daughter isotopes), at a measurable rate.The discovery gave scientists a tool for dating rocks that contain radioactive elements. Creationists do not necessarily disagree with this concept, but it can only be applied to layers that are found in one location and/or can be determined to have been deposited in a continuous layer over a very wide area. Relative ages are assigned to rocks based on the idea that rock layers lower in the strata were deposited before rock layers that are higher. Relative ages are assigned to rocks based on the idea that rock layers lower in the strata were deposited before rock layers that are higher. Each claims to have discovered how much they really love each other after four weeks apart. In reality, they're both terrified of the single world.Earth Science Geology, the Environment, and the Universe Section 3 Absolute-Age Dating of Rocks Absolute-Age Dating of Rocks Dating Methods, Uses &" /Radiometric Dating Methods, Uses & Your summer with some fun and safe way of reminding them that you’re a real person, that you push forward.