More Bad News for Radiometric Dating
Many people think that radiometric dating has proved the Earth is millions of years old. Even the way dates are reported e. However, although we can measure many things about a rock, we cannot directly measure its age. For example, we can measure its mass, its volume, its colour, the minerals in it, their size and the way they are arranged. We can crush the rock and measure its chemical composition and the radioactive elements it contains. But we do not have an instrument that directly measures age.
Refuting the Critics: Radiometric Dating
Here I want to concentrate on another source of error, namely, processes that take place within magma chambers. To me it has been a real eye opener to see all the processes that are taking place and their potential influence on radiometric dating. Radiometric dating is largely done on rock that has formed from solidified lava. Lava properly called magma before it erupts fills large underground chambers called magma chambers.
Radiometric dating finds Earth is 2. This amazing fact seemed like alchemy to many, but American chemist Bertram Borden Boltwood was intrigued. Boltwood studied this concept of "radioactive series," and found that lead was always present in uranium and thorium ores. He believed that lead must be the final product of the radioactive decay of uranium and thorium. A few years later, in , he reasoned that since he knew the rate at which uranium breaks down its half-life , he could use the proportion of lead in the uranium ores as a kind of meter or clock.