K-Ar Processing. When a scientist needs to measure the amount of Argon that is trapped in a rock, the first step in the process is to get the Argon out of the rock. So you can look at the ratio. Further information: This way of doing science is most prominent when the evidence is fragmentary at best. And that's why the argon is more interesting, because the calcium won't necessarily have seeped out.
There is no proof for either position.
Potassium-Argon Dating Methods
Carbon 14 dating 2. What happens if the age falls into the range he expected? Potassium—argon dating has made it possible to establish that the earliest remains of man and his artifacts in East Africa go back at least 2, years, and probably further. This is exactly how it's doneand all of it comes down to the circular reasoning dating methods used for fossils dating rocks and rocks dating fossils. K-Ar dating.