Radioactive dating

Boltwood concluded that lead was the final product in the radioactive decay series beginning with uranium and thorium. This understanding paved the way for the development of radioactive dating methods to determine the age of geological samples.
 Bertram Borden Boltwood United States 1907 Radioactive dating

Boltwood concluded that lead was the final product in the radioactive decay series beginning with uranium and thorium. This understanding paved the way for the development of radioactive dating methods to determine the age of geological samples.