earth's age | scienceinfo.net

Australia: 4 years of plowing and destroying rock masses, it is said that it is a very precious item of 4.6 billion years old
A gold hunter spends nearly 4 years breaking the mysterious reddish-brown rock found near the house but to no avail. When brought to the museum, the scientific community said this
Method to determine the age of the Earth
The method of determining age by radioisotope appeared from the late 1940s and 1950s.