The age of a rock |
|
The 238U decay series. The final stable lead isotope is 206Pb. The ratio of 238U to 206 Pb gives the age of the rock.
The current best estimate of the age of the solid crust of the Earth is 4.55±0.02 billion years. |
The age of a rock |
|
The 238U decay series. The final stable lead isotope is 206Pb. The ratio of 238U to 206 Pb gives the age of the rock.
The current best estimate of the age of the solid crust of the Earth is 4.55±0.02 billion years. |
