Let us imagine that the date reported by the lab was 150.7 ± 2.8 million years.
Also, because Earth formed as part of our sun’s family of planets – our solar system – scientists use radiometric dating to determine the ages of extraterrestrial objects, such as meteorites.These are space rocks that once orbited our sun, but later entered Earth’s atmosphere and struck our world’s surface.This work gave rise to a process known as radiometric dating.This technique is based on a comparison between the measured amount of a naturally occurring radioactive element and its decay products, assuming a constant rate of decay – known as a half-life.Many great thinkers throughout history have tried to figure out Earth’s age.
For example, back in 1862, Lord Kelvin calculated how long Earth might have taken to cool from its original molten state.
He concluded that Earth was born 20 to 400 million years ago.
Today’s scientists believe that answer is incorrect, but Kelvin’s calculations were in being based on logical thinking and mathematical calculation.
Likewise, scientists use radiometric dating to determine the ages of moon rocks, obtained by astronauts.
Taken together, these methods give results that suggest an age for our Earth, meteorites, the moon – and by inference our entire solar system – of 4.5 to 4.6 billion years old.
It is clear that the sedimentary rock was deposited and folded before the dyke was squeezed into place.