Radiometric dating meteorites Talk to girls free on cam
he generally accepted age for the Earth and the rest of the solar system is about 4.55 billion years (plus or minus about 1%).This value is derived from several different lines of evidence.And from the slope of the line we can compute the amount of time which has passed since the pool of matter became separated into individual objects.
If the solar system formed from a common pool of matter, which was uniformly distributed in terms of Pb isotope ratios, then the initial plots for all objects from that pool of matter would fall on a single point.
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.
Scientists tried to determine Earth’s age via our planet’s layers of rock, which must have been built over time.
You’ve seen these rock layers if you’ve ever observed a cut-away section of a mountain, perhaps because a highway runs through it. In the early part of the 20th century, scientists still weren’t sure.
In the early part of the 20th century, scientists still weren’t sure how old Earth is.