Radiometric dating moon rocks

Taken as a whole, these data indicate that the Earth’s history extends backward from the present to at least 3.8 billion years into the past.For example, scientists search for and date the oldest rocks exposed on Earth’s surface.You will then be sent a link via email to verify your account.If you are not a member or are having any other problems, please contact customer support.

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.Using this technique, scientists could, for example, analyze a sample from Earth’s crust, figure out the quantities of uranium and lead, plug those values along with the half-life into a logarithmic equation, in order to compute the age of the rock.Over the decades of the 20th century, scientists documented tens of thousands of radiometric age measurements.

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