Transcript Absolute Dating

I. Absolute Dating
Absolute dating
any method of
measuring the age of
an event or object in
years.
a.
Paleontologist can date
many types of igneous
rocks as well as recent
organic fossils.
Using Half-lives to Date Fossils
II. Radiometric Dating

A. Radioactive Decay Process in which a
radioactive isotope breaks down into a
stable isotope of the same or another
element.
II. Radiometric Dating

B. Radiometric dating Scientist determine the age of
an object by estimating the percentages of
radioactive (parent) to stable isotopes (daughter).
PBS Radiometric Dating
Explanation
C. Half-life

Half-life the time needed for half of a
sample of radioactive substance to
undergo radioactive decay.
Radioactive Decay
Using Half-lives to Date
Fossils
Evidence of Events in Earths history web simulation