Three types of carbon occur naturally in living material: C12, C13 and C14.
Carbon14 (C14) is unstable and present in a very small percentage relative to the other components.
From the mapped field relationships, it is a simple matter to work out a geological cross-section and the relative timing of the geologic events.
His geological cross-section may look something like Figure 2.
Current understanding of the history of life is probably close to the truth because it is based on repeated and careful testing and consideration of data.
The rejection of the validity of fossils and of dating by religious fundamentalists creates a problem for them: Fossil sequences were recognized and established in their broad outlines long before Charles Darwin had even thought of evolution.
Radiocarbon dating has significantly changed humans’ approach to history during the last 50 years.Different methods have their own limitations, especially with regard to the age range they can measure and the substances they can date.A common problem with any dating method is that a sample may be contaminated with older or younger material and give a false age.He then conducted experiments on other samples and realized that the numbers held consistent.For his work, Libby received the Nobel Prize in Chemistry in 1960.