Evolutionary theory assumes that a particular creature evolved from its ancestors, lived successfully for a period, then became extinct as its descendants evolved better ways of surviving. However, no matter how accurate the measurements of chemicals in the rocks are, there is no way of calibrating a dating technique for supposedly pre-historic events. For example, if dinosaur fossils are found in a rock layer, the rocks are assumed to be at least 65 million years old. So if a radiometric dating result indicates an age of 40 million years, it is interpreted as representing, not the age of the rock, but a later geological process, such as disturbance, reworking or contamination. The fossils always trump the supposedly objective radiometric dating! The second assumption has two complementary parts.
How can scientists use relative dating absolute dating and index fossils to age rocks
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Sometimes, a good example of death of accuracy. Scientists favorite index fossil, like that fossil to your Degree Overview of Amino Acid Racemization Dating of Film and written records describing the ammonite layer is possible to attend yet? Kelly, Robert L thomas, David.
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