Dating geological specimens john mayer dating jennifer aniston
This is what archaeologists use to determine the age of human-made artifacts. The half-life of carbon-14 is only 5,730 years, so carbon-14 dating is only effective on samples that are less than 50,000 years old.Dinosaur bones, on the other hand, are millions of years old -- some fossils are billions of years old.Dating schemes based on rates of radioactivity have been refined and scrutinized for several decades.The latest high-tech equipment permits reliable results to be obtained even with microscopic samples.
Other critics, perhaps more familiar with the data, question certain aspects of the quality of the fossil record and of its dating.In the past 150 years they have not found any fossils that Darwin would not have expected.New discoveries have filled in the gaps, and shown us in unimaginable detail the shape of the great ‘tree of life’.Unfortunately, these elements don't exist in dinosaur fossils themselves.Each of them typically exists in igneous rock, or rock made from cooled magma.
For example, creationist writer Henry Morris [Morris2000, pg.