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    Distinguish between relative and absolute dating of fossils

    He holds a Bachelor of Science, postgraduate diplomas in journalism and website design and is studying for an MBA.

    Sedimentary rocks form from soil and silt carried and deposited by moving water.

    Absolute age can be determined by using radiometric dating. Look at the diagram below and then answer this question: We can date the layers of volcanic ash using radiometric dating, but how can we determine the absolute age of fossil A?

    You have to date the volcanic layer above and below the fossil layer.

    Stratigraphy is the study of sedimentary rock layers.

    According to the law of superposition, as long as an area remains undeformed by outside forces, the deeper you go down through the layers of rock, the older they are.

    Adrian Grahams began writing professionally in 1989 after training as a newspaper reporter.

    How do we know this and how do we know the ages of other events in Earth history?

    The age of the fossil will be an age range between the ages of the two volcanic layers. The diagram below shows a portion of the Geologic Time Scale.

    NSF Postdoctoral Research Fellow at Stony Brook University.

    Chronometric dating, also known as chronometry or absolute dating, is any archaeological dating method that gives a result in calendar years before the present time.

    Archaeologists and scientists use absolute dating methods on samples ranging from prehistoric fossils to artifacts from relatively recent history.

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