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Methods of dating ancient fossils

The Age of Dinosaurs was so many millions of years ago that it is very difficult to date exactly. Scientists use two kinds of dating techniques to work out the age of rocks and fossils. The first method is called relative dating. This considers the positions of the different rocks in sequence in relation to each other and the different types of fossil that are found in them.
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Chronological dating

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How to Date Fossils: 7 Steps (with Pictures) - wikiHow

Archaeology is one of Kelley's great passions. He's read many books on the subject, as well as every issue of "Archaeology" since In times past, things that appeared old were simply considered old, maybe as old as the story of Atlantis, the biblical flood or the earth itself, but nobody knew for certain how old anything was. Then in the early twentieth century scientists began using absolute dating techniques, perhaps the most prominent of which is carbon It would be hard to imagine modern archaeology without this elegant and precise dating method. Now using carbon and other modern dating techniques we have a very good idea how old things are.
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Dating Fossils in the Rocks

Given that so few organisms ever become fossilized, any anthropologist or fossil hunter will tell you that finding a fossil is extremely exciting. But this is just the beginning of a fantastic mystery. With the creative application of scientific methods and deductive reasoning, a great deal can be learned about the fossilized organism and the environment in which it lived, leading to enhanced understanding of the world around us. Context is a crucial concept in paleoanthropology and archaeology. Objects and fossils are interesting in and of themselves, but without context there is only so much we can learn from them.
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Using the cyclotron, carbon — 14 fossils could be used for carbon as old as , years, while samples containing radioactive beryllium could be dated as far back as 10 — 30 million years. A newer method of radioactive tracing involves dating use of a new clock, based on the radioactive decay of uranium to protactinium. Cite this article Pick a style below, and copy the text for your bibliography.
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