Absolute dating dinosaurs

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What ages of samples can be dated using carbon-14 age dating
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What ages of samples can be dated using carbon-14 age dating
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Comments 1

Doujora

11/1/2018

Whether there are analogues?

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DK Science: Dating Fossils

January 27, University of Alberta researchers determined that a fossilized dinosaur bone found in New Mexico confounds the long established paradigm that the age of dinosaurs ended between That means this particular plant eater was alive about , years after the mass extinction event many paleontologists believe wiped all non-avian dinosaurs off the face of earth, forever. Heaman and colleagues used a new direct-dating method called U-Pb uranium-lead dating. A laser beam unseats minute particles of the fossil, which then undergo isotopic analysis. This new technique not only allows the age of fossil bone to be determined but potentially can distinguish the type of food a dinosaur eats.

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.

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Fossils themselves, and the sedimentary rocks they are found in, are very difficult to date directly. These include radiometric dating of volcanic layers above or below the fossils or by comparisons to similar rocks and fossils of known ages.

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How Do Scientists Determine the Age of Dinosaur Bones?

To know if carbon dating is accurate, we would have to know how much carbon was in the atmosphere in the beginning, and also how long it has been increasing, or decreasing. Since no one was there, no one knows for sure. It's like trying to figure out how long a candle has been burning, without knowing the rate at which it burns, or its original size. Living penguins have been carbon dated and the results said that they had died 8, years ago! This is just one of many inaccurate dates given by Carbon dating.

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