Dating dinosaurs bones How do scientists determine the age of dinosaur bones?

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Collagen makes up much of the bone scaffolding, elastin is wrapped around blood vessels and hemoglobin carries oxygen inside red blood cells. To determine the ages of these specimens, scientists need an isotope with a very long half-life. There has been wide agreement among paleontologists that dinosaurs became extinct roughly When paleontologist Mary Schweitzer found soft tissue in a Tyrannosaurus rex fossilher discovery raised an obvious question -- how the tissue could have survived so long?

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The bone was 68 million years old, and conventional wisdom about fossilization is that all soft tissue, from blood to brainsdecomposes. If, as generally believed, dinosaurs have been extinct for 65 million years, there should not be one atom of Carbon left in their bones. Carbonates are only one of many potential sources of exogenous carbon, and other sources are not as easily removed by treatment with acetic acid.

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What we actually observe, however, fits very well with the biblical account of creation. Hadrosaur 1, a duck billed dinosaur. After all, she says, what God asks is faith, not evidence. Almost any place where the forces of erosion - or dating dinosaurs bones crews - have carved through sedimentary rock is a good place to look for rock layers stacked up in the exposed rock face. More crap from "NatuaLegion".

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The objects were made of clay and stone, varying in size from a few inches long to statues three feet high, and dinosaur objects four to five feet long. He was assigned to be the only instructor on it, with responsibility for control and supervision of the instrument.

Carbon dating at this dating dinosaurs bones is certainly the very best.

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The theropod of the Jurassic forests lives on in the goldfinch visiting the backyard feeder, the toucans of the tropics and the ostriches loping across the African savanna. The result is like a radioactive clock that ticks away as unstable isotopes decay into stable ones.

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Something must have gone wrong with the equipment, so we can throw that date out too. Mark Armitage has a MS degree in biology and has been a microscope scientist microscopist for 30 years.

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The finding has caused a significant stir in scientific circles. Enter your email address.

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Print this page Cite this page. The half-life of C is years. While the oldest known rocks on Earth are about 3.

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Mark's micrographs have appeared on the covers of eleven scientific journals, and he has many technical publications on microscopic phenomena in such journals as American Laboratory, Southern California Academy of Sciences Bulletin, Parasitology Research, Microscopy and Microanalysis, Microscopy Today and Acta Histochemica, among others. You can see the layers of sedimentary rock.

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Carbondated dinosaur bones are less than 40, years old. To learn more about dating fossils, follow this link and click the yellow "Dating Methods" tab at the bottom of the web page. Cherkinsky and Christine Chataigner again explain this method in Radiocarbon journal,Vol 52, Nr.