Carbometric dating dinosaur

However, the method used by Simonetti and his colleagues determined that the New Mexico plant eating dinosaur was alive roughly 700,000 years after the surmised giant extinction event.Although the challenge to the accepted dinosaur extinction model has received the most attention, Simonetti believes that the dating method described in the paper is especially significant.

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If there are too many or too few neutrons, the atom is unstable, and it sheds particles until its nucleus reaches a stable state.Antonio Simonetti, a research associate professor in the Department of Civil Engineering and Geological Sciences at the University of Notre Dame, is the coauthor of an important new paper describing a novel method for age dating dinosaur fossils.Simonetti and colleagues from the University of Alberta used a U-Pb (uranium-lead) dating technique to analyze a fossilized dinosaur bone discovered in New Mexico.The current method paleontologists use to date dinosaur fossils is a technique called relative chronology.The method estimates a fossil’s age relative to the known age of deposits of sediment in which it was found.The explosion, likely caused by an object about 6 miles (10 km) across, would have released as much energy as 100 trillion tons of TNT, more than a billion times more than the atom bombs that destroyed Hiroshima and Nagasaki.“We’ve shown the impact and the mass extinction coincided as much as one can possibly demonstrate with existing dating techniques,” researcher Paul Renne, a geochronologist and director of the Berkeley Geochronology Center in California, told Live Science.

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