Dating the age of dinosaurs

They then used these measurements to estimate an age for the bone.But radiodating cannot proceed without some primary assumptions: the starting conditions of a given sample (e.g., how much of each isotope was present in the beginning), a steady rate of decay of certain radioactive isotopes of elements called radioisotopes, and a lack of tampering with the system (e.g., elements added or subtracted since the radioisotope "clock" first began counting time).That's a tough question, and the reality is we'll probably never actually know.

dating the age of dinosaurs-81

A trio of geologists has published what they called the first successful direct dating of dinosaur bone.

They used a new laser technique to measure radioisotopes in the bone, yielding an age of millions of years.

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.

You might think dating dinosaurs would be an easy task, but in reality it's actually quite difficult.

We date dinosaurs based on where we find their fossils, using the ages of the rocks that they're found in.

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.

Past events cannot be repeated as per scientific methodology.

For example, try to repeat Abe Lincoln’s life—no one can do it.

There has been wide agreement among paleontologists that dinosaurs became extinct roughly 65.5 million years ago.

927 Comments

  1. en entrant sur Sextv247.com, vous certifiez avoir pris connaissance des obligations suivantes : Je suis majeur selon la rglementation de mon pays et averti du caractre pornographique et rotique de certaines images et hyperliens du site Sextv247

  2. That's right: You can chat for hours, find thousands of personals, and meet new single women and men without having to pay for a subscription, unlike with other online dating sites.

  3. To keep this resource 100% free for users, we receive advertising compensation from the sites listed on this page.

  4. "Best if Used By" is a type of date you might find on a meat, poultry, or egg product label. Does it mean the product will be unsafe to use after that date?

  5. College coeds Teach these naughty nympho sluts a lesson!

  6. "I don’t like going out in the middle of the night, or any time of the day, for a manicure and pedicure. Chris Christie, Booker again denied the loose talk.

  7. If you wonder what is in the heads of those pretty Russian, Ukrainian and Eastern European girls that you see on various websites advertising themselves as available for marriage with western men, you are at the right place to find it out!

  8. Are there any totally free, no strings attached dating sites for sex?

Comments are closed.