Oldest rocks on Earth found

[Contrary1]

Researchers determined samples were from 3.8 to 4.28 billion years old



"Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks.

Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun. Remnants of crust from Earth's infancy are hard to come by because most of that material has been recycled into Earth's interior several times by the plate tectonics that continue to shape our planet's surface.

In 2001, geologists found an expanse of bedrock, known as the Nuvvuagittuq greenstone belt, exposed on the eastern shore of Hudson Bay in northern Quebec.

Suspecting that the rocks there could be from one of the earliest periods of Earth's history, geologists took samples to try and determine their age. They measured tiny variations in the isotopes (or species of an element that have different numbers of neutrons) of the rare earth elements neodymium and samarium in the rocks and determined that the samples were from 3.8 to 4.28 billion years old..."

http://www.msnbc.msn.com/id/26890176/

[billyoc]

1. Ask Governor Palin her opion on the 4 billion year old rocks.

:rofl:

[RoccoR5955]

13. Come on, after all, Sarah believes in a talking snake.

Do you think she'll believe that rocks are older than what anything says in her mythology?

[qanda]

2. Further tests confirmed they're still smarter than Sarah Palin

And younger than John McCain

[Dr Fate]

6. dupe

n/t

[Dr Fate]

9. Pailin insists that those rocks cant be a day older than 10,000 years. n/t

n/t

[Tangerine LaBamba]

3. My first thought.........

.............. was that someone found McCain's balls.

[tularetom]

4. Were they rattling around in Grampa Abe McCain's head?

[BlooInBloo]

5. Pfft. We already knew where McDirt was.

[Oregone]

7. Canada has all the coolest stuff.

[underpants]

8. I thought McCain had to fly back to Washington

:shrug:

[postmanisu]

10. hey look its mccain 11th house.

[TheCowsCameHome]

11. McCain invented them. No big deal.

[Pyrzqxgl]

12. McCain's nuts?

[Gman]

14. Well, they at least narrowed it down to 175,200,000 days