Home From the Wires Scientists nail down more precise dinosaur extinction date

Scientists nail down more precise dinosaur extinction date

| Print |  Email
Friday, February 08, 2013

BBC: Scientists have determined the most precise date yet for dinosaur extinction, using dating techniques on rock and ash samples. Dinosaurs died 66,038,000 years ago, give or take 11,000 years.

That date appears to coincide with the impact of a comet or asteroid.

Debate has raged as to whether the giant impact was the sole cause of a quick demise of the dinosaurs, whether they were already in decline at the time of the impact, or whether the impact in fact happened as much as 300,000 years after they were gone.

Read more.

 

More Articles

Molecular Movies

September 2014
Wednesday, August 27, 2014
BY LINDA BAKER

Dr. Chong Fang isn’t God. But the assistant professor of chemistry at Oregon State University is getting closer to figuring out how he put everything together. 


Read more...

Green Endeavor cleans up

News
Wednesday, August 06, 2014
080614 ULnew greenendeavorBY LINDA BAKER | OB EDITOR

Portland startup Green Endeavor strikes gold, inking a partnership with Underwriters Laboratories, an Illinois-based consulting and certification company with offices in 46 countries.


Read more...

Downtime

September 2014
Wednesday, August 27, 2014
BY JESSICA RIDGWAY

How State Representative Julie Parrish (House District 37) balances life between work and play.


Read more...

Podcast: Testing for Emotional Intelligence with John Hersey

Contributed Blogs
Friday, September 19, 2014
ivbU3sIXBY TOM COX | OB BLOGGER

How can you tell if you, a peer, a subordinate or a job candidate has the emotional intelligence needed to do well?


Read more...

Is this employee right?

Contributed Blogs
Wednesday, August 13, 2014
081314 thumb employeefeelingsBY TOM COX | OB BLOGGER

When I say, “Your Employee is Always Right,” I do not mean “right about the facts,” but rather “right about how they feel” and “right about how they want to be led.”


Read more...

The Alchemist

September 2014
Tuesday, August 26, 2014
BY LINDA BAKER

David Howitt explains why Portland consumer brands like Stumptown and Voodoo Doughnuts are taking the world by storm.


Read more...

Two sides of the coin

Contributed Blogs
Monday, August 25, 2014
0825 thumb moneyBY JASON NORRIS | OB GUEST BLOGGER

Ferguson Wellman’s investment views on the economy and capital markets.


Read more...
Oregon Business magazinetitle-sponsored-links-02
SPONSORED LINKS