The Dinosaur Extinction Event in a Nutshell! Chicxulub crater (Vblog #8) – Video

Posted: February 24, 2013 at 8:45 pm

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Video Link: https://www.youtube.com/watch?v=rzZ2vZA8GO4



The Dinosaur Extinction Event in a Nutshell! Chicxulub crater (Vblog #8)
What killed the cute and fluffy dinosaurs? Find out in todays science video blog! Dinosaurs are still alive, they are among us! But how can dinosaurs still alive... when they were killed by an asteroid 66 million years ago? Well, turns out that is not that simple. While schoolbooks are happy about the awesome asteroid hit the earth and killed everything story, scientists are not. In the scientific community there is still a debate going on, what actually killed the dinosaurs. The asteroid impact in mexico did take place for sure. We find tektites In drilling cores across the world, which are caused by molten stone pieces upon the asteroid impact [tektites picture] (Schulte et al. 2010). Asteroids have carry lots of Iridium, which is not found on earth in high abundances. A pike in iridium concentration and a lack of dinosaur fossils afterwards marks the end of the dinosaurs (Cretaceous period) and the start of a new geologic period the Tertiary. This could be the end of the story, asteroid hits the earth, dinosaurs die out. Subscribe! However some scientists claim that the dinosaurs did survive for another 300.000 years after the Chicxulub meteor impact (Keller et al. 2007). Also other phenomena like increased volcanic activity or a sudden drop in global temperature at the end of the Cretaceous period were proposed (Archibald et al. 2010, and other responses to Schulte et al. 2010). The debate seams to be quite heated, but a recent publication with a more exact dating of ...

By: sciencelion

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The Dinosaur Extinction Event in a Nutshell! Chicxulub crater (Vblog #8) - Video

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