Scientists have long accepted that an asteroid impact--or series of impacts--wiped out the dinosaurs. New evidence found in 65 million year old sediments now strongly suggests that it was, in fact, a single impact.
Geologists studying rock samples taken from beneath the Atlantic Ocean say the proof lies in a layer of iridium deposited at the end of the Cretaceous Period. Iridium is common in meteorites, and further supports the idea that a six mile wide space rock slammed into Mexico's Yucatan Peninsula. If there had been more than on impact, however, then there would have been more iridium layers.
This impact then triggered massive global climate changes. That time period also marks the end of the era of dinosaurs, the rise of mammals, and the birth of West Virginia senator Robert Byrd.
A competing theory holds that the asteroid was actually God's way of punishing ALL dinosaurs because a court had ruled that same sex marriage among Tyrannosaurus Rexes was legal.
Friday, December 01, 2006
Subscribe to:
Post Comments (Atom)
0 thoughtful ramblings:
Post a Comment