Bang Goes That Theory…
“The popular theory that dinosaurs were wiped out by an asteroid 65million years ago has been challenged. It was believed the Chicxulub crater in Mexico was the ’smoking gun’ of the mass extinction event. Molten droplets from the ancient asteroid impact were found just below the Cretaceous-Tertiary boundary – a geological layer of sediment linked with the extinction. But soil samples from the 112-mile wide crater show the impact predates the disappearance of the dinosaurs by about 300,000 years… Study author Professor Gerta Keller from Princeton University suggested that the massive volcanic eruptions at the Deccan Traps in India may be responsible for the extinction, releasing huge amounts of dust and gases that could have blocked out sunlight and brought about a significant greenhouse effect.” w/ photos
