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Alvarez hypothesis
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The Alvarez hypothesis posits that the mass extinction of the non-avian dinosaurs and many other living things during the Cretaceous–Paleogene extinction event was caused by the impact of a large aste
Luis Walter Alvarez, left, and his son Walter, right, at the K–T boundary in Gubbio, Italy, 1981
Luis Walter Alvarez, left, and his son Walter, right, at the K–T boundary in Gubbio, Italy, 1981
Badlands near Drumheller, Alberta where erosion has exposed the K–Pg boundary.
Badlands near Drumheller, Alberta where erosion has exposed the K–Pg boundary.
The Western Ghats, a province within the Deccan Traps that has been thoroughly studied
The Western Ghats, a province within the Deccan Traps that has been thoroughly studied
Pingualuit aerial 2007
Pingualuit aerial 2007
Chicxulub crater
Videos
The Chicxulub crater is an impact crater buried underneath the Yucatán Peninsula in Mexico. The crater is named after the onshore inland community of Chicxulub Pueblo. It was formed slightly over 66 m
Alvarez hypothesis
…was suggested by Dutch paleontologist Jan Smit. In March 2010, an international panel of scientists endorsed the asteroid hypothesis, specifically the Chicxulub impact, as being the cause of the extinction. A team of 41 scientists reviewed 20 years of scientific literature and in so doing also ruled out other theories…
Artist's impression of the asteroid slamming into tropical, shallow seas of the sulfur-rich Yucatán Peninsula in what is today Southeast Mexico. The a
Artist's impression of the asteroid slamming into tropical, shallow seas of the sulfur-rich Yucatán Peninsula in what is today Southeast Mexico. The aftermath of the asteroid collision, which occurred approximately 66 million years ago, is believed to have caused the mass extinction of non-avian dinosaurs and many other species on Earth. The impact spewed hundreds of billions of tons of sulfur into the atmosphere, producing a worldwide blackout and freezing temperatures which persisted for at least a decade.
The center of the crater is near Chicxulub Puerto.
The center of the crater is near Chicxulub Puerto.
Stela in the main square of Chicxulub Puerto commemorating the impact
Stela in the main square of Chicxulub Puerto commemorating the impact