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Sixty-five million years ago, a comet or asteroid larger than Mount Everest slammed into the Earth, inducing an explosion equivalent to the detonation of a hundred million hydrogen bombs. Vaporized detritus blasted through the atmosphere upon impact, falling back to Earth around the globe. Disastrous environmental consequences ensued: a giant tsunami, continent-scale wildfires, darkness, and cold, followed by sweltering greenhouse heat. When conditions returned to normal, half the plant and animal genera on Earth had perished.This horrific chain of events is now widely accepted as the solution to a great scientific mystery: what caused the extinction of the dinosaurs? Walter Alvarez, one of the Berkeley scientists who discovered evidence of the impact, tells the story behind the development of the initially controversial theory. It is a saga of high adventure in remote locations, of arduous data collection and intellectual struggle, of long periods of frustration ended by sudden breakthroughs, of friendships made and lost, and of the exhilaration of discovery that forever altered our understanding of Earth's geological history.… (plus d'informations)
Evocation passionnante d'une des plus grandes énigmes de l'histoire de la Terre. Alvarez, jeune géologue, travaillant sur la limite crétacé-tertiaire va, comme un détective, trouver les preuves qui confirmeront l'hypothèse d'un astéroïde tueur ! ( )
Informations provenant du Partage des connaissances anglais.Modifiez pour passer à votre langue.
This book is affectionately dedicated to Milly Alvarez
A skillful and compassionate leader in her own feld of mental health, and the perfect companion during thirty years of geological expeditions on five continents
Premiers mots
Informations provenant du Partage des connaissances anglais.Modifiez pour passer à votre langue.
This is the story of one terrible day in the history of the Earth.
Citations
Derniers mots
Informations provenant du Partage des connaissances anglais.Modifiez pour passer à votre langue.
For, as we watched the violence being inflicted on another planet, we were seeing the reenactment of the last spectacle ever witnessed by Tyrannosaurus rex—the deadly flash from the Crater of Doom, on the day the Mesozoic world ended.
Sixty-five million years ago, a comet or asteroid larger than Mount Everest slammed into the Earth, inducing an explosion equivalent to the detonation of a hundred million hydrogen bombs. Vaporized detritus blasted through the atmosphere upon impact, falling back to Earth around the globe. Disastrous environmental consequences ensued: a giant tsunami, continent-scale wildfires, darkness, and cold, followed by sweltering greenhouse heat. When conditions returned to normal, half the plant and animal genera on Earth had perished.This horrific chain of events is now widely accepted as the solution to a great scientific mystery: what caused the extinction of the dinosaurs? Walter Alvarez, one of the Berkeley scientists who discovered evidence of the impact, tells the story behind the development of the initially controversial theory. It is a saga of high adventure in remote locations, of arduous data collection and intellectual struggle, of long periods of frustration ended by sudden breakthroughs, of friendships made and lost, and of the exhilaration of discovery that forever altered our understanding of Earth's geological history.
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