Dinosaurs Went Extinct Almost Immediately After Mexican Asteroid Strike

scientist using a new and highly exact dating proficiency have concluded that the late Cretaceous asteroid strike in Mexico ’s Yucatan Peninsula co-occur almost precisely with the extinction of the dinosaur — give - or - take a few tens of thousands of years . While it ’s clear that other agent were contributing to the rapidly drop environmental weather , it ’s now obvious that the asteroid was the final coup - Delaware - grace for the dinosaurs .

Indeed , all was not well on Earth when the asteroid struck . Volcanoes in India werewreaking havocto the major planet ’s ecosystem , andearlier asteroid strikesmay have contributed to an already frail environment . Other inquiry shows that Earth experienced six disconnected temperature shifts of two degrees or more in base temperature in the one million years before the impact . In one instance , the temperature swung 6 - 8 degrees .

More grounds that volcanoes killed the dinosaur

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These factors give dubiety in the minds of some researchers , who wondered what it was , exactly , that truly caused the dinosaurs to go nonextant . Moreover , previous studies showed considerable mutual exclusiveness with the timing of certain events , leading researchers from Berkeley ’s Geochronology Center ( BGC ) , the University of California , Berkeley , and universities in the Netherlands and the United Kingdom to investigate further — but this time with a new instrument .

Their re - analytic thinking utilise a recalibrated atomic number 18 - Ar go steady technique that allowed for more accurate mensuration of both the wallop date and the dinosaurs ’ experimental extinction .

Researchers Paul Renne , Jan Smit and fellow worker learn that the Yucatan wallop event happened 66,038,000 days ago — give or take 11,000 years . It ’s an inordinately accurate mensuration , as it was only a few decades ago that the margin for error were value in the millions of days .

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The scientist also update the engagement of dinosaur extermination . It occur about 33,000 years after the asteroid impact , which is a revision from the previous estimate of 300,000 long time ( which , when considering the cataclysmic effects of the impact , did n’t really make a circle of gumption ) . Given the narrow-minded gross profit margin of mistake for the go steady technique , it ’s very probable , therefore , that the asteroid impact coincided almost exactly with the dying of the dinosaurs . Consequently , the researchers are describing the event as the final C . It was not the only element , they allow , but it was certainly a major contributor .

The scientists make this ratiocination after analyzing the tektites ( glassy domain ) and ash left over from the impingement . The team looked at grounds from both the dinosaur extinguishing date ( including ash collect from the Hell Creek Formation in Montana , the rootage of many dinosaur dodo ) and the crater formation event ( namely tektite from Haiti ) .

“ The impingement was clearly the final straw that advertize Earth past the tipping point , ” said Renne through astatement . “ We have show that these events are synchronic to within a gnat ’s eyebrow , and therefore the wallop understandably played a major role in extinctions , but it probably was n’t just the encroachment . ”

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