HOW ASTEROIDS REALLY KILLED THE DINOSAURS - |URDU| HINDI | LAST DAY OF THE DINOSAURS IN WORLD
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The asteroid or comet that smacked into Earth 66 million years ago might not be the only culprit behind the dinosaurs' demise.
Two new studies in the journal Science examine the possible connection between this impact (now visible as Chicxulub Crater in the region of Yucatan, Mexico), and huge volcanic eruptions in India, on the opposite side of the world. Researchers involved in the two separate studies say it's therefore unclear to what degree the impact, as opposed to the volcanoes, triggered the mass extinction that killed the dinosaurs, as well as numerous other lifeforms.
In one of the papers, scientists uncovered the most precise dates yet for the Indian volcanic eruptions around the end of the Cretaceous period, when this mass extinction happened about 66 million years ago. During this million-year-long eruption, the volcanoes shot lava flows for hundreds of miles across India. This process created flood basalts, now called the Deccan Traps, that in some areas are nearly 1.25 miles (2 kilometers) thick. [Photos: Asteroids in Deep Space]
"I would say, with pretty high confidence, that the eruptions occurred within 50,000 years, and maybe 30,000 years, of the (asteroid) impact," that paper's senior author, Paul Renne, a planetary scientist at the University of California, Berkeley, said in a statement.
He added that given the study's margin of error, these eruptions occured at about the same time as the cosmic crash. "That is an important validation of the hypothesis that the impact renewed lava flows."