New York: Volcanic bustle in the Deccan Traps located on the Deccan Plateau of west-central India, and not an asteroid, may have wiped out the dinosaurs from the earth about 65-million-years ago, a new study said.
The research suggests that tens of thousands of years of lava stream from the Deccan Traps, one of the largest volcanic features on Earth near modern day Mumbai, may have discharged poisonous levels of sulphur and carbon dioxide, causing the mass extinction.
The latest study is the new induction in an already intensified discussion over whether an asteroid or volcanism resulted in the extinction of the dinosaurs in the mass die-off known as the K-T extinction about million years ago.
Alvarez hypothesis, earlier, argued that a giant meteorite impact at Chicxulub, Mexico, around 65 million years ago released toxic amounts of dust and gas, blocking out the Sun to cause widespread cooling, choking the dinosaurs and poisoning sea life. The meteorite impact may also have set off volcanic activity, earthquakes and tsunamis.
The new study “really demonstrates that we have Deccan Traps just before the mass extinction, and that may contribute partially or totally to the mass extinction,” local newspaper quotes Eric Font, a geologist at the University of Lisbon.
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