52-foot-tall ‘megaripples’ from dinosaur-killing asteroid are hiding below Louisiana


Ancient “megaripples” as tall as five-story buildings are hiding deep below Louisiana, and their distinctive geology signifies that they fashioned within the fast aftermath of the asteroid strike that killed the nonavian dinosaurs, a brand new research finds.

The 52-foot-tall (16 meters) megaripples are about 5,000 ft (1,500 m) below the Iatt Lake space, in north central Louisiana, and date to the top of the Cretaceous period 66 million years in the past, when that a part of the state was underwater, the researchers mentioned. The megaripples’ measurement and orientation recommend that they fashioned after the large space rock, generally known as the Chicxulub asteroid, slammed into the Yucatán Peninsula, resulting in the Chicxulub impact tsunami, whose waves then rushed into shallower waters and created the megaripple marks on the seafloor, the researchers mentioned. 

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