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An asteroid crater undiscovered by the coast West Africa It may hold some answers about how the dinosaurs became extinct.
Roughly 66 million years ago, a large asteroid, named Chicxulub Crater, collided with Earth at the end of cretaceous period, causing the destruction of dinosaurs. However, researchers have now found a new meteorite crater off the coast of West Africa that impacted Earth around the same time, according to a study released Thursday by science progress.
Due to the name Nadir Crater, it is located off the coast of Guinea, West Africa, 300 meters above sea level and 400 kilometers from the nearest land with a diameter of 8.5 kilometers. Although Nadir is not as large as Chicxulub, analysis of the age of the nearby fossils indicates that it is a very similar age.
The discovery was made by Dr Uisdean Nicholson, a professor at Heriot-Watt University in Edinburgh, UK. Originally, he was checking seismic survey data when he fell on crater evidence.
Nicholson He told the BBC. “A rare form is a diagnosis of an asteroid impact. It’s got a raised rim surrounding a raised central region, and then layers of debris extending outward.”
Some other researchers, such as Career Sean Gulick, have suggested that Nader may have hit Earth at the same Chicxulub crater, but scientists can’t make that determination until further inspections of the African crater.
“A much younger cousin, or sister, doesn’t necessarily add to what we know about the extinction of the dinosaurs, but it does add to our understanding of the astronomical event that was Chicxulub,” Gulick told the BBC.
The asteroid that caused the Chicxulub crater to fall into the Gulf of Mexico is measured 12 kilometers in length, causing a depression of 200 kilometers in width. The avalanche caused devastating firestorms and tsunamis that put the Earth into an ice age, killing many species in the world.
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