Permian–Triassic extinction event

be wiped from existence. This was the case with the dinosaurs and many other species living in the Mesozoic-Cenozoic period. 65 million years ago a meteorite roughly 10 km across hit the earth’s surface, and the impact would be a catalyst to the extinction of 75% of the species living on earth at the time, including the dinosaurs. The impact of the meteorite would have instantly killed any organisms within proximity. But a majority of destruction happened after the impact. The impact blew enough…

in a layer of dust (Smith, 2005). In Mexico there is a crater with a diameter of 180km called Chicxulub that has been dated to have first surfaced 65 million years ago leading scientists to believe that whatever caused the crater lead also to the extinction of the dinosaurs. Iridium, a rare metal that is also found in asteroids, has also been discovered as a layer covering the whole surface area on the Earth. Asteroids contain Iridium, a rare metal, this same metal has been found in a layer…

tyrannosaurus rex and the triceratops once roamed the Earth. Suddenly all these great creatures disappeared and it’s not quite sure how they vanished from existence. There are several theories to explain what is known to be the most popular mass extinction of all time. Asteroid The belief that an asteroid struck the planet earth is the most common and most believed theory. This theory has more evidence to back it up than just a giant rock hitting the Earth. This theory is backed up by the…

they cannot resist it from happens which is extinction of their own kinds. This issue is what most human just ignore about and they tend not to deal with it. History of Earth shows that there are five major extinction events and the fifth extinction is the one that killed every dinosaur on the Earth surface as a result of an asteroid. Earth is now in the eve of sixth extinction as humanity has become the asteroid that would drive species to extinction even quickly than they should be. Marine…

How did the dinosaurs die There are many theories on how the dinosaurs became extinct over 100 million years ago. The theory that is most common, is the asteroid theory. The asteroid theory proposes the idea that an asteroid hit the earth, reduced levels of sunlight, and dropped temperatures, resulting in plants being unable to grow, the plant eaters dying, and leaving no food for the meat eaters. This theory is like a major chain reaction, wiping out every dinosaur on the planet. Another…

Did one single disaster cause the K-T extinctions? Some scientists and people are committed to just one reason the K-T extinctions occurred but in this paper many possibilities will be explored with evidence to back up why they could have been a cause as well to the extinctions. Everyone will ultimately make his or her own decision/thoughts on what could have happened, and of course all hypotheses would be subject to analysis. Asteroid impact theory. The impact of a 10 km+ asteroid would blow a…

sedimentary layer were brought there via volcanic eruptions (“What killed the dinosaurs?” n.d. para. 5). Because iridium is common in the Earth’s core, this supports the volcanism hypothesis. Iridium could have been brought to the surface by these explosive events, forming the high levels we now see in the sediment layer. In addition, there is evidence of lava flow, covering 200,000 square miles at depths of more than 6,500 feet in the Deccan region of India (“What killed the dinosaurs?” n.d.…

GANGANNA RAVINDRA Abstract— About Sixty-five million years ago, one of last non-avian reptile species called dinosaurs vanished from the earth. The extinction of this huge animal is a never-ending topic of interest, the mass extension of dinosaurs occurred over a very short geological period. Keywords— Non-Avian Dinosaurs, Mass extinction, Dinosaurs extinction theories; Asteroid impact; Volcanism; I. INTRODUCTION Dinosaurs are the certain group of reptiles which influenced and ruled the…

major meteorite impact may not have been the sole cause of the mass extinction involving the dinosaurs 66 million years ago. Researchers have discovered an array of huge volcanic eruptions in india 66 million years ago which released large amounts of gases into the atmosphere, which drastically altered the climate. This new theory does not in fact eliminate the theory of a massive meteorite being a leading cause for the extinction of the dinosaurs, it simply examines how the meteorite is…

The extinction of the dinosaurs is one of the most well-known mysteries in our great world, the Earth has its history in the layers, these layers can tell us when, where, and how something happened, the K-T boundary is no exception. These large slabs of Earth can show us the past, millions of years of history, to the beginning. What scientists around the world are trying to figure out, is why the dinosaurs died out, there are many different and unique theories about the K-T extinction. Some…