Cretaceous–Tertiary extinction event

The MIT and princeton researchers used high precision geochronology to determine the age of rocks on the so called deccan traps. To evaluate whether the extinction happened before or after the volcanic eruptions. The researchers collected more than 50 samples of rocks from that certain region in india to record data, Fortunately, samples from both the bottom and top of this volcanic layer contained zircon, allowing the team to pinpoint the timing of the beginning and end of the Deccan Traps eruptions. During the time of the volcanos erupting, over 10,000 volcanos erupted and because of all of this the volcanic dust blocked the sun and because of the sunlight being blocked then had the earth get less oxygen than having the dinosaurs then suffocate because the volcanic dust lowered the oxygen…

Dinosaurs In The Jurassic Time Period By: David Wallace This project is going to be based on some of the dinosaurs in the Jurassic Time Period and it will give information about that dinosaur as well. Vertebrates taking to the air like the pterosaurs and the first birds. This was the Jurassic Period, 199.6 to 145.5 million years ago, a 54-million-year chunk of the Mesozoic Era. Air, land, or sea, dinosaurs came in all shapes and sizes in many different places around the world. The first…

The Cretaceous-Paleogene Boundary, (K-Pg) boundary, and the associated Dinosaur Extinc-tion theories have many precedents and most could be viewed scientifically from certain and known historical accounts. These hypotheses, some more believable than others, can serve a purpose to study current life and potential trends for future evolutionary traits. Evaluating certain aspects of the theory’s within this research, the main focus will be not be on the factual cause of the extinction, but rather…

the Cretaceous. Each of these periods is divided into many epochs and ages. Earth during the Mesozoic Era was much warmer than today, and the planet had no polar ice caps. During the Triassic Period, Pangaea still formed one massive supercontinent. Without much coastline to moderate the continent's interior temperature, Pangaea experienced major temperature swings. During the Mesozoic, or Middle Life Era, life diversified rapidly and giant reptiles, dinosaurs and other monstrous beasts roamed…

tion Questions Alannah Dodd Period 2 1. Explain the title of the book The Sixth Extinction is a book all about the fact that the earth as we know it has proceeded through 5 “waves” of mass extinctions, and is currently in the middle of yet another wave of mass extinction (the sixth). These “unnatural” occurrences have displayed shocking changes to the variety of species on the globe, hence the title: “The Sixth Extinction, An Unnatural History.” 2. What gave people the idea…

THEIR ARE MANY MANY THEORIES ON WHY THE DINOSAURS BECAME EXTINCT THE CAUSE OF THIS MASS EXTINCTION VARIES WIDELY. Some of those theories are that Years ago an asteroid crashed onto Earth’s surface. Mountains formed within minutes. In America, a tsunami hit covering plants and animals, under piles of rubble. Debrie was scattered, The planet was broken down and it stayed that way for years. But the most clear explanation to why the dinosaurs rapidly died out with the Mose scientific evedence is…

nest was about 3 meters long which mean that the young dinosaur was several years old. Although they are old in comparison to other dinosaurs their age, their bones were undeveloped. Therefore, they needed extensive care. There was no vegetation around the nesting which means the parents must bring food back to the nest to feed their "hatchlings." A theory to why the dinosaur parental drive the response to the "cuteness" of the "hatchlings." The K-T extinction wiped out the majority of the…

that 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.…

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 theory, also with not as much evidence, is the volcanic eruption theory. This theory…

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 dust, and debris into the atmosphere…