Dinosaurs, a dominating specie living in the Earth long time ago, extinct mysteriously. Paleontologists and scientists have established a variety of possible theories to explain. However, all these theories are still debatable.There are four main possible explanations: Asteroid Impact, Volcano Eruption, Falling Tide and
Asteroid Impact theory was established by Luis Alvarez in 1980.Many plants and animals were disappeared abruptly from the fossil record as one moves from layers of rocks documenting the end of the Cretaceous up into rocks representing the beginning of the Cenozoic. Between the last layer of Cretaceous rock and the first layer go Cenozoic rock, there is often a thin layer of clay. Scientists thought that calculate the amount of iridium in the clay could find how many time were needed to create the layer. Luis realized that sedimentary layers found all over the world at the Cretaceous–Paleogene boundary contain a concentration of iridium many …show more content…
Joerger Fall is the founder of this theory. Fall is a astrophysicist and he suggested that the Earth was threaten by the comics particle storm sixty million years ago. When the Earth faced the particle storm, the speed of particles which attended into the Earth would be much faster than ever and because of that, the original particles in the atmosphere were ‘laniated’ to form the condensation nucleus which is the key to rain. The consequence of this phenomenon was the increasing thickness of the atmosphere. The globe precipitation increased dramatically and the temperature lower down abruptly. Dinosaurs could not adapted this situation and extinct.(Joerger Fall(2011), Science Illustrated Magazine, Germany)
To sum up, these are the main four theories to account for the dinosaurs extinction. Although the truth of dinosaurs extinction has not been proved, I believe people can solve this question in the future because the highly developed science and
Asteroid Impact theory was established by Luis Alvarez in 1980.Many plants and animals were disappeared abruptly from the fossil record as one moves from layers of rocks documenting the end of the Cretaceous up into rocks representing the beginning of the Cenozoic. Between the last layer of Cretaceous rock and the first layer go Cenozoic rock, there is often a thin layer of clay. Scientists thought that calculate the amount of iridium in the clay could find how many time were needed to create the layer. Luis realized that sedimentary layers found all over the world at the Cretaceous–Paleogene boundary contain a concentration of iridium many …show more content…
Joerger Fall is the founder of this theory. Fall is a astrophysicist and he suggested that the Earth was threaten by the comics particle storm sixty million years ago. When the Earth faced the particle storm, the speed of particles which attended into the Earth would be much faster than ever and because of that, the original particles in the atmosphere were ‘laniated’ to form the condensation nucleus which is the key to rain. The consequence of this phenomenon was the increasing thickness of the atmosphere. The globe precipitation increased dramatically and the temperature lower down abruptly. Dinosaurs could not adapted this situation and extinct.(Joerger Fall(2011), Science Illustrated Magazine, Germany)
To sum up, these are the main four theories to account for the dinosaurs extinction. Although the truth of dinosaurs extinction has not been proved, I believe people can solve this question in the future because the highly developed science and